Tootfinder

Treasury sanctions fake IT worker scheme that funds DPRK weapons programs
https://home.treasury.gov/news/press-releases/sb0230

Treasury Sanctions Fraud Network Funding DPRK Weapons Programs
Network’s Scheme Harms American BusinessesWASHINGTON — Today, the U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC) sanctioned Vitaliy Sergeyevich Andreyev, Kim Ung Sun, Shenyang Geumpungri Network Technology Co., Ltd, and Korea Sinjin Trading Corporation for their roles in a fraudulent information technology (IT) worker scheme orchestrated by the Democratic People’s Republic of Korea (DPRK) government. “The North Korean regime continues to target American b…

Governments, tech companies meet in Tokyo to share tips on fighting North Korea IT worker scheme https://therecord.media/japan-us-south-korea-forum-north-korea-it-worker-scheme

On Google's New Backup-and-Sync, and G-Drive: Reviews (2017) - An efficient and simple backup scheme that works for me, that does not carry a big price tag nor carbon footprint. - https://www.earth.org.uk/note-on-backup-energy-efficiency.html

On Googles New Backup-and-Sync, and G-Drive: Reviews (2017)
An efficient and simple backup scheme that works for me, that does not carry a big price tag nor carbon footprint.

Marist Liufau an early standout in camp, speaks on Eberflus scheme: 'I love it' https://www.dallascowboys.com/news/marist-liufau-an-early-standout-in-camp-speaks-on-eberflus-scheme-i-love-it

An implicit-explicit BDF-Galerkin scheme of second order for the nonlinear thermistor problem
R. Altmann, A. Moradi
https://arxiv.org/abs/2508.17004 https://

An implicit-explicit BDF-Galerkin scheme of second order for the nonlinear thermistor problem
This paper proposes and analyzes an implicit-explicit BDF-Galerkin scheme of second order for the time-dependent nonlinear thermistor problem. For this, we combine the second-order backward differentiation formula with special extrapolation terms for time discretization with standard finite elements for spatial discretization. Unconditionally superclose and superconvergent error estimates are established, relying on two key techniques. First, a time-discrete system is introduced to decompose th…

Arizona Woman Sentenced for $17M Information Technology Worker Fraud Scheme that Generated Revenue for North Korea (US Department of Justice)
https://www.justice.gov/opa/pr/arizona-woman-sentenced-17m-information-technology-worker-fraud-scheme-generated-revenue
http://www.memeorandum.com/250725/p58#a250725p58

Anthropic's Threat Intelligence report for August says Claude was weaponized for sophisticated cybercrimes, including a "vibe-hacking" data extortion scheme (Hayden Field/The Verge)
https://www.theverge.com/ai-artificial-int

‘Vibe-hacking’ is now a top AI threat
Anthropic’s new Threat Intelligence report, out today, details the wide range of cases in which Claude — and likely many other leading AI agents and chatbots — are being abused.

Each week, Metacurity offers our free and paid subscribers a digest of the best long-form (and longish) infosec-related pieces we couldn't properly fit into our daily news crush.
This week's selection covers
--N. Korea's IT worker scheme ensnared a troubled woman,
--Iran is harvesting millions of airline passengers' data,
--Myanmar is isolated in its digital tyranny,
--Pushing the UK to abandon its encryption backdoor,
--The racist hacker …

Best infosec-related long reads for the week of 7/19/25
N. Korea's IT worker scheme ensnared a troubled woman, Iran is harvesting millions of airline passengers' data, Myanmar is isolated in its digital tyranny, Pushing the UK to abandon its encryption backdoor, The racist hacker attacking universities, Making quantum cryptography stronger

I really like this idea.
"Originally a faded turquoise, the bus is now vibrant orange with a cream-colored roof, the color scheme used by The Milwaukee Electric Railway & Light Company. Its windows and doors have been repaired, with two awning-style service windows installed to give waitstaff easy access."
#Milwaukee #MCTS #Bus

"massive cryptocurrency Ponzi scheme that defrauded hundreds of thousands of victims worldwide"
Western District of Washington | Two Estonian fraud defendants sentenced for $577 million fraud scheme | United States Department of Justice
https://www.justice.gov/usao-wdwa/pr/two-estonian-fraud-defendants-sentenced-577-million-fraud-scheme

Surface growth scheme for bulk reconstruction and $T\bar T$ deformation
Hao-Chun Liang, Jia-Rui Sun, Yuan Sun
https://arxiv.org/abs/2507.18435 https://arxi…

Surface growth scheme for bulk reconstruction and $T\bar T$ deformation
In this paper, we study the dynamical connection between the surface growth scheme and the conformal field theory with $T\bar{T}$ deformation. By utilizing the extended one-shot entanglement distillation tensor network, we find that the iterative growth, i.e. radial evolution of homogenous and isotropic bulk minimal surfaces in asymptotically anti-de Sitter (AdS) spacetime can be mapped to the $T\bar{T}$ operator flow driven by the deformation parameter. Our results show that the $T\bar{T}$ def…

I'm increasingly hesitant to click on recommended videos with intriguing-sounding titles on YouTube, especially science, lifehack, or celebrity oriented. It takes a while to realise the narrator's voice sounds off, the title was a clickbait, or that the video doesn't tell anything with substance. Then you check the channel page and you see that some poor devil with a get-rich-quick scheme in mind has churned out 85 AI(-aided) videos in the last month, amassing tens of thousands o…

Topology Aware Neural Interpolation of Scalar Fields
Mohamed Kissi, Keanu Sisouk, Joshua A. Levine, Julien Tierny
https://arxiv.org/abs/2508.17995 https://…

Topology Aware Neural Interpolation of Scalar Fields
This paper presents a neural scheme for the topology-aware interpolation of time-varying scalar fields. Given a time-varying sequence of persistence diagrams, along with a sparse temporal sampling of the corresponding scalar fields, denoted as keyframes, our interpolation approach aims at "inverting" the non-keyframe diagrams to produce plausible estimations of the corresponding, missing data. For this, we rely on a neural architecture which learns the relation from a time value to the correspo…

Reweighting scheme for the calculation of grand-canonical expectation values in quantum Monte Carlo simulations with a fermion sign problem
Paul Hamann, Jan Vorberger, Tobias Dornheim
https://arxiv.org/abs/2508.18935

Reweighting scheme for the calculation of grand-canonical expectation values in quantum Monte Carlo simulations with a fermion sign problem
Ab initio path integral Monte Carlo (PIMC) simulations constitute the gold standard for the estimation of a broad range of equilibrium properties of a host of interacting quantum many-body systems spanning conditions from ultracold atoms to warm dense quantum plasmas. A key practical limitation is given by the notorious fermion sign problem, which manifests as an exponential computational bottleneck with respect to system size and inverse temperature. In practice, the sign problem is particular…

Marist Liufau ready to run wild in 'LB guru' Eberflus' aggressive scheme https://www.si.com/nfl/cowboys/news/dallas-cowboys-marist-liufau-ready-run-wild-linebacker-guru-matt-eberflus-aggressive-scheme

Convergence and error analysis of a semi-implicit finite volume scheme for the Gray--Scott system
Tsiry Avisoa Randrianasolo
https://arxiv.org/abs/2508.18910 https://

Convergence and error analysis of a semi-implicit finite volume scheme for the Gray--Scott system
We analyze a semi-implicit finite volume scheme for the Gray--Scott system, a model for pattern formation in chemical and biological media. We prove unconditional well-posedness of the fully discrete problem and establish qualitative properties, including positivity and boundedness of the numerical solution. A convergence result is obtained by compactness arguments, showing that the discrete approximations converge strongly to a weak solution of the continuous system. Under additional regularit…

Yotta: A Large-Scale Trustless Data Trading Scheme for Blockchain System
Xiang Liu, Zhanpeng Guo, Liangxi Liu, Mengyao Zheng, Yiming Qiu, Linshan Jiang
https://arxiv.org/abs/2506.19368

Yotta: A Large-Scale Trustless Data Trading Scheme for Blockchain System
Data trading is one of the key focuses of Web 3.0. However, all the current methods that rely on blockchain-based smart contracts for data exchange cannot support large-scale data trading while ensuring data security, which falls short of fulfilling the spirit of Web 3.0. Even worse, there is currently a lack of discussion on the essential properties that large-scale data trading should satisfy. In this work, we are the first to formalize the property requirements for enabling data trading in W…

The US Treasury sanctions three senior North Korean officials accused of tricking companies into hiring North Koreans using stolen identities as IT workers (Jonathan Greig/The Record)
https://therecord.media/us-sanctions-north-korean-officers-it-worker-scheme

US hits senior North Korean officials with sanctions, $3 million bounties
Kim Se Un, Jo Kyong Hun and Myong Chol Min are accused of helping North Korea evade U.S. and United Nations sanctions through an IT worker plot that involved tricking companies into hiring North Koreans using stolen identities.

Encrypted-State Quantum Compilation Scheme Based on Quantum Circuit Obfuscation
Chenyi Zhang, Tao Shang, Xueyi Guo
https://arxiv.org/abs/2507.17589 https://

Encrypted-State Quantum Compilation Scheme Based on Quantum Circuit Obfuscation
With the rapid advancement of quantum computing, quantum compilation has become a crucial layer connecting high-level algorithms with physical hardware. In quantum cloud computing, compilation is performed on the cloud side, which exposes user circuits to potential risks such as structural leakage and output predictability. To address these issues, we propose the encrypted-state quantum compilation scheme based on quantum circuit obfuscation (ECQCO), the first secure compilation framework tailo…

We are in a crisis.
Texas Republicans have thrown out every political norm and launched a mid-year redistricting scheme
—something we’ve never seen before,
all to carve out more seats for Mike Johnson and protect Donald Trump.
At the same time, ICE is carrying out masked raids in neighborhoods across America,
and Trump has already deployed the military to two U.S. cities.
If you think he’ll stop there, you haven’t been paying attention.
The signs of …

Donate to Terry Virts
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Louisiana police chiefs among those arrested and accused in a bribery scheme to help foreign nationals get visas.
https://www.cnn.com/2025/07/16/us/louisiana-police-chiefs-arrested-bribery-scheme

Louisiana police chiefs among those arrested and accused in a bribery scheme to help foreign nationals get visas
A group of current or former Louisiana police chiefs and the operator of a Subway sandwich shop are accused of colluding in a decade-long scheme to falsify police reports to help foreign nationals get visas meant for crime victims or witnesses.

On Grauert-Riemenschneider vanishing for Cohen-Macaulay schemes of klt type
Jefferson Baudin, Tatsuro Kawakami, Linus R\"osler
https://arxiv.org/abs/2506.21381

On Grauert-Riemenschneider vanishing for Cohen-Macaulay schemes of klt type
Given a Cohen-Macaulay scheme of klt type $X$ and a resolution $π\colon Y\to X$, we show that $R^1π_*ω_Y=0$. We deduce that if $\mathrm{dim}(X)=3$, then $X$ satisfies Grauert-Riemenschneider vanishing and therefore has rational singularities. We also obtain that in arbitrary dimension, if $X$ is of finite type over a perfect field of characteristic $p>0$, then $X$ has $\mathbb{Q}_p$-rational singularities.

Towards Understanding Decision Problems As a Goal of Visualization Design
Lena Cibulski, Stefan Bruckner
https://arxiv.org/abs/2507.18428 https://arxiv.org…

Towards Understanding Decision Problems As a Goal of Visualization Design
Decision-making is a central yet under-defined goal in visualization research. While existing task models address decision processes, they often neglect the conditions framing a decision. To better support decision-making tasks, we propose a characterization scheme that describes decision problems through key properties of the data, users, and task context. This scheme helps visualization researchers specify decision-support claims more precisely and informs the design of appropriate visual enc…

from my link log —
Optimizing programs written in Guile Scheme.
https://dthompson.us/posts/optimizing-guile-scheme.html
saved 2025-05-02

Stabilization of Parabolic Time-Varying PDEs using Certified Reduced-Order Receding Horizon Control
Behzad Azmi, Michael Kartmann, Stefan Volkwein
https://arxiv.org/abs/2508.16801

Stabilization of Parabolic Time-Varying PDEs using Certified Reduced-Order Receding Horizon Control
We address the stabilization of linear, time-varying parabolic PDEs using finite-dimensional receding horizon controls (RHCs) derived from reduced-order models (ROMs). We first prove exponential stability and suboptimality of the continuous-time full-order model (FOM) RHC scheme in Hilbert spaces. A Galerkin model reduction is then introduced, along with a rigorous a posteriori error analysis for the associated finite-horizon optimal control problems. This results in a ROM-based RHC algorithm t…

A Scenario-based Model Predictive Control Scheme for Pandemic Response through Non-pharmaceutical Interventions
Domagoj Herceg, Marco DellOro, Riccardo Bertollo, Fuminari Miura, Paul de Klaver, Valentina Breschi, Dinesh Krishnamoorthy, Mauro Salazar
https://arxiv.org/abs/2506.17972

A Scenario-based Model Predictive Control Scheme for Pandemic Response through Non-pharmaceutical Interventions
This paper presents a scenario-based model predictive control (MPC) scheme designed to control an evolving pandemic via non-pharmaceutical intervention (NPIs). The proposed approach combines predictions of possible pandemic evolution to decide on a level of severity of NPIs to be implemented over multiple weeks to maintain hospital pressure below a prescribed threshold, while minimizing their impact on society. Specifically, we first introduce a compartmental model which divides the population …

Enhanced Velocity-Adaptive Scheme: Joint Fair Access and Age of Information Optimization in Vehicular Networks
Xiao Xu, Qiong Wu, Pingyi Fan, Kezhi Wang, Nan Cheng, Wen Chen, Khaled B. Letaief
https://arxiv.org/abs/2507.18328

Enhanced Velocity-Adaptive Scheme: Joint Fair Access and Age of Information Optimization in Vehicular Networks
In this paper, we consider the fair access problem and the Age of Information (AoI) under 5G New Radio (NR) Vehicle-to-Infrastructure (V2I) Mode 2 in vehicular networks. Specifically, vehicles follow Mode 2 to communicate with Roadside Units (RSUs) to obtain accurate data for driving assistance.Nevertheless, vehicles often have different velocity when they are moving in adjacent lanes, leading to difference in RSU dwelltime and communication duration. This results in unfair access to network re…

Some new properties of the PamPa scheme
R\'emi Abgrall, Philipp \"Offner, Yongle Liu
https://arxiv.org/abs/2508.17147 https://arxiv.org/pdf/2508.1…

Some new properties of the PamPa scheme
In this paper, we provide a few new properties of Active Flux (AF)/Point-Average-Moment PolynomiAl-interpreted (PAMPA) schemes. First, we show, in full generality, that the Active Flux (AF)/Point-Average-Moment PolynomiAl-interpreted (PAMPA) schemes can be interpreted in such a way that the discontinuous Galerkin (dG) scheme is one of their building blocks. Secondly we provide some intrinsic bound preserving properties. This is also illustrated numericaly. Last, we show, at least in one dimensi…

🧮 CBEX crypto scam: AI-hyped Ponzi scheme defrauds African investors
#scam

CBEX crypto scam: AI-hyped Ponzi scheme defrauds African investors
Embarrassed and in debt, Edwin was left reeling after losing $16,000 to CryptoBridge Exchange (CBEX), one of the crypto-trading platforms preying on investors in Africa.

The $n$-body problem -- an alternative scheme for determining solutions for planetary systems
Pawel Wojda
https://arxiv.org/abs/2507.17414 https://arxiv.or…

The $n$-body problem -- an alternative scheme for determining solutions for planetary systems
This study presents a general alternative scheme of the procedure and necessary conditions for solving the $n$-body problem. The presented solution is not a solution of the classical problem, where the initial conditions of positions and initial velocities/momenta of the bodies are known. Starting from the standard initial condition the procedure treats contributions to momentum from particular pair-wise interactions as independent variables from which the total momentum and velocity of a given…

Single-photon loading of polar molecules into an optical trap
Bart J. Schellenberg, Eifion H. Prinsen, Janko Nauta, Luk\'a\v{s} F. Pa\v{s}teka, Anastasia Borschevsky, Steven Hoekstra
https://arxiv.org/abs/2507.17521 https://arxiv.org/pdf/2507.17521 https://arxiv.org/html/2507.17521
arXiv:2507.17521v1 Announce Type: new
Abstract: We propose a scheme to transfer molecules from a slow beam into an optical trap using only a single photon absorption and emission cycle. The efficiency of such a scheme is numerically explored for BaF using realistic experimental parameters. The technique makes use of the state-dependent potential in an external electric field to trap molecules from an initial velocity of order 10m/s. A rapid optical transition at the point where the molecules come to a standstill in the electric field potential irreversibly transfers them into a ~7mK optical dipole trap. For a pulsed Stark decelerated beam, we estimated the per-shot efficiency to be ~0.04% or up to ~103 molecules, with a potential factor 20 improvement when the fields are synchronously modulated with the arriving velocity components. The irreversibility of the scheme allows for larger numbers to be built up over time. Since this scheme does not rely on a closed cycling transition for laser cooling, it broadens the range of molecules that can be used for research on cold molecular chemistry, quantum information, and fundamental interactions in optical traps.
toXiv_bot_toot

“It is a cruel joke that taxpayers who could never dream of sending their own kids to such superbly well-resourced schools are indirectly subsidising those that can,” said Matthew Wade, a sociologist at La Trobe University who has studied the scheme for years.
“We should all be offended by witnessing something so manifestly unfair continue unabated.”

Precise Near-Field Beam Training with DFT Codebook based on Amplitude-only Measurement
Zijun Wang, Shawn Tsai, Rama Kiran, Rui Zhang
https://arxiv.org/abs/2506.20783

Precise Near-Field Beam Training with DFT Codebook based on Amplitude-only Measurement
Extremely large antenna arrays (ELAAs) operating in high-frequency bands have spurred the development of near-field communication, driving advancements in beam training and signal processing design. In this work, we present a low-complexity near-field beam training scheme that fully utilizes the conventional discrete Fourier transform (DFT) codebook designed for far-field users. We begin by analyzing the received beam pattern in the near field and derive closed-form expressions for the beam wid…

Discovery of a new transitional type of evolved massive stars with hard ionizing flux
Andreas A. C. Sander, Roel R. Lefever, Joris Josiek, Erin R. Higgins, Raphael Hirschi, Lidia M. Oskinova, Daniel Pauli, Max Pritzkuleit, John S. Gallagher, Wolf-Rainer Hamann, Ilya Mandel, Varsha Ramachandran, Tomer Shenar, Helge Todt, Jorick S. Vink
https://

Discovery of a new transitional type of evolved massive stars with hard ionizing flux
Wolf-Rayet (WR) stars are the evolved descendants of the most massive stars and show emission-line dominated spectra formed in their powerful stellar winds. Marking the final evolution stage before core collapse, the standard picture of WR stars has been that they evolve through three well-defined spectral subtypes known as WN, WC, and WO. Here, we present a detailed analysis of five objects that defy this scheme, demonstrating that WR stars can also evolve directly from the WN to the WO stage.…

Numerical Simulation for General Relativistic Magnetohydrodynamics in Dynamic Spacetimes
Beibei Li
https://arxiv.org/abs/2508.18221 https://arxiv.org/pdf/2…

Numerical Simulation for General Relativistic Magnetohydrodynamics in Dynamic Spacetimes
We present a novel spectral solver for general relativistic magnetohydrodynamics on dynamical spacetimes. By combining a high order discontinuous spectral method on mapped Chebyshev Fourier grids, our scheme attains exponential convergence. Implemented within a unified BSSN Valencia framework, the code evolves both Einstein and MHD fields self consistently, enabling fully coupled simulations of black hole accretion jet systems. We demonstrate spectral accuracy and entropy stability through conv…

"A solar panel recycling scheme would help reduce waste, but please repair and reuse first"
#SolarPower #Energy #Renewables

A solar panel recycling scheme would help reduce waste, but please repair and reuse first
Older rooftop solar systems are being scrapped – often well before the end of their useful life. Establishing a product stewardship scheme is part of the solution.

On an Iterative Scheme for the Spinorial Yamabe Equation on Manifolds with Boundary
Eric Tr\'ebuchon
https://arxiv.org/abs/2506.18546 https://

On an Iterative Scheme for the Spinorial Yamabe Equation on Manifolds with Boundary
We study the existence of solutions to the spinorial Yamabe equation -- that is, the Euler--Lagrange equation associated with the conformal invariant introduced by S. Raulot -- for compact manifolds with boundary. For the inhomogeneous equation, we employ an iterative scheme to establish existence under smallness assumptions on the relevant parameters. Using bootstrapping methods, we extend the regularity of the solution to $C^\infty$ away from its zero set in the interior, and up to the bounda…

Computational study of alpha-ray induced electron excitation in diamonds for radiation detection
Atsuhiro Umemoto, Yoshiyuki Miyamoto
https://arxiv.org/abs/2508.18319 https://…

Computational study of alpha-ray induced electron excitation in diamonds for radiation detection
To investigate the mechanism of radiation detection in diamonds, we developed a real time time dependent density functional theory based calculation scheme to evaluate changes in the density of states induced by alpha ray irradiation. A bulk diamond structural model was constructed, with impurities optionally introduced to assess their effect on electronic excitation. Simulations revealed that the passage of high speed helium ions, representing alpha particles, produced significant electronic e…

This is a great piece of journalism. An absolute must-read.
Confessions of a Laptop Farmer: How an American Helped North Korea’s Wild Remote Worker Scheme
https://www.bloomberg.com/news/features/2025-07-24/north-korea-infilt…

Maximal Counts in the Stopped Occupancy Problem
Alexander Gnedin, Svante Janson, Yaakov Malinovsky
https://arxiv.org/abs/2506.20411 https://

Maximal Counts in the Stopped Occupancy Problem
We revisit a version of the classic occupancy scheme, where balls are thrown until almost all boxes receive a given number of balls. Special cases are widely known as coupon-collectors and dixie cup problems. We show that as the number of boxes tends to infinity, the distribution of the maximal occupancy count does not converge, but can be approximated by a convolution of two Gumbel distributions, with the approximating distribution having oscillations close to periodic on a logarithmic scale. …

A Unifying Scheme for Extractive Content Selection Tasks
Shmuel Amar, Ori Shapira, Aviv Slobodkin, Ido Dagan
https://arxiv.org/abs/2507.16922 https://

A Unifying Scheme for Extractive Content Selection Tasks
A broad range of NLP tasks involve selecting relevant text spans from given source texts. Despite this shared objective, such \textit{content selection} tasks have traditionally been studied in isolation, each with its own modeling approaches, datasets, and evaluation metrics. In this work, we propose \textit{instruction-guided content selection (IGCS)} as a beneficial unified framework for such settings, where the task definition and any instance-specific request are encapsulated as instructio…

Speed of sound peak in isospin QCD: a natural prediction of the Medium Separation Scheme
Bruno S. Lopes, Dyana C. Duarte, Ricardo L. S. Farias, Rudnei O. Ramos
https://arxiv.org/abs/2507.14343

Speed of sound peak in isospin QCD: a natural prediction of the Medium Separation Scheme
We present predictions for the zero-temperature equation of state at finite isospin density using the Nambu--Jona-Lasinio (NJL) model within the Medium Separation Scheme (MSS) -- a scheme that explicitly disentangles medium effects from the ultraviolet divergent vacuum terms. Recent lattice QCD results reveal a nonmonotonic speed of sound ($c_s^2$) as a function of isospin chemical potential ($μ_I$), exhibiting explicit violation of the conformal bound $c_s^2 = 1/3$. These findings have attrac…

Affine invariant interacting Langevin dynamics in Markov chain importance sampling for rare event estimation
Jason Beh, J\'er\^ome Morio, Florian Simatos, Simon Weissmann
https://arxiv.org/abs/2506.20185

Affine invariant interacting Langevin dynamics in Markov chain importance sampling for rare event estimation
This work considers the framework of Markov chain importance sampling~(MCIS), in which one employs a Markov chain Monte Carlo~(MCMC) scheme to sample particles approaching the optimal distribution for importance sampling, prior to estimating the quantity of interest through importance sampling. In rare event estimation, the optimal distribution admits a non-differentiable log-density, thus gradient-based MCMC can only target a smooth approximation of the optimal density. We propose a new gradie…

Replaced article(s) found for physics.ao-ph. https://arxiv.org/list/physics.ao-ph/new
[1/1]:
- Impact of curved elements for flows over orography with a Discontinuous Galerkin scheme
Giuseppe Orlando, Tommaso Benacchio, Luca Bonaventura

A predictor-corrector scheme for approximating signed distances using finite element methods
Amina El Bachari, Johann Rannou, Vladislav A. Yastrebov, Pierre Kerfriden, Susanne Claus
https://arxiv.org/abs/2506.17830

A predictor-corrector scheme for approximating signed distances using finite element methods
In this article, we introduce a finite element method designed for the robust computation of approximate signed distance functions to arbitrary boundaries in two and three dimensions. Our method employs a novel prediction-correction approach, involving first the solution of a linear diffusion-based prediction problem, followed by a nonlinear minimization-based correction problem associated with the Eikonal equation. The prediction step efficiently generates a suitable initial guess, significant…

Higher-Dimensional Chirally Stabilized Fixed Points and Their Deformations
Aleksandar Ljepoja, L. C. R. Wijewardhana, Yashar Komijani
https://arxiv.org/abs/2508.18373 https://…

Higher-Dimensional Chirally Stabilized Fixed Points and Their Deformations
Non-Fermi liquids in $d>2$ remain poorly understood, particularly when relevant perturbations destabilize them. In one spatial dimension, chirally stabilized fixed points provide a rare class of analytically tractable non-Fermi-liquid critical points, but their higher-dimensional analogues have been elusive. Here, we develop a Wilsonian operator-product-expansion renormalization group scheme that captures power-divergent terms and use it to construct finite-$N$ higher-dimensional analogues of c…

Two-mode hyperradiant lasing in a system of two quantum dots embedded in a bimodal photonic crystal cavity
Lavakumar Addepalli, P. K. Pathak
https://arxiv.org/abs/2506.21202

Two-mode hyperradiant lasing in a system of two quantum dots embedded in a bimodal photonic crystal cavity
We propose a scheme for two-mode hyperradiant lasing in a system comprising two incoherently pumped quantum dots (QDs) coupled to a bimodal photonic crystal cavity. To account for the exciton-phonon interactions, we employ a time-convolutionless polaron-transformed master equation. Both resonant and off-resonant couplings of the QDs to the cavity modes are considered, and we analyze the resulting radiance witness as well as the intra- and inter-mode photon correlations. Furthermore, we demonstr…

A Deep Convolutional Neural Network-Based Novel Class Balancing for Imbalance Data Segmentation
Atifa Kalsoom, M. A. Iftikhar, Amjad Ali, Zubair Shah, Shidin Balakrishnan, Hazrat Ali
https://arxiv.org/abs/2506.18474

A Deep Convolutional Neural Network-Based Novel Class Balancing for Imbalance Data Segmentation
Retinal fundus images provide valuable insights into the human eye's interior structure and crucial features, such as blood vessels, optic disk, macula, and fovea. However, accurate segmentation of retinal blood vessels can be challenging due to imbalanced data distribution and varying vessel thickness. In this paper, we propose BLCB-CNN, a novel pipeline based on deep learning and bi-level class balancing scheme to achieve vessel segmentation in retinal fundus images. The BLCB-CNN scheme uses …

How to Copy-Protect Malleable-Puncturable Cryptographic Functionalities Under Arbitrary Challenge Distributions
Alper \c{C}akan, Vipul Goyal
https://arxiv.org/abs/2507.19032 htt…

How to Copy-Protect Malleable-Puncturable Cryptographic Functionalities Under Arbitrary Challenge Distributions
A quantum copy-protection scheme (Aaronson, CCC 2009) encodes a functionality into a quantum state such that given this state, no efficient adversary can create two (possibly entangled) quantum states that are both capable of running the functionality. There has been a recent line of works on constructing provably-secure copy-protection schemes for general classes of schemes in the plain model, and most recently the recent work of Çakan and Goyal (IACR Eprint, 2025) showed how to copy-protect …

Replaced article(s) found for q-fin.CP. https://arxiv.org/list/q-fin.CP/new
[1/1]:
- The Euler Scheme for Fractional Stochastic Delay Differential Equations with Additive Noise
Orimar Sauri

New Weapons and Scheme Make Raiders a Mystery https://www.si.com/nfl/raiders/las-vegas-jack-bech-asthon-jeanty-pete-carroll-chip-kelly

Feedback cooling scheme for an optically levitated oscillator with controlled cross-talk
J. M. H. Gosling, A. Pontin, F. Alder, M. Rademacher, T. S. Monteiro, P. F. Barker
https://arxiv.org/abs/2506.17172

Feedback cooling scheme for an optically levitated oscillator with controlled cross-talk
Levitated optical mechanical systems have demonstrated excellent force and impulse sensitivity and are currently being developed for the creation of non-classical states of motion in these new quantum systems. An important requirement in the design of these systems is the ability to independently control and cool all three translational degrees of freedom. Here we describe the design and implementation of a stable and robust 3D velocity feedback cooling scheme with particular emphasis on creati…

Through the fog: a complementary optical galaxy classification scheme for 'intermediate' redshifts
Duarte Mu\~noz Santos, Cirino Pappalardo, Henrique Miranda, Jos\'e Afonso, Israel Matute, Rodrigo Carvajal, Catarina Lobo, Patricio Lagos, Polychronis Papaderos, Ana Paulino-Afonso, Abhishek Chougule, Davi Barbosa, Bruno Louren\c{c}o
https:/…

Through the fog: a complementary optical galaxy classification scheme for 'intermediate' redshifts
Understanding galaxy classification depends on our interpretation of their spectra. To date, the hydrogen Balmer lines remain the most consistent way to classify galaxies, but at 'intermediate' redshifts ($1.5 < z < 2.5$), galaxies are hard to parse in the BPT diagram (and its siblings) because the crucial H$α$ emission line is out of range of ground-based optical spectographs. In this work, we re-explore a known diagram, which we call the OB-I diagram, that compares the equivalent width of H$…

Automorphisms of punctual Hilbert schemes and symmetric powers of varieties
Ashima Bansal, Supravat Sarkar, Shivam Vats
https://arxiv.org/abs/2508.18059 https://

Automorphisms of punctual Hilbert schemes and symmetric powers of varieties
We classify complex smooth projective surfaces whose punctual Hilbert scheme has a non-natural automorphism preserving the big diagonal. This completely answers a question raised by Belmans, Oberdieck and Rennemo, and extends previous works by Boissi{è}re-Sarti, Hayashi, Sasaki, Girardet and Wang. We reduce this to studying the existence of non-natural automorphisms of symmetric powers. We study this question for higher dimensional varieties too, giving some sufficient conditions guaranteeing …

Replaced article(s) found for q-fin.MF. https://arxiv.org/list/q-fin.MF/new
[1/1]:
- The Euler Scheme for Fractional Stochastic Delay Differential Equations with Additive Noise
Orimar Sauri

Ferrexpo's Ukrainian mining subsidiary executive charged with $41 million tax evasion scheme: https://benborges.xyz/2025/07/18/ferrexpos-ukrainian-mining-subsidiary-executive.html

Convection in a Rapidly Rotating Spherical Shell: Newton's Method Using Implicit Coriolis Integration
Juan Cruz Gonzalez Sembla, Camille Rambert, Fred Feudel, Laurette S. Tuckerman
https://arxiv.org/abs/2508.16635

Convection in a Rapidly Rotating Spherical Shell: Newton's Method Using Implicit Coriolis Integration
Geophysical flows are characterized by rapid rotation. Simulating these flows requires small timesteps to achieve stability and accuracy. Numerical stability can be greatly improved by the implicit integration of the terms that are most responsible for destabilizing the numerical scheme. We have implemented an implicit treatment of the Coriolis force in a rotating spherical shell driven by a radial thermal gradient. We modified the resulting timestepping code to carry out steady-state solving v…

Four Loop Renormalisation Group Equations in general Gross-Neveu-Yukawa Theories
Tom Steudtner
https://arxiv.org/abs/2507.18710 https://arxiv.org/pdf/2507.…

Four Loop Renormalisation Group Equations in general Gross-Neveu-Yukawa Theories
We compute template formulae of all four-loop $β$-functions and anomalous dimensions of arbitrary renormalisable quantum field theories with fermions and scalar fields in the $\overline{\text{MS}}$ scheme. Using these results, novel contributions to the $β$-functions of the Higgs and top coupling are extracted. We discuss how four loops present a challenge to dimensional continuation from four to three dimensions and propose a solution.

An adaptive scheme for the optimization of damping positions by decoupling controllability spaces in vibrational systems
Jennifer Przybilla, Matea Ugrica Vukojevi\'c, Ninolsav Truhar, Peter Benner
https://arxiv.org/abs/2506.20372

An adaptive scheme for the optimization of damping positions by decoupling controllability spaces in vibrational systems
In this work, the problem of optimizing damper positions in vibrational systems is investigated. The objective is to determine the positions of external dampers in such a way that the influence of the input on the output is minimized. The energy response serves as an optimization criterion, whose computation involves solving Lyapunov equations. Hence, in order to find the best positions, many of these equations need to be solved, and so the minimization process can have a high computational cos…

US hits senior North Korean officials with sanctions, $3 million bounties https://therecord.media/us-sanctions-north-korean-officers-it-worker-scheme

Christina Marie Chapman, who pleaded guilty and was sentenced to prison for aiding a North Korean remote IT worker scheme, details her time as a "laptop farmer" (Evan Ratliff/Bloomberg)

Near-Field Integrated Imaging and Communication in Distributed MIMO Networks
Kangda Zhi, Tianyu Yang, Shuangyang Li, Yi Song, Amir Rezaei, Giuseppe Caire
https://arxiv.org/abs/2508.17526

Near-Field Integrated Imaging and Communication in Distributed MIMO Networks
In this work, we propose a general framework for wireless imaging in distributed MIMO wideband communication systems, considering multi-view non-isotropic targets and near-field propagation effects. For indoor scenarios where the objective is to image small-scale objects with high resolution, we propose a range migration algorithm (RMA)-based scheme using three kinds of array architectures: the full array, boundary array, and distributed boundary array. With non-isotropic near-field channels, w…

Drift-Adaptive Slicing-Based Resource Management for Cooperative ISAC Networks
Shisheng Hu, Jie Gao, Xue Qin, Conghao Zhou, Xinyu Huang, Mushu Li, Mingcheng He, Xuemin Shen
https://arxiv.org/abs/2506.20762

Drift-Adaptive Slicing-Based Resource Management for Cooperative ISAC Networks
In this paper, we propose a novel drift-adaptive slicing-based resource management scheme for cooperative integrated sensing and communication (ISAC) networks. Particularly, we establish two network slices to provide sensing and communication services, respectively. In the large-timescale planning for the slices, we partition the sensing region of interest (RoI) of each mobile device and reserve network resources accordingly, facilitating low-complexity distance-based sensing target assignment …

Mailbag: Differences in defensive scheme? https://www.dallascowboys.com/news/mailbag-differences-in-defensive-scheme

CASPER: Contrastive Approach for Smart Ponzi Scheme Detecter with More Negative Samples
Weijia Yang, Tian Lan, Leyuan Liu, Wei Chen, Tianqing Zhu, Sheng Wen, Xiaosong Zhang
https://arxiv.org/abs/2507.16840

CASPER: Contrastive Approach for Smart Ponzi Scheme Detecter with More Negative Samples
The rapid evolution of digital currency trading, fueled by the integration of blockchain technology, has led to both innovation and the emergence of smart Ponzi schemes. A smart Ponzi scheme is a fraudulent investment operation in smart contract that uses funds from new investors to pay returns to earlier investors. Traditional Ponzi scheme detection methods based on deep learning typically rely on fully supervised models, which require large amounts of labeled data. However, such data is often…

Amplifying Two-Mode Squeezing in Nanomechanical Resonators
Muhdin Abdo Wodedo, Tesfay Gebremariam Tesfahannes, Tewodros Yirgashewa Darge, Mauro Pereira, Berihu Teklu
https://arxiv.org/abs/2508.18972

Amplifying Two-Mode Squeezing in Nanomechanical Resonators
Quantum squeezing plays a crucial role in enhancing the precision of quantum metrology and improving the efficiency of quantum information processing protocols. We thus propose a scheme to amplify two-mode squeezing in nanomechanical resonators, harnessing parametric amplification and two-tone laser controls. The red-detuned laser drives facilitate the cooling of the nanomechanical resonators down to their ground state and allow optimal quantum state transfer in the weak-coupling, resolved side…

Block Tensor Decomposition: A dual grid scheme with formal O(N3) for THC decomposition of molecular systems
Yueyang Zhang, Xuewei Xiong, Wei Wu, Peifeng Su
https://arxiv.org/abs/2506.19392

Block Tensor Decomposition: A dual grid scheme with formal O(N3) for THC decomposition of molecular systems
Accurate and fast treatment of electron-electron interactions remains a central challenge in electronic structure theory because post-Hartree-Fock methods often suffered from the computational cost for 4-index electron repulsion integrals (ERIs). Low-rank approaches such as tensor hyper-contraction (THC) and interpolative separable density fitting (ISDF) have been proposed for Hartree-Fock exchange and correlation's calculations. Their application to molecular systems remains inefficient due to…

Algebraic Magnetism Invariants of Self-Actions of Diagonalizable Monoid Schemes
Arnaud Mayeux
https://arxiv.org/abs/2508.17793 https://arxiv.org/pdf/2508.1…

Algebraic Magnetism Invariants of Self-Actions of Diagonalizable Monoid Schemes
We provide a method to compute the pure magnets of the action of a diagonalizable monoid scheme on itself. This is described in terms of minimal generators of the sharp monoid obtained quotienting by the face of invertible elements. In particular, in this example, algebraic magnetism detects sharpness and minimal generators of the monoid modulo invertible elements.

Trump Tax Bill Bails Out Private Equity's Layoff Scheme (Luke Goldstein/The Lever)
https://www.levernews.com/trump-tax-bill-bails-out-private-equitys-layoff-scheme/
http://www.memeorandum.com/250619/p132#a250619p132

Robust Alignment via Partial Gromov-Wasserstein Distances
Xiaoyun Gong, Sloan Nietert, Ziv Goldfeld
https://arxiv.org/abs/2506.21507 https://

Robust Alignment via Partial Gromov-Wasserstein Distances
The Gromov-Wasserstein (GW) problem provides a powerful framework for aligning heterogeneous datasets by matching their internal structures in a way that minimizes distortion. However, GW alignment is sensitive to data contamination by outliers, which can greatly distort the resulting matching scheme. To address this issue, we study robust GW alignment, where upon observing contaminated versions of the clean data distributions, our goal is to accurately estimate the GW alignment cost between th…

Every newborn baby in England will have their DNA mapped to assess their risk of hundreds of diseases, under NHS plans for the next 10 years.
The scheme, first reported by the Daily Telegraph, is part of a government drive towards predicting and preventing illness, which will also see £650m invested in DNA research for all patients by 2030.
Health Secretary Wes Streeting said gene technology would enable the health service to "leapfrog disease, so we're in front of it ra…

NHS plans to DNA test all babies in England to assess disease risk
Scheme is part of the government's 10-year plan for the NHS in England aimed at easing pressure on services.

Numerical Integration of stochastic differential equations: The Heun Algorithm Revisited and It\^o-Stratonovich Calculus
Riccardo Mannella
https://arxiv.org/abs/2508.19040 https…

Numerical Integration of stochastic differential equations: The Heun Algorithm Revisited and Itô-Stratonovich Calculus
The widely used Heun algorithm for the numerical integration of stochastic differential equations (SDEs) is critically re-examined. We discuss and evaluate several alternative implementations, motivated by the fact that the standard Heun scheme is constructed from a low-order integrator. The convergence, stability, and equilibrium properties of these alternatives are assessed through extensive numerical simulations. Our results confirm that the standard Heun scheme remains a benchmark integrati…

Mailbag: Differences in defensive scheme? https://www.dallascowboys.com/news/mailbag-differences-in-defensive-scheme

A website developed for the UK Home Office's 2022 "flop" anti-encryption campaign has seemingly been hijacked to push a payday loan scheme.
https://www.theregister.com/2025/06/25/home_office_antiencryption_campaign_website/?m…

UK govt dept website that campaigns against encryption hijacked to advertise ... payday loans
: Company at center of findings blamed SEO on outsourcer

Cooling of an optically levitated nanoparticle via measurement-free coherent feedback
Bruno Melo, Daniel Veldhuizen, Gregoire F. M. Tomassi, Nadine Meyer, Romain Quidant
https://arxiv.org/abs/2506.21341

Cooling of an optically levitated nanoparticle via measurement-free coherent feedback
We demonstrate coherent, measurement-free optical feedback control of a levitated nanoparticle, achieving phonon occupations down to a few hundred phonons. Unlike measurement-based feedback, this all-optical scheme preserves the correlations between mechanical motion and the feedback signal. Adjustment of the feedback phase and delay provides precise and tunable control over the system dynamics. The ultimate cooling performance is currently limited by phase noise, which we analyze within a theo…

A Fisher's exact test justification of the TF-IDF term-weighting scheme
Paul Sheridan, Zeyad Ahmed, Aitazaz A. Farooque
https://arxiv.org/abs/2507.15742

A Fisher's exact test justification of the TF-IDF term-weighting scheme
Term frequency-inverse document frequency, or TF-IDF for short, is arguably the most celebrated mathematical expression in the history of information retrieval. Conceived as a simple heuristic quantifying the extent to which a given term's occurrences are concentrated in any one given document out of many, TF-IDF and its many variants are routinely used as term-weighting schemes in diverse text analysis applications. There is a growing body of scholarship dedicated to placing TF-IDF on a sound …

OLALa: Online Learned Adaptive Lattice Codes for Heterogeneous Federated Learning
Natalie Lang, Maya Simhi, Nir Shlezinger
https://arxiv.org/abs/2506.20297

OLALa: Online Learned Adaptive Lattice Codes for Heterogeneous Federated Learning
Federated learning (FL) enables collaborative training across distributed clients without sharing raw data, often at the cost of substantial communication overhead induced by transmitting high-dimensional model updates. This overhead can be alleviated by having the clients quantize their model updates, with dithered lattice quantizers identified as an attractive scheme due to its structural simplicity and convergence-preserving properties. However, existing lattice-based FL schemes typically re…

SyncGuard: Robust Audio Watermarking Capable of Countering Desynchronization Attacks
Zhenliang Gan, Xiaoxiao Hu, Sheng Li, Zhenxing Qian, Xinpeng Zhang
https://arxiv.org/abs/2508.17121

SyncGuard: Robust Audio Watermarking Capable of Countering Desynchronization Attacks
Audio watermarking has been widely applied in copyright protection and source tracing. However, due to the inherent characteristics of audio signals, watermark localization and resistance to desynchronization attacks remain significant challenges. In this paper, we propose a learning-based scheme named SyncGuard to address these challenges. Specifically, we design a frame-wise broadcast embedding strategy to embed the watermark in arbitrary-length audio, enhancing time-independence and eliminat…

'He's more of a player's guy, not a plays guy': Chip Kelly's offense gives flexibility to players https://www.raiders.com/news/chip-kelly-allowing-flexibility-to-place-players-in-advantageous-situations

Higher direct images of dualizing sheaves III
J\'anos Koll\'ar, S\'andor J. Kov\'acs
https://arxiv.org/abs/2508.16507 https://arxiv.org/pdf…

Higher direct images of dualizing sheaves III
We show that for flat morphisms between varieties with rational singularities, the higher direct images of the structure sheaf are locally free. As a consequence, the identity component of the relative Picard scheme is a smooth algebraic group scheme.

Entropy-stable in- and outflow boundary conditions for the compressible Navier-Stokes equations
Magnus Sv\"ard, Anita Gjesteland
https://arxiv.org/abs/2506.21065

Entropy-stable in- and outflow boundary conditions for the compressible Navier-Stokes equations
We propose inflow and outflow boundary conditions for the compressible Navier-Stokes equations and prove that they allow a priori estimates of the entropy, mass and total energy. Furthermore, we demonstrate how to approximate these boundary conditions in conjunction with an entropy-stable finite-volume scheme. The method is also applicable to other types of entropy-stable schemes. Finally, we carry out some numerical computations with the finite-volume scheme and demonstrate their robustness.

An Arizona woman was sentenced to more than 8 years in prison for helping North Korean workers obtain remote jobs at U.S. companies
https://www.washingtonpost.com/nation/2025/07/25/north-korean-remote-workers-fraud-christina-chapman/

Arizona woman sentenced over $17 million North Korea worker fraud scheme
Christina Chapman helped North Koreans obtain remote jobs at U.S. companies under false identities, operating a “laptop farm” that funneled money to Pyongyang.

Entanglement Detection with Quantum-inspired Kernels and SVMs
Ana Mart\'inez-Sabiote, Michalis Skotiniotis, Jara J. Bermejo-Vega, Daniel Manzano, Carlos Cano
https://arxiv.org/abs/2508.17909

Entanglement Detection with Quantum-inspired Kernels and SVMs
This work presents a machine learning approach based on support vector machines (SVMs) for quantum entanglement detection. Particularly, we focus in bipartite systems of dimensions 3x3, 4x4, and 5x5, where the positive partial transpose criterion (PPT) provides only partial characterization. Using SVMs with quantum-inspired kernels we develop a classification scheme that distinguishes between separable states, PPT-detectable entangled states, and entangled states that evade PPT detection. Our m…

Reducing the Cost of Energy Differences in Variational Monte Carlo with Spotlight Sampling
Sonja Bumann, Eric Neuscamman
https://arxiv.org/abs/2507.18930 https://

Reducing the Cost of Energy Differences in Variational Monte Carlo with Spotlight Sampling
We investigate an approximate sampling scheme that can significantly reduce the cost scaling of variational Monte Carlo when it is employed to predict the energy differences associated with local chemical changes. Inspired by side-chaining and embedding methods, this spotlight sampling approach adopts an approximate fragmented Hamiltonian and correlated sampling to reduce cost scaling to the point that it is essentially linear with system size, with the potential to go sub-linear if certain con…

Secure Multi-Key Homomorphic Encryption with Application to Privacy-Preserving Federated Learning
Jiahui Wu, Tiecheng Sun, Fucai Luo, Haiyan Wang, Weizhe Zhang
https://arxiv.org/abs/2506.20101

Secure Multi-Key Homomorphic Encryption with Application to Privacy-Preserving Federated Learning
Multi-Key Homomorphic Encryption (MKHE), proposed by Lopez-Alt et al. (STOC 2012), allows for performing arithmetic computations directly on ciphertexts encrypted under distinct keys. Subsequent works by Chen and Dai et al. (CCS 2019) and Kim and Song et al. (CCS 2023) extended this concept by proposing multi-key BFV/CKKS variants, referred to as the CDKS scheme. These variants incorporate asymptotically optimal techniques to facilitate secure computation across multiple data providers. In this…

Renormalization group for effective field theories: cutoff schemes and universality
Jose Gaite
https://arxiv.org/abs/2507.17573 https://arxiv.org/pdf/2507.…

Renormalization group for effective field theories: cutoff schemes and universality
In effective field theories, the concept of renormalization of perturbative divergences is replaced by renormalization group concepts such as relevance and universality. Universality is related to cutoff scheme independence in renormalization. Three-dimensional scalar field theory with just the quartic coupling is universal but the less relevant sextic coupling introduces a cutoff scheme dependence, which we quantify by three independent parameters, in the two-loop order of perturbation theory.…

They Did Nazi It Coming: Antisemites Furious as Meme Coin Scheme Unravels (Will Sommer/The Bulwark)
https://www.thebulwark.com/p/they-did-nazi-it-coming-antisemites-stew-peters-memecoin-scheme-jproof-unravels
http://www.memeorandum.com/250617/p47#a250617p47

Realization of a Quantum Error Detection Code with a Dynamically Reassigned Ancillary Qubit
Alena S. Kazmina, Artyom M. Polyanskiy, Elena Yu. Egorova, Nikolay N. Abramov, Daria A. Kalacheva, Viktor B. Lubsanov, Aleksey N. Bolgar, Ilya A. Simakov
https://arxiv.org/abs/2506.20529

Realization of a Quantum Error Detection Code with a Dynamically Reassigned Ancillary Qubit
Quantum error correction (QEC) is essential for achieving fault-tolerant quantum computing. While superconducting qubits are among the most promising candidates for scalable QEC, their limited nearest-neighbor connectivity presents significant challenges for implementing a wide range of error correction codes. In this work, we experimentally demonstrate a quantum error detection scheme that employs a dynamically reassigned ancillary qubit on a chain of three linearly connected transmon qubits. …

'He's more of a player's guy, not a plays guy': Chip Kelly's offense gives flexibility to players https://www.raiders.com/news/chip-kelly-allowing-flexibility-to-place-players-in-advantageous-situations

Hilbert scheme and Hilbert functions of smooth curves of degrees at most $15$ in $\mathbb{P}^5$
Edoardo Ballico, Changho Keem
https://arxiv.org/abs/2507.16547

Hilbert scheme and Hilbert functions of smooth curves of degrees at most $15$ in $\mathbb{P}^5$
Denoting $\mathcal{H}_{d,g,5}$ by the Hilbert scheme of smooth curves of degree $d$ and genus $g$ in $\mathbb{P}^5$, let $\mathcal{H}$ be an irreducible component of $\mathcal{H}_{d,g,5}$. We study the Hilbert function $h_X:\mathbb{N}\longrightarrow\mathbb{N}$, $h_X(t):= h^0(\mathcal{I}_X(t))$ of a general member $X\in\mathcal{H}$, especially when the degree of the curve is low; $d\le 15$. We also determine the irreducibility of $\mathcal{H}_{d,g,5}$ for $d\le 14$ and study the natural functori…

An FDM-sFEM scheme on time-space manifolds and its superconvergence analysis
Chengrun Jiang, Guozhi Dong, Hailong Guo, Zuoqiang Shi
https://arxiv.org/abs/2507.17378 https://

An FDM-sFEM scheme on time-space manifolds and its superconvergence analysis
We study superconvergent discretization of the Laplace-Beltrami operator on time-space product manifolds with Neumann temporal boundary values, which arise in the context of dynamic optimal transport on general surfaces. We propose a coupled scheme that combines finite difference methods in time with surface finite element methods in space. By establishing a new summation by parts formula and proving the supercloseness of the semi-discrete solution, we derive superconvergence results for the re…

An adaptive dynamical low-rank optimizer for solving kinetic parameter identification inverse problems
Lena Baumann, Lukas Einkemmer, Christian Klingenberg, Jonas Kusch
https://arxiv.org/abs/2506.21405

An adaptive dynamical low-rank optimizer for solving kinetic parameter identification inverse problems
The numerical solution of parameter identification inverse problems for kinetic equations can exhibit high computational and memory costs. In this paper, we propose a dynamical low-rank scheme for the reconstruction of the scattering parameter in the radiative transfer equation from a number of macroscopic time-independent measurements. We first work through the PDE constrained optimization procedure in a continuous setting and derive the adjoint equations using a Lagrangian reformulation. For …

Thousands of people are being relocated to the UK as part of a secret £850m scheme set up after a personal data leak of Afghans who supported British forces, it can now be reported.
https://www.

A conservative invariant-domain preserving projection technique for hyperbolic systems under adaptive mesh refinement
Jake Harmon, Martin Kronbichler, Matthias Maier, Eric Tovar
https://arxiv.org/abs/2507.18717

A conservative invariant-domain preserving projection technique for hyperbolic systems under adaptive mesh refinement
We propose a rigorous, conservative invariant-domain preserving (IDP) projection technique for hierarchical discretizations that enforces membership in physics-implied convex sets when mapping between solution spaces. When coupled with suitable refinement indicators, the proposed scheme enables a provably IDP adaptive numerical method for hyperbolic systems where preservation of physical properties is essential. In addition to proofs of these characteristics, we supply a detailed construction o…

Enhanced Image Recognition Using Gaussian Boson Sampling
Si-Qiu Gong, Ming-Cheng Chen, Hua-Liang Liu, Hao Su, Yi-Chao Gu, Hao-Yang Tang, Meng-Hao Jia, Yu-Hao Deng, Qian Wei, Hui Wang, Han-Sen Zhong, Xiao Jiang, Li Li, Nai-Le Liu, Chao-Yang Lu, Jian-Wei Pan
https://arxiv.org/abs/2506.19707

Enhanced Image Recognition Using Gaussian Boson Sampling
Gaussian boson sampling (GBS) has emerged as a promising quantum computing paradigm, demonstrating its potential in various applications. However, most existing works focus on theoretical aspects or simple tasks, with limited exploration of its capabilities in solving real-world practical problems. In this work, we propose a novel GBS-based image recognition scheme inspired by extreme learning machine (ELM) to enhance the performance of perceptron and implement it using our latest GBS device, J…

A discontinuous in time Streamline Diffusion Virtual Element Method for Darcy-transport problem
R A Caraballo Diaz, F Dassi
https://arxiv.org/abs/2506.21326

A discontinuous in time Streamline Diffusion Virtual Element Method for Darcy-transport problem
We present a first numerical study of transport phenomena involving chemically reactive species, modeled by advection-diffusion-reaction systems with flow fields governed by Darcy's law. Among the various discretisation approaches, we consider the Streamline Diffusion method. Both the velocity field and the species concentrations are computed using the Virtual Element Method using a Discontinuous Galerkin scheme for time. An abstract error estimate has been derived using a special technique tha…

A Structure-Preserving Scheme for the Euler System with Potential Temperature Transport
K. R. Arun, Rahuldev Ghorai
https://arxiv.org/abs/2508.15416 https://

A Structure-Preserving Scheme for the Euler System with Potential Temperature Transport
We consider the compressible Euler equations with potential temperature transport, a system widely used in atmospheric modelling to describe adiabatic, inviscid flows. In the low Mach number regime, the equations become stiff and pose significant numerical challenges. We develop an all-speed, semi-implicit finite volume scheme that is asymptotic preserving (AP) in the low Mach limit and strictly positivity preserving for density and potential temperature. The scheme ensures stability and accura…

IMEX-RB: a self-adaptive IMEX time integration scheme exploiting the RB method
Micol Bassanini, Simone Deparis, Francesco Sala, Riccardo Tenderini
https://arxiv.org/abs/2506.16470

IMEX-RB: a self-adaptive IMEX time integration scheme exploiting the RB method
In this work, we introduce a self-adaptive implicit-explicit (IMEX) time integration scheme, named IMEX-RB, for the numerical integration of systems of ordinary differential equations (ODEs), arising from spatial discretizations of partial differential equations (PDEs) by finite difference methods. Leveraging the Reduced Basis (RB) method, at each timestep we project the high-fidelity problem onto a suitable low-dimensional subspace and integrate its dynamics implicitly. Following the IMEX para…

Structure-preserving scheme for 1D KWC system
Makoto Okumura, Shodai Kubota, Ken Shirakawa
https://arxiv.org/abs/2506.16963 https://a…

Structure-preserving scheme for 1D KWC system
In this paper, we consider a system of one-dimensional parabolic PDEs, known as the KWC system, as a phase-field model for grain boundary motion. A key feature of this system is that the equation for the crystalline orientation angle is described as a quasilinear diffusion equation with variable mobility. The goal of this paper is to establish a structure-preserving numerical scheme for the system, focusing on two main structural properties: $\sharp\,1)$ range preservation; and $\sharp\,2)$ ene…

A High-Order Compact Hermite Difference Method for Double-Diffusive Convection
Jianqing Yang, Jianxian Qiu
https://arxiv.org/abs/2506.19367 https://…

A High-Order Compact Hermite Difference Method for Double-Diffusive Convection
In this paper, a class of high-order compact finite difference Hermite scheme is presented for the simulation of double-diffusive convection. To maintain linear stability, the convective fluxes are split into positive and negative parts, then the compact Hermite difference methods are used to discretize the positive and negative fluxes, respectively. The diffusion fluxes of the governing equations are directly approximated by a high-order finite difference scheme based on the Hermite interpolat…