Tootfinder

This https://arxiv.org/abs/2401.05393 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qfi…

RIVCoin: an alternative, integrated, CeFi/DeFi-Vaulted Cryptocurrency
This whitepaper introduces RIVCoin, a cryptocurrency built on Cosmos, fully stabilized by a diversified portfolio of both CeFi and DeFi assets, available in a digital, non-custodial wallet called RIV Wallet, that aims to provide Users an easy way to access the cryptocurrency markets, compliant to the strictest AML laws and regulations up to date. The token is a cryptocurrency at any time stabilized by a basket of assets: reserves are invested in a portfolio composed long term by 50% of CeFi ass…

This https://arxiv.org/abs/2406.03456 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

Recurrent neural chemical reaction networks that approximate arbitrary dynamics
Many important phenomena in biochemistry and biology exploit dynamical features such as multi-stability, oscillations, and chaos. Construction of novel chemical systems with such rich dynamics is a challenging problem central to the fields of synthetic biology and molecular nanotechnology. In this paper, we address this problem by putting forward a molecular version of a recurrent artificial neural network, which we call recurrent neural chemical reaction network (RNCRN). The RNCRN uses a modul…

This https://arxiv.org/abs/2505.05227 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Something about the Mechanism of Induction Phenomena: The forgotten work of Berta de Haas-Lorentz on diamagnetism in superconductors
In 1925, Dr. Geertruida Luberta "Berta" de Haas-Lorentz published the paper "Iets over het mechanisme van inductieverschijnselen" in the journal Physica. Her paper was the first to discuss perfect diamagnetism of superconductors, eight years before the discovery of the Meissner effect, when the essential difference between the two phenomena was not understood. Unfortunately, her work was almost forgotten by the scientific community. To counter this, we translate her seminal 1925 paper from Dutc…

This https://arxiv.org/abs/2409.00612 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

7-location, weak systolicity and isoperimetry
$m$-location is a local combinatorial condition for flag simplicial complexes introduced by Osajda. Osajda showed that simply connected 8-located locally 5-large complexes are hyperbolic. We treat the nonpositive curvature case of 7-located locally 5-large complexes. We show that any minimal area disc diagram in a 7-located locally 5-large complex is itself 7-located and locally 5-large. We define a natural CAT(0) metric for 7-located disc diagrams and use this to prove that simply connected …

This https://arxiv.org/abs/2502.12687 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Black Hole Chemistry Knows Extra Dimensions
: In this note, we study an extra dimension effect on the black hole chemistry in the 8-dimensional Einstein-Yang-Mills-Maxwell theory. The base spacetime contains 4- dimensional compact manifolds and an instanton on top of those. We demonstrate how the extra dimensions affect the phase transition and viable black hole sizes in the 4-dimensional Einstein frame through the black hole chemistry. We focus on asymptotically anti-de Sitter spacetimes for the effective 4-dimensional model obtained by…

[2025-06-06 Fri (UTC), no new articles found for q-fin.PM Portfolio Management]
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[2025-06-06 Fri (UTC), no new articles found for q-fin.MF Mathematical Finance]
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[2025-06-06 Fri (UTC), 7 new articles found for physics.geo-ph Geophysics]
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[2025-06-06 Fri (UTC), 5 new articles found for physics.app-ph Applied Physics]
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This https://arxiv.org/abs/2405.12717 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

A note on the Thom morphism for the classifying space of certain Lie groups and gauge groups
We give a complete description of which non-torsion generators are not in the image of the Thom morphism from complex cobordism to integral cohomology for the classifying space of exceptional Lie groups except for E_8. We then show that the Thom morphism is not surjective for the classifying space of the gauge group of a principal E_7-bundle over the four-dimensional sphere. We use the results to detect nontrivial elements in the kernel of the reduced Thom morphism for Lie groups and their clas…

[2025-06-06 Fri (UTC), 8 new articles found for cs.DC Distributed, Parallel, and Cluster Computing]
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This https://arxiv.org/abs/2505.19644 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csSD_…

STOPA: A Database of Systematic VariaTion Of DeePfake Audio for Open-Set Source Tracing and Attribution
A key research area in deepfake speech detection is source tracing - determining the origin of synthesised utterances. The approaches may involve identifying the acoustic model (AM), vocoder model (VM), or other generation-specific parameters. However, progress is limited by the lack of a dedicated, systematically curated dataset. To address this, we introduce STOPA, a systematically varied and metadata-rich dataset for deepfake speech source tracing, covering 8 AMs, 6 VMs, and diverse paramete…

[2025-06-06 Fri (UTC), 8 new articles found for cs.IT Information Theory]
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[2025-06-06 Fri (UTC), 8 new articles found for cs.IR Information Retrieval]
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Frustrated $J_1-J_2$ Diamond Lattice Antiferromagnet Co$_2$Ti$_3$O$_8$ with a Vacancy-ordered Spinel Structure Synthesized via a Topochemical Reaction
Rio Kumeda, Yuya Haraguchi, Daisuke Nishio-Hamane, Akira Matsuo, Koichi Kindo, Hiroko Aruga Katori
https://arxiv.org/abs/2506.05099

Frustrated $J_1-J_2$ Diamond Lattice Antiferromagnet Co$_2$Ti$_3$O$_8$ with a Vacancy-ordered Spinel Structure Synthesized via a Topochemical Reaction
Metastable Co$_2$Ti$_3$O$_8$ was synthesized through a topochemical reaction using Li$_2$CoTi$_3$O$_8$ as the precursor, resulting in a vacancy-ordered spinel structure. Crystal structure analysis confirmed that Co ions selectively occupy the A-site, giving rise to a frustrated diamond lattice. Magnetic susceptibility and heat capacity measurements revealed antiferromagnetic order at 4.4 K, which is markedly suppressed compared to the negative Weiss temperature of ${\sim}-27$ K, indicating a hi…

[2025-06-06 Fri (UTC), 8 new articles found for astro-ph.EP Earth and Planetary Astrophysics]
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This https://arxiv.org/abs/2506.01306 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Asymptotic of Coulomb gas integral, Temperley-Lieb type algebras and pure partition functions
In this supplementary note, we study the asymptotic behavior of several types of Coulomb gas integrals and construct the pure partition functions for multiple radial $\mathrm{SLE}(κ)$ and general multiple chordal $\mathrm{SLE}(κ)$ systems. For both radial and chordal cases, we prove the linear independence of the ground state solutions $J_α^{(m,n)}(\boldsymbol{x})$ to the null vector equations for irrational values of $κ\in (0,8)$. In particular, we show that the ground state solutions …

[2025-06-06 Fri (UTC), 8 new articles found for astro-ph.IM Instrumentation and Methods for Astrophysics]
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[2025-06-06 Fri (UTC), 8 new articles found for cond-mat.soft Soft Condensed Matter]
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This https://arxiv.org/abs/2505.10981 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csAI_…

Rethinking the Role of Prompting Strategies in LLM Test-Time Scaling: A Perspective of Probability Theory
Recently, scaling test-time compute on Large Language Models (LLM) has garnered wide attention. However, there has been limited investigation of how various reasoning prompting strategies perform as scaling. In this paper, we focus on a standard and realistic scaling setting: majority voting. We systematically conduct experiments on 6 LLMs $\times$ 8 prompting strategies $\times$ 6 benchmarks. Experiment results consistently show that as the sampling time and computational overhead increase, co…

[2025-06-06 Fri (UTC), 8 new articles found for physics.soc-ph Physics and Society]
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The structural and kinematical properties of NGC 5634, a globular cluster associated with the Sagittarius dwarf galaxy?
Shouzhi Wang, Jundan Nie, Biwei Jiang, Hao Tian, Chao Liu, Ying-Hua Zhang
https://arxiv.org/abs/2506.04806

The structural and kinematical properties of NGC 5634, a globular cluster associated with the Sagittarius dwarf galaxy?
We investigate the origin of NGC 5634 through a comprehensive analysis of its morphology, kinematics and dynamics. Utilizing data from the DESI Legacy Survey, we refined its fundamental parameters (age t = 12.8 +/- 0.3 Gyr, metallicity [Fe/H] = -1.8 +/- 0.1 dex, distance modulus dm = 17.0 +/- 0.1 mag) and constructed matched-filter template based on the combination of these parameters to search for extra-tidal structures. However, no significant features were detected above a 3 sigma signal-to-…

[2025-06-06 Fri (UTC), 8 new articles found for cs.MA Multiagent Systems]
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This https://arxiv.org/abs/2306.01511 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qfi…

The Dynamic Persistence of Economic Shocks
We propose a novel framework for modeling time-varying persistence in economic time series, allowing for smoothly evolving heterogeneity in shock dynamics. We leverage localized regression techniques to flexibly identify changes in persistence over time, offering a data-driven alternative to traditional parametric models. We applied this methodology to U.S. inflation and stock market volatility data and found substantial persistence variations that align with key macroeconomic events and market…

This https://arxiv.org/abs/2312.00885 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Divisible minimal codes
Minimal codes are linear codes where all non-zero codewords are minimal, i.e., whose support is not properly contained in the support of another codeword. The minimum possible length of such a $k$-dimensional linear code over $\mathbb{F}_q$ is denoted by $m(k,q)$. Here we determine $m(7,2)$, $m(8,2)$, and $m(9,2)$, as well as full classifications of all codes attaining $m(k,2)$ for $k\le 7$ and those attaining $m(9,2)$. We give improved upper bounds for $m(k,2)$ for all $10\le k\le 17$. It turn…

[2025-06-06 Fri (UTC), no new articles found for q-bio.MN Molecular Networks]
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[2025-06-06 Fri (UTC), 1 new article found for physics.hist-ph History and Philosophy of Physics]
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This https://arxiv.org/abs/2506.01068 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Free field construction of Heterotic string compactified on Calabi-Yau manifolds of Berglund-Hubsch type in the Batyrev-Borisov combinatorial approach
Heterotic string models in $4$-dimensions are the hybrid theories of a left-moving $N=1$ fermionic string whose additional $6$-dimensions are compactified on a $N=2$ SCFT theory with the central charge $9$, and a right-moving bosonic string, whose additional dimensions are also compactified on $N=2$ SCFT theory with the central charge $9$, and the remaining $13$ dimensions of which form the torus of $E(8)\times SO(10)$ Lie algebra. The important class of exactly solvable Heterotic string mode…

This https://arxiv.org/abs/2209.10166 has been replaced.
link: https://scholar.google.com/scholar?q=a

Chaotic Hedging with Iterated Integrals and Neural Networks
In this paper, we derive an $L^p$-chaos expansion based on iterated Stratonovich integrals with respect to a given exponentially integrable continuous semimartingale. By omitting the orthogonality of the expansion, we show that every $p$-integrable functional, $p \in [1,\infty)$, can be approximated by a finite sum of iterated Stratonovich integrals. Using (possibly random) neural networks as integrands, we therefere obtain universal approximation results for $p$-integrable financial derivative…

This https://arxiv.org/abs/2505.17662 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csLG_…

Automating Versatile Time-Series Analysis with Tiny Transformers on Embedded FPGAs
Transformer-based models have shown strong performance across diverse time-series tasks, but their deployment on resource-constrained devices remains challenging due to high memory and computational demand. While prior work targeting Microcontroller Units (MCUs) has explored hardware-specific optimizations, such approaches are often task-specific and limited to 8-bit fixed-point precision. Field-Programmable Gate Arrays (FPGAs) offer greater flexibility, enabling fine-grained control over data …

Reactive Transport Simulation of Silicate-Rich Shale Rocks when Exposed to CO2 Saturated Brine Under High Pressure and High Temperature
Shaziya A. Banu, Venkata R. S. B. Varanasi, Arash Noshadravan, Sara Abedi
https://arxiv.org/abs/2506.05122

Reactive Transport Simulation of Silicate-Rich Shale Rocks when Exposed to CO2 Saturated Brine Under High Pressure and High Temperature
This study examines the feasibility of carbon dioxide storage in shale rocks and the reliability of reactive transport models in achieving accurate replication of the chemo-mechanical interactions and transport processes transpiring in these rocks when subjected to CO2 saturated brine. Owing to the heterogeneity of rocks, experimental testing for adequate deductions and findings, could be an expensive and time-intensive process. Therefore, this study proposes utilization of reactive transport m…

Harnessing curvature for helical wave generation in spiral-based metamaterial structures
Mohamed Roshdy, Osama R. Bilal
https://arxiv.org/abs/2506.04903 ht…

Harnessing curvature for helical wave generation in spiral-based metamaterial structures
Linearly polarized elastic waves propagating in a linear path have been extensively explored in numerous applications from biomedical imaging to structural health monitoring. However, elastic waves propagating in a circularly polarized helical path are less explored because of the challenges in their generation and control. In this paper, we harness conventional actuation methods combined with sheets decorated by Archimedean spirals to generate elastic helical waves. We show that our metamateri…

This https://arxiv.org/abs/2506.03023 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

TDCOSMO 2025: Cosmological constraints from strong lensing time delays
We present cosmological constraints from 8 strongly lensed quasars (hereafter, the TDCOSMO-2025 sample). Building on previous work, our analysis incorporated new deflector stellar velocity dispersions measured from spectra obtained with the James Webb Space Telescope (JWST), the Keck Telescopes, and the Very Large Telescope (VLT), utilizing improved methods. We used integrated JWST stellar kinematics for 5 lenses, VLT-MUSE for 2, and resolved kinematics from Keck and JWST for RX J1131-1231. We …

Becoming Immutable: How Ethereum is Made
Andrea Canidio, Vabuk Pahari
https://arxiv.org/abs/2506.04940 https://arxiv.org/pdf/2506.049…

Becoming Immutable: How Ethereum is Made
We analyze blocks proposed for inclusion in the Ethereum blockchain during 8 minutes on December 3rd, 2024. Our dataset comprises 38 winning blocks, 15,097 proposed blocks, 10,793 unique transactions, and 2,380,014 transaction-block pairings. We find that exclusive transactions--transactions present only in blocks proposed by a single builder--account for 85% of the fees paid by all transactions included in winning blocks. We also find that a surprisingly large number of user transactions are d…

This https://arxiv.org/abs/2412.03747 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

Model-agnostic search for dijet resonances with anomalous jet substructure in proton-proton collisions at $\sqrt{s}$ = 13 TeV
This paper presents a model-agnostic search for narrow resonances in the dijet final state in the mass range 1.8-6 TeV. The signal is assumed to produce jets with substructure atypical of jets initiated by light quarks or gluons, with minimal additional assumptions. Search regions are obtained by utilizing multivariate machine-learning methods to select jets with anomalous substructure. A collection of complementary anomaly detection methods - based on unsupervised, weakly supervised, and semis…

This https://arxiv.org/abs/2502.10188 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Installation and performance of the 3rd Veto plane at the SND@LHC detector
During 2022/2023 the optimal inefficiency of the Veto system of the SND@LHC detector was measured to be $(7.8\pm2.8)\times10^{-8}$. To reduce this inefficiency, a third Veto plane was installed during the 2023-2024 Year End Technical Stop. In addition, the Veto system was lowered to cover the target fully, thereby increasing acceptance. This paper describes how the inefficiency of the Veto system was reduced from $7.8\times10^{-8}$ with an acceptance of about $64\%$ of the target area in 2022-2…

[2025-06-05 Thu (UTC), 8 new articles found for cs.DL Digital Libraries]
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The number of primes not in a numerical semigroup
Yong-Gao Chen, Hui Zhu
https://arxiv.org/abs/2506.03625 https://arxiv.org/pdf/2506.…

The number of primes not in a numerical semigroup
For two coprime positive integers $a,b$, let $π^* (a, b)$ be the number of primes that cannot be represented as $au+bv$, where $u,v$ are nonnegative integers. In this paper, we prove that $π^* (a, b)\ge 0.014 π(ab-a-b)$ and pose following conjecture: $π^* (a, b)\ge \frac 12 π(ab-a-b)$, where $π(x)$ denotes the number of primes not exceeding $x$. This conjecture is confirmed for $1\le a\le 8$.

[2025-06-06 Fri (UTC), 1 new article found for q-fin.GN General Finance]
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Detailing the stress pattern in the area of central Ionian Islands
V. Anagnostou, E. Papadimitriou, V. Karakostas, T. B\"ack
https://arxiv.org/abs/2506.04777

Detailing the stress pattern in the area of central Ionian Islands
The Kefalonia Transform Fault Zone (KTFZ) is the most seismically active area in the Mediterranean and consists of two major branches, the Lefkada fault segment to the north and the Kefalonia fault segment to the south. KTFZ acts as an active boundary between the subduction zone of the remnants of the oceanic lithosphere of the Eastern Mediterranean that subducts under the Aegean microplate to the south and the continental collision between the Eurasian plate and the Adriatic Microplate to the …

Thermal Property Microscopy with Compressive Sensing Frequency-Domain Thermoreflectance
Haobo Yang, Zhenguo Zhu, Zhongnan Xie, Jinhong Du, Shuo Bai, Hong Guo, Te-Huan Liu, Ronggui Yang, Xin Qian
https://arxiv.org/abs/2506.04728

Thermal Property Microscopy with Compressive Sensing Frequency-Domain Thermoreflectance
Spatial mapping of thermal properties is critical for unveiling the structure-property relation of materials, heterogeneous interfaces, and devices. These property images can also serve as datasets for training artificial intelligence models for material discoveries and optimization. Here we introduce a high-throughput thermal property imaging method called compressive sensing frequency domain thermoreflectance (CS-FDTR), which can robustly profile thermal property distributions with micrometer…

A commented translation of Boltzmann's work, "Ueber die sogenannte H-Curve."
Jae Wan Shim
https://arxiv.org/abs/2506.04262 https://

A commented translation of Boltzmann's work, "Ueber die sogenannte H-Curve."
Boltzmann's work, ``Ueber die sogenannte H-Curve," discusses his demonstration of the essential characteristics of the H-curve in a clear, concise, and precise style, showcasing his efforts to persuade his peers. To make these findings more widely accessible, the author aims to provide a translated version of the original article, while also correcting some typographical errors in the mathematical expressions with explanatory footnotes. The final section offers concluding remarks with graphs an…

This https://arxiv.org/abs/2312.02943 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qfi…

Striking the Balance: Life Insurance Timing and Asset Allocation in Financial Planning
This paper investigates the consumption and investment decisions of an individual facing uncertain lifespan and stochastic labor income within a Black-Scholes market framework. A key aspect of our study involves the agent's option to choose when to acquire life insurance for bequest purposes. We examine two scenarios: one with a fixed bequest amount and another with a controlled bequest amount. Applying duality theory and addressing free-boundary problems, we analytically solve both cases, and …

Wind-fed Supermassive Black Hole Accretion by the Nuclear Star Cluster: the Case of M31*
Zhao Su, Zhiyuan Li, Zongnan Li
https://arxiv.org/abs/2506.04778 h…

Wind-fed Supermassive Black Hole Accretion by the Nuclear Star Cluster: the Case of M31*
The central supermassive black hole (SMBH) of the Andromeda galaxy, known as M31*, exhibits dim electromagnetic emission and is inferred to have an extremely low accretion rate for its remarkable mass ($\sim10^8~\rm~M_\odot$). In this work, we use three-dimensional hydrodynamical simulations to explore a previously untested scenario, in which M31* is fed by the collective stellar mass-loss from its surrounding nuclear star cluster, manifested as a famous eccentric disk of predominantly old stel…

[2025-05-07 Wed (UTC), no new articles found for q-fin.GN General Finance]
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Fault based recurrence models and occurrence probabilities of large earthquakes (M6.0) in the Corinth Rift, Greece
C. Kourouklas, P. Bonatis, E. Papadimitriou, V. Karakostas
https://arxiv.org/abs/2506.04382

Fault based recurrence models and occurrence probabilities of large earthquakes (M6.0) in the Corinth Rift, Greece
The M6.0 earthquakes recurrence times, Tr, exhibit high variability from 40 to 1500 years, with the southern Corinth Rift fault segments reaching values up to 350 years and their antithetic ones ranging from 400 to 1500 years. The fault segments in the Corinth Rift can be divided into three groups, according to their recurrence behaviour, with some of them exhibiting significantly lower renewal model probabilities than the Poisson model, others showing nearly equal probabilities, and one segmen…

Analog dual classifier via a time-modulated neuromorphic metasurface
M. Mousa, M. Moghaddaszadeh, M. Nouh
https://arxiv.org/abs/2506.04629 https://

Analog dual classifier via a time-modulated neuromorphic metasurface
A neuromorphic metasurface embodies mechanical intelligence by realizing physical neural architectures. It exploits guided wave scattering to conduct computations in an analog manner. Through multiple tuned waveguides, the neuromorphic system recognizes the features of an input signal and self-identifies its classification label. The computational input is introduced to the system through mechanical excitations at one edge, generating elastic waves which traverse multiple layers of resonant met…

[2025-06-05 Thu (UTC), 8 new articles found for cs.IR Information Retrieval]
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[2025-05-06 Tue (UTC), no new articles found for q-fin.GN General Finance]
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Deformation Due to Non-planar Fault Movement in Fractional Maxwell Medium
Pabita Mahato (Mondal), Seema Sarkar (Mondal), Subhash Chandra (Mondal)
https://arxiv.org/abs/2506.04257 …

Deformation Due to Non-planar Fault Movement in Fractional Maxwell Medium
In seismically active regions, the accumulation of geophysical stress during the aseismic period and its impact on faults is crucial for identifying which faults are more likely to undergo future fault movement. In this model, we consider an infinite non-planar fault located in a viscoelastic half-space of a fractional Maxwell medium representing the lithosphere-asthenosphere system comprising three interconnected planar sections. The problem is formulated as a two-dimensional boundary value pr…

Hybrid TPMS-based Designs for Anisotropic Acoustic Metamaterials: Numerical Simulation and Topology Optimization
Mohamed Shendy, Nima Maftoon, Armaghan Salehian
https://arxiv.org/abs/2506.04378

Hybrid TPMS-based Designs for Anisotropic Acoustic Metamaterials: Numerical Simulation and Topology Optimization
Anisotropic acoustic metamaterials have received significant scholarly attention in recent years due to their capacity to manipulate wave propagation across various directions. This property is integral to applications involving directional wave guiding. Nonetheless, previously proposed anisotropic acoustic metamaterials exhibited commonalities in bandgaps along x and y periodicities, limiting their efficacy for such applications. Therefore, this work introduces hybrid Triply Periodic Minimal S…

This https://arxiv.org/abs/2411.13630 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

Competitive binding of Activator-Repressor in Stochastic Gene Expression
Regulation of gene expression is the consequence of interactions between the promoter of the gene and the transcription factors (TFs). In this paper, we explore the features of a genetic network where the TFs (activators and repressors) bind the promoter in a competitive way. We develop an analytical theory that offers detailed reaction kinetics of the competitive activator-repressor system which could be the powerful tools for extensive study and analysis of the genetic circuit in future resea…

[2025-06-05 Thu (UTC), 8 new articles found for astro-ph.EP Earth and Planetary Astrophysics]
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Some Bounds Related to the 2-adic Littlewood Conjecture
Dinis Vitorino, Ingrid Vukusic
https://arxiv.org/abs/2506.04110 https://arxiv…

Some Bounds Related to the 2-adic Littlewood Conjecture
For every irrational real $α$, let $M(α) = \sup_{n\geq 1} a_n(α)$ denote the largest partial quotient in its continued fraction expansion (or $\infty$, if unbounded). The $2$-adic Littlewood conjecture (2LC) can be stated as follows: There exists no irrational $α$ such that $M(2^k α)$ is uniformly bounded by a constant $C$ for all $k\geq 0$. Badziahin proved (considering a different formulation of 2LC) that if a counterexample exists, then the bound $C$ is at least $8$. We improve this bou…

[2025-06-05 Thu (UTC), 1 new article found for q-fin.MF Mathematical Finance]
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[2025-06-05 Thu (UTC), no new articles found for q-fin.PM Portfolio Management]
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Neural Jumps for Option Pricing
Duosi Zheng, Hanzhong Guo, Yanchu Liu, Wei Huang
https://arxiv.org/abs/2506.05137 https://arxiv.org/p…

Neural Jumps for Option Pricing
Recognizing the importance of jump risk in option pricing, we propose a neural jump stochastic differential equation model in this paper, which integrates neural networks as parameter estimators in the conventional jump diffusion model. To overcome the problem that the backpropagation algorithm is not compatible with the jump process, we use the Gumbel-Softmax method to make the jump parameter gradient learnable. We examine the proposed model using both simulated data and S&P 500 index options.…

Estimating properties of a homogeneous bounded soil using machine learning models
Konstantinos Kalimeris, Leonidas Mindrinos, Nikolaos Pallikarakis
https://arxiv.org/abs/2506.04256

Estimating properties of a homogeneous bounded soil using machine learning models
This work focuses on estimating soil properties from water moisture measurements. We consider simulated data generated by solving the initial-boundary value problem governing vertical infiltration in a homogeneous, bounded soil profile, with the usage of the Fokas method. To address the parameter identification problem, which is formulated as a two-output regression task, we explore various machine learning models. The performance of each model is assessed under different data conditions: full,…

Observation of Coherent Perfect Acoustic Absorption at an Exceptional Point
Yi-Fei Xia, Zi-Xiang Xu, Yu-Ting Yan, An Chen, Jing Yang, Bin Liang, Jian-Chun Cheng, Johan Christensen
https://arxiv.org/abs/2506.04231

Observation of Coherent Perfect Acoustic Absorption at an Exceptional Point
Non-Hermitian systems have recently shown new possibilities to manipulate wave scattering by exploiting loss, yet coherent perfect absorption at an exceptional point (CPA EP) remains elusive in acoustics. Here we demonstrate it based on a two-channel waveguide with compact lossy resonators. We realize imbalanced losses crucial for CPA EP by using active components to independently modulate the non-Hermiticity. The CPA EP experimentally manifests as full absorption at a unique real frequency and…

Decorrelation of Poroelastic Data via Multiscale Mollifiers Wavelets
Bianca Kretz, Willi Freeden, Volker Michel
https://arxiv.org/abs/2506.04239 https://…

Decorrelation of Poroelastic Data via Multiscale Mollifiers Wavelets
Poroelasticity can be classified with geophysics and describes the interaction between solids deformation and the pore pressure in a porous medium. The investigation of this effect is anywhere interesting where a porous medium and a fluid come together into play, for example this is the case in geothermics. More precisely, it is an important aspect in reservoir management since the replacement of the water in the reservoir some kilometers below the Earth's surface has an effect on the surroundi…

[2025-06-05 Thu (UTC), no new articles found for q-bio.MN Molecular Networks]
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[2025-06-05 Thu (UTC), 1 new article found for physics.hist-ph History and Philosophy of Physics]
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This https://arxiv.org/abs/2407.09472 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Galaxy Mergers in the Epoch of Reionization I: A JWST Study of Pair Fractions, Merger Rates, and Stellar Mass Accretion Rates at $z = 4.5-11.5$
We present a full analysis of galaxy major merger pair fractions, merger rates, and mass accretion rates, thus uncovering the role of mergers in galaxy formation at the earliest previously unexplored epoch of $4.5

This https://arxiv.org/abs/2402.14796 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Explicit formulae for linear characters of $Γ_0(N)$
We give explicit formulae for a class of complex linear unitary characters of the congruence subgroups $Γ_0(N)$ which involve a variant of Rademacher's $Ψ$ function. We then prove that these characters cover all characters of $Γ_0(N)$ precisely when $N=1,2,3,4,5,6,7,8,10,12,13$.

Reproducing kernel Hilbert space methods for modelling the discount curve
Andreas Celary, Paul Kr\"uhner, Zehra Eksi
https://arxiv.org/abs/2506.03342 …

Reproducing kernel Hilbert space methods for modelling the discount curve
We consider the theory of bond discounts, defined as the difference between the terminal payoff of the contract and its current price. Working in the setting of finite-dimensional realizations in the HJM framework, under suitable notions of no-arbitrage, the admissible discount curves take the form of polynomial, exponential functions. We introduce reproducing kernels that are admissible under no-arbitrage as a tractable regression basis for the estimation problem in calibrating the model to ma…

Velocity determination for time lapse surveys using residual prestack depth migration
Joerg F. Schneider
https://arxiv.org/abs/2506.04234 https://

Velocity determination for time lapse surveys using residual prestack depth migration
The presented approach aims at estimating the lateral variation of seismic velocities for a seismic timelapse survey. The monitor survey is depth migrated with the known velocity model of the base survey. An analysis is performed to determine whether the moveout to be expected for the monitor survey after residual prestack depth migration (RPSM) can be used for the velocity determination of the formation of interest. In that case the migrated response for the base horizon of the monitor survey …

This https://arxiv.org/abs/2503.15954 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Holographic deformations of matrix models
We study maximal supergravity in two dimensions, obtained from reduction of IIA supergravity on an $S^8$ sphere. The theory captures the low-lying fluctuations around the non-conformal D0-brane near-horizon geometry, dual to operators in the BFSS matrix model. Upon exciting some of the supergravity scalars, we construct half-supersymmetric domain wall solutions preserving $SO(p)\times SO(9-p)$ subgroups of the original $SO(9)$ symmetry. We determine their uplift to ten dimensions and the corres…

From Bjorken Scaling to Scaling Violations
Giorgio Parisi
https://arxiv.org/abs/2506.03383 https://arxiv.org/pdf/2506.03383

From Bjorken Scaling to Scaling Violations
This paper traces the historical and conceptual journey from Bjorken scaling to the discovery of scaling violations in deep inelastic scattering, culminating in the development of Quantum Chromodynamics (QCD). Beginning with the challenges faced by early strong interaction theories in the 1950s, we explore the emergence of agnostic approaches such as the bootstrap philosophy and current algebra, which sought to describe hadronic phenomena without relying on specific field theories. The pivotal …

[2025-06-04 Wed (UTC), 1 new article found for q-fin.PM Portfolio Management]
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This https://arxiv.org/abs/2501.11099 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The JWST EXCELS survey: an extremely metal-poor galaxy at $z=8.271$ hosting an unusual population of massive stars
We present an analysis of the rest-frame optical ($λ\simeq 3100-5600 \,$Å) spectrum of a $\mathrm{log}_{10}(M_*/\mathrm{M_\odot}) = 8.6$ star-forming galaxy at $z=8.271$ (EXCELS-63107) from JWST/NIRSpec medium-resolution observations taken as part of the EXCELS survey. EXCELS-63107 is a compact object consistent with the size of local star-forming cluster complexes ($r_e < 200 \, \rm{pc}$) and has an extremely steep UV continuum measured from JWST/NIRCam photometry ($β=-3.3\pm0.3$). The JWST…

This https://arxiv.org/abs/2312.08923 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Topology change and heterotic flux vacua
We investigate the interrelation between topology and Narain T-duality of heterotic flux vacua. We present evidence that all 5 and 4-dimensional Minkowski space heterotic flux backgrounds with 8 supercharges have a locus in the moduli space with a T-dual description in terms of a compactification on the product of a K3 surface with a circle or a torus. A test of this equivalence is provided by calculating the new supersymmetric index on both sides of the duality. We examine the implications of …

This https://arxiv.org/abs/2504.01525 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Rapid Muon Tomography for Border Security
Cosmic-ray muon tomography is a promising technique for border security applications, leveraging highly penetrating cosmic-ray muons and their interactions with various materials to generate 3D images of large and dense objects, such as shipping containers. Using scattering and absorption of muons as they pass through dense cargo materials, muon tomography provides a viable solution for customs and border security by enabling the verification of shipping container declarations and preventing il…

This https://arxiv.org/abs/2410.09346 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

Transcriptome and Redox Proteome Reveal Temporal Scales of Carbon Metabolism Regulation in Model Cyanobacteria Under Light Disturbance
We develop a systems approach based on an energy-landscape concept to differentiate interactions involving redox activities and conformational changes of proteins and nucleic acids interactions in multi-layered protein-DNA regulatory networks under light disturbance. Our approach is a data-driven modeling workflow using a physics-informed machine learning algorithm to train a non-linear mathematical model for interpreting gene expression dynamics and to lead discovery for protein regulators usi…

This https://arxiv.org/abs/2307.02178 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qfi…

Non-Concave Utility Maximization with Transaction Costs
This paper studies a finite-horizon portfolio selection problem with non-concave terminal utility and proportional transaction costs, in which the commonly used concavification principle for terminal value is no longer applicable. We establish a proper theoretical characterization of this problem via a two-step procedure. First, we examine the asymptotic terminal behavior of the value function, which implies that any transaction close to maturity only provides a marginal contribution to the uti…

[2025-06-05 Thu (UTC), 2 new articles found for q-fin.GN General Finance]
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[2025-06-05 Thu (UTC), 4 new articles found for physics.app-ph Applied Physics]
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Hedging Deposit Run Risk Prior to the 2023 Regional Banking Crisis
Matt Brigida, Kathleen Maceyka
https://arxiv.org/abs/2506.03344 https://

Hedging Deposit Run Risk Prior to the 2023 Regional Banking Crisis
In this analysis we determine factors driving the cross-sectional variation in uninsured deposits during the interest rate raising cycle of 2022 to 2023. The goal of our analysis is to determine whether banks proactively managed deposit run risk prior to the hiking cycle which produced the 2023 Regional Banking Crisis. We find evidence that interest rate forward, futures, and swap use affected the change in a bank uninsured deposits over the period. Interest rate option use, however, has no eff…

[2025-06-04 Wed (UTC), no new articles found for q-bio.MN Molecular Networks]
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[2025-06-04 Wed (UTC), no new articles found for q-fin.MF Mathematical Finance]
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[2025-06-05 Thu (UTC), 4 new articles found for physics.geo-ph Geophysics]
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[2025-06-04 Wed (UTC), no new articles found for physics.hist-ph History and Philosophy of Physics]
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Gauging Growth: AGI Mathematical Metrics for Economic Progress
Davit Gondauri
https://arxiv.org/abs/2506.03156 https://arxiv.org/pdf/…

Gauging Growth: AGI Mathematical Metrics for Economic Progress
Today, the economy is greatly influenced by Artificial General Intelligence (AGI). The purpose of this paper is to determine the impact of the quantitative relations of AGI on the country's economic parameters. The authors use the analysis of historical data in the research, develop a new mathematical algorithm that refers to the level of AGI development, and conduct a regression analysis. The economic effect of AGI is deduced if it affects the growth of real GDP. As a result of the analysis, i…

Levitated macroscopic rotors with 10 hours of free spin at room temperature
Xianfeng Chen, Nirmala Raj, Ruvi Lecamwasam, Mingxi Chen, Christina Yuan Ling Tan, Syed M. Assad, Ping Koy Lam
https://arxiv.org/abs/2506.03803

Levitated macroscopic rotors with 10 hours of free spin at room temperature
Low-dissipation rotors with large angular momentum are essential for precision sensing and probing macroscopic quantum phenomena. To date, low dissipation can only be achieved for micro-scale rotors. Here, we report a diamagnetically levitated millimeter-scale rotor exhibiting a measured dissipation rate as low as $3.85\,μ\mathrm{Hz}$ at room temperature, corresponding to a free spinning duration exceeding 10 hours. The rotor is levitated stably over an axisymmetric permanent magnet trap, and …

Determination of Effect of the Movement of a Finite, Dip-slip Fault in Viscoelastic Half-space of Fractional Burger Rheology
Pabita Mahato (Mondal), Seema Sarkar (Mondal)
https://arxiv.org/abs/2506.03977

Determination of Effect of the Movement of a Finite, Dip-slip Fault in Viscoelastic Half-space of Fractional Burger Rheology
The seismically active regions often correlate with fault lines, and the movement of these faults plays a crucial role in defining how stress is stored or released in these areas. To investigate the deformation and accumulation/release of stress and strain in seismically active regions during the aseismic period, a mathematical model has been developed by considering a finite, creeping dip-slip fault inclined in the viscoelastic half-space of a fractional Burger rheology. Laplace transformation…

Direct laser ablation of 2D material films for fabricating multi-functional flexible and transparent devices
Yigit Sozen, Yu Kyoung Ryu, Javier Martinez, Andres Castellanos-Gomez
https://arxiv.org/abs/2506.03730

Direct laser ablation of 2D material films for fabricating multi-functional flexible and transparent devices
We present a scalable method for direct patterning of graphite and transition metal dichalcogenide (TMD) films on polycarbonate (PC) and other transparent substrates using fiber laser ablation. This process facilitates the fabrication of various functional devices, including strain gauges, supercapacitors, and photodetector arrays, without the need for photolithography or solvents, thereby simplifying device production and enhancing environmental sustainability. Utilizing roll-to-roll mechanica…

Geo-Disasters: geocoding climate-related events in the international disaster database EM-DAT
Khalil Teber, M\'elanie Weynants, Fabian Gans, Miguel D. Mahecha
https://arxiv.org/abs/2506.03797

Geo-Disasters: geocoding climate-related events in the international disaster database EM-DAT
Climate hazards can escalate into humanitarian disasters. Understanding their trajectories -- considering hazard intensity, human exposure, and societal vulnerability -- is essential for effective anticipatory action. The International Disaster Database (EM-DAT) is the only freely available global resource of humanitarian disaster records. However, it lacks exact geospatial information, limiting its use for climate hazard impact research. Here, we provide geocoding of 9,217 climate-related disa…

A Simple and Novel Passive Double-Sensitivity Optical Gyroscope Based on Non-Reciprocal Polarization Techniques
Onder Akcaalan, Melike Gumus Akcaalan
https://arxiv.org/abs/2506.03498

A Simple and Novel Passive Double-Sensitivity Optical Gyroscope Based on Non-Reciprocal Polarization Techniques
This paper presents a novel interferometric fiber optic gyroscope (IFOG) architecture, the Double-Sensitive Non-Reciprocal Polarization Phase Shifter IFOG (DS-NRPPS-IFOG), which introduces for the first time a fully passive phase biasing scheme capable of simultaneous operation at two quadrature points $π/2$ and $3π/2$. Building upon prior passive biasing techniques, this design uses a Non-Reciprocal Polarization-Dependent Phase Shifter (NRPPS) combined with a double-pass sensing coil arrange…

Model for the Thermodynamics of Iron at High Pressures Near Melting
Rann Shikler, Noya Dimanstein Firman, Yinon Ashkenazy
https://arxiv.org/abs/2506.03386 …

Model for the Thermodynamics of Iron at High Pressures Near Melting
The Fe pressure-temperature phase diagram and its melting line have a wide range of applications, including providing constraints for iron-core planetary models. We propose an equation of state (EOS) model based on the interstitial theory of simple condensed matter (ITCM), as suggested by A.V. Granato. When applied to Fe, this model enables the extrapolation of measured melting lines to the conditions of the Earth's inner core boundary (ICB). The ITCM describes the solid-liquid phase transition…

Genetic Algorithm-Based Inverse Design of Guided Wave Planar Terahertz Filters
Ali Dehghanian, Thomas Darcie, Levi Smith
https://arxiv.org/abs/2506.03372 h…

Genetic Algorithm-Based Inverse Design of Guided Wave Planar Terahertz Filters
We present a genetic algorithm (GA)-based inverse design framework for synthesizing high-performance planar terahertz (THz) filters integrated with coplanar striplines (CPSs). The method efficiently explores high-dimensional design spaces to generate filter geometries matching user-defined S-parameter magnitude and phase responses, while enforcing structural connectivity for compatibility with terahertz system-on-chip (TSoC) platforms. To accelerate optimization, filter performance is evaluated…

This https://arxiv.org/abs/2502.15865 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qfi…

Standard Benchmarks Fail -- Auditing LLM Agents in Finance Must Prioritize Risk
Standard benchmarks fixate on how well large language model (LLM) agents perform in finance, yet say little about whether they are safe to deploy. We argue that accuracy metrics and return-based scores provide an illusion of reliability, overlooking vulnerabilities such as hallucinated facts, stale data, and adversarial prompt manipulation. We take a firm position: financial LLM agents should be evaluated first and foremost on their risk profile, not on their point-estimate performance. Drawing…

Low-EFFourth: A computational framework for generating and studying multilevel model ensembles in low-dimensional systems
Francisco de Melo Vir\'issimo
https://arxiv.org/abs/2506.03313

Low-EFFourth: A computational framework for generating and studying multilevel model ensembles in low-dimensional systems
This paper introduces Low-EFFourth (LEF4), a MATLAB-based computational framework designed for generating and studying multilevel model ensembles in continuous dynamical systems. Initially developed to address questions in climate modelling, LEF4 can also be used in other disciplines such as epidemiology, economics, and engineering, with minimal modifications to the code. The framework provides an efficient and flexible approach for investigating uncertainties arising from initial conditions, m…

This https://arxiv.org/abs/2311.10685 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qfi…

High-Throughput Asset Pricing
We apply empirical Bayes (EB) to mine data on 136,000 long-short strategies constructed from accounting ratios, past returns, and ticker symbols. This ``high-throughput asset pricing'' matches the out-of-sample performance of top journals while eliminating look-ahead bias. Naively mining for the largest Sharpe ratios leads to similar performance, consistent with our theoretical results, though EB uniquely provides unbiased predictions with transparent intuition. Predictability is concentrated i…

[2025-06-04 Wed (UTC), no new articles found for q-fin.GN General Finance]
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This https://arxiv.org/abs/2504.08423 has been replaced.
initial toot: https://mastoxiv.page/@arX…

A proposal of a concept for a balanced internal combustion engine configuration
Conventional internal combustion engines (ICEs) inherently suffer from imbalances due to the reciprocating motion of their components, leading to vibrations, wear, and mechanical inefficiencies. In this paper, we propose a novel engine configuration based on four interconnected hypocycloidal straight-line mechanisms, designed to eliminate both translational force imbalances and torque fluctuations. We present the mechanical concept as a physics problem, followed by theoretical calculations show…

This https://arxiv.org/abs/2502.08342 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Electron Fourier ptychography for phase reconstruction
Phase reconstruction is important in transmission electron microscopy for structural studies. We describe electron Fourier ptychography and its application to phase reconstruction of both radiation-resistant and beam-sensitive materials. We demonstrate that the phase of the exit wave can be reconstructed to high resolution using a modified iterative phase retrieval algorithm using data collected in an alternative optical geometry. This method achieves a spatial resolution of 0.63 nm at a fluenc…

This https://arxiv.org/abs/2501.01643 has been replaced.
initial toot: https://mastoxiv.page/@arX…

A Polarimetry-based Field-deployable Non-interruptive Mirror Soiling Detection Method
The soiling level of heliostat mirrors in Concentrated Solar Power (CSP) fields is one of the key factors that significantly influences optical efficiency. State-of-the-art methods of monitoring heliostats soiling levels still face various challenges, including slow speed, labor-intensive operations, resolution and accuracy constraints or interruptions to solar field operations. We present a rapid, cost-effective, and non-intrusive method for mirror soiling detection based on polarimetric imagi…

[2025-06-04 Wed (UTC), no new articles found for physics.geo-ph Geophysics]
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This https://arxiv.org/abs/2411.03378 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Quasi-electrostatic eigenmode analysis of anisotropic particles
Anisotropic subwavelength particles combine the strong response and tunability of nanostructures with the exotic properties of anisotropic materials. Here we derive closed-form expressions for the quasielectrostatic eigenmodes and eigenpermittivity relations of uniaxial and biaxial spheres and ellipsoids. We show that such particles exhibit novel radiation patterns and axial-eigenpermittivity sum rules, resulting in resonance splitting and eigenvalue degeneracy. Finally, we analytically predict…

This https://arxiv.org/abs/2409.05693 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Photoluminescence-Based Gas Sensing with MoS2 Monolayers
Two-dimensional transition metal dichalcogenides (TMDs) are highly appealing for gas sensors, lab-on-a-chip devices and bio-sensing applications because of their strong light-matter interaction and high surface-to-volume ratio. The ability to grow these van der Waals materials on different substrates and waveguide geometries opens a horizon toward scalable on-chip photonic nanodevices. Here, we report on a versatile technique for real time remote optical gas sensing using two-dimensional TMDs. …

[2025-06-04 Wed (UTC), 5 new articles found for physics.app-ph Applied Physics]
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