Tootfinder

I'm happy to announce structlog 25.4.0 that adds support for exception groups but more importantly fixes an incompatibility with the upcoming Python 3.13.4
https://github.com/hynek/structlog/releases/tag/25.4.0

Release 25.4.0 · hynek/structlog
Highlights The main feature is support for exception groups we stole adapted from Rich, however the main reason for this release at this point in time are backwards-incompatible changes in the upco...

I consider these kinds of events to be nearly useless symbolism, preaching to the choir.
I do accept that these events are useful as means to meet others, but one should not expect these events to have even the slightest impact on the maga/white-nationalist/musk-ites... Nor do I think they have much impact on those who are in "the middle" and do not particularly engage in politics.
"Nearly 1,000 gather at Main Beach to create ‘Resist!’ human banner protesting Trum…

Nearly 1,000 gather at Main Beach to create ‘Resist!’ human banner protesting Trump administration
Around 1,000 people gathered Saturday morning at Santa Cruz Main Beach to spell out the word “Resist!” The event, organized by Indivisible Santa Cruz County, aimed to protest the Trump administration and celebrate Santa Cruz Pride’s 50th anniversary.

Trump's tariffs beat up economy as private sector loses jobs in June
https://www.dailykos.com/stories/2025/7/2/2331299/-Trump-s-tariffs-beat-up-economy-as-private-sector-loses-jobs-in-June?pm_campaign=blog&pm_medium=rss&pm_source=main

MainStreet Bank reports vendor cyber incident that leaked customer info https://therecord.media/Main-street-cyber-incident-bank

Author Michelle Tea on making art your main focus (and not taking your day job too seriously)
https://thecreativeindependent.…

Author Michelle Tea on making art your main focus (and not taking your day job too seriously) – The Creative Independent
Author and publisher Michelle Tea discusses surviving as an artist, building community, and staying true to your voice

Thoma Bravo raised $34.4B across three funds, including $24.3B for its main software company buyout fund and $8.1B for its midsize software-focused fund (Miriam Gottfried/Wall Street Journal)
https://www.

Ich hab inzwischen Ibis-Wiki über meine Domain rabenheist.de laufen und hab angefangen, erste Artikel in meine persönliche Wissensdatenbank einzugeben.
Die Föderation mit der Flagship-Instanz unter ibis.wiki klappt auch, meine Instanz wird inzwischen unter den noch wenigen bestehenden Instanzen geführt.
https://rabenheist.de/

Really fast boot. Not for me. I'll stick to containers and the odd KVM VM using virt-manager.
https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md#running-firecracker

firecracker/docs/getting-started.md at main · firecracker-microvm/firecracker
Secure and fast microVMs for serverless computing. - firecracker-microvm/firecracker

Browns' Joe Flacco to showcase work ethic through QB battle: Being mentor is 'not the main focus' https://www.nfl.com/news/browns-joe-flacco-to-showcase-work-ethic-in-qb-battle-being-mentor-is-not-the-main-foc…

Love it when regulation kicks us in the ass.
The new Pangu-Pro-MoE model from Ascend Tribe (Huawei) ships with a license that forbids use inside the EU.
Why? Probably to dodge any messy GDPR debates.
After the WHOIS debacle sparked by GDPR, we can add yet another item to the ever-growing list of regulation-created problems.
"3. Conditions for License Grant. You represent and warrant that You will not, access, download, install, run, deploy, integrate, modify, or other…

GitCode - 全球开发者的开源社区,开源代码托管平台
GitCode是面向全球开发者的开源社区,包括原创博客,开源代码托管,代码协作,项目管理等。与开发者社区互动,提升您的研发效率和质量。

An oldie, but goldie for this rainy Saturday — once going, the deep floating perma strings, hypnotic main sequence, the drops and later some minimal 303 accents add some twist/interestingness to some otherwise fairly standard deep house...
Nhar - Wisdom (2010)
https://www.youtube.com/watch?v=W4sP0b5-UW

Wall St and Silicon Valley ride high as tariffs hit Main Street (George Steer/Financial Times)
https://www.ft.com/content/aefad7d1-e809-4a16-8acd-6e2ef9f28ebe
http://www.memeorandum.com/250803/p30#a250803p30

Chance is number 1.
Choice will always be number 2. But it's still our main preoccupation.
If you choose not to decide, you still have made a choice! -Neil Peart, from Freewill lyrics
Geddy Lee puts the "!" in everything, and it's worth it.
#Rush #ChooseMusic

Chaque campagne est associée Š des frais d'avocats. Notre but : mettre fin Š une procédure judiciaire en cours depuis 2017 et tu pourrais nous donner un coup de main...
Voici une série de diapositives qui expliquent notre situation actuelle, nos objectifs futurs et pourquoi votre soutien est crucial, ne serait-ce que pour partager notre message. 🙏🏽💙

@… @… Possibly forking, but building from scratch appeals to me. (Except the UI part, which is the main reason I'm not doing it.)
I have opinions about how this kind of thing should work. Specifically, I don't want a "read i…

At the Semantic Digital Humanities 2025 Workshop, Jose Maldonado-Rodríguez is presenting "Natural Language Querying for Humanities #KnowledgeGraphs A case study on the GOLEM KG". Main contribution is a bilingual dataset (English-Spanish) specifically designed to evaluate automatic text-to-SPARQL translation systems for GOLEM, a specialized humanities KG.
paper:

The way most companies work, they usually act as if their main competitor does not even exist, they only inform their investors of weaker competitors, and the interesting bits are in what they do not tell you.

Still getting images from the camera on Plowshare Peak, the main repeater link between the Cuyama Valley communities and the rest of Santa Barbara county-it's an important hilltop. The #GiffordFire seems to have burned right up to the site on all sides.

Saffron Green Bean Rice #plantbased

Saffron Green Bean Rice
This saffron green bean rice is an excellent side or main course, and has all the makings of a dinnertime staple.

Some of you probably remember WAIS. An Internet search engine from the Gopher era (more specific: a search protocol). TIL: Thinking Machines (those with the massive red blinkenlights servers) were the main driver and developer of WAIS: https://en.wikipedia.org/wiki/Wide_area_information…

RS Sagittarii: Revealing the component spectra and the mass transfer
Hicran Bak{\i}\c{s}, \"Omr\"um Hilal Y{\i}ld{\i}z, Volkan Bak{\i}\c{s}, G\"okhan Y\"ucel
https://arxiv.org/abs/2506.01516

RS Sagittarii: Revealing the component spectra and the mass transfer
We present an analysis of high-resolution (R ~ 48000) spectroscopic and photometric data of RS Sgr, a short-period Algol-type binary system. For the first time, precise spectroscopic and absolute parameters of the system have been determined. The primary component is identified as a B3 main-sequence star with an effective temperature of 19000K, while the secondary is classified as an A0-type star with a temperature of 9700 K. The secondary appears to have recently evolved off the main sequence …

Republicans are pissed that a Democrat is using their shady tricks
https://www.dailykos.com/stories/2025/6/2/2325121/-Republicans-are-pissed-that-a-Democrat-is-using-their-shady-tricks?pm_campaign=blog&pm_medium=rss&pm_source=main

Me: if I go through Września, I'll be 5 minutes earlier in Poznań, and I'll have a better chance of catching a transfer. But I'd have to run to catch the train to Września.
Me a minute later: the Września – Poznań train is delayed. No point in running, let's just go straight to Poznań.
Me at Poznań Wschód station: oh, the delayed train from Września goes straight to Leszno, so it is my transfer.
Fortunately, our train went first, so I could easily transfer at the main station.

I'm still gathering my thoughts on these AI-written papers passing peer review.
One thing that stands out though, is that it's a pretty clear ethics violation (since it's deception of reviewers without a debrief).
Yes it's a minor and possibly justifiable violation, but that kind of thing is only justifiable if your main claim is evaluated and published according to scientific principles.
The main claim here is "AI can write papers that pass peer revi…

@… If you poke around in https://github.com/11ty/eleventy/tree/main/packages/client all of the infra is there to create an @11ty/server package u…

Series C, Episode 04 - Dawn of the Gods
GROFF: A finger?
TARRANT: A finger. And as you can see, it is better designed for pressing buttons than holding writing implements. So why can't we use computers?
https://blake.torpidity.net/m/304/299 B7B2

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

Juten Tach allerseits ☕
Die Beine werden heute etwas weniger beansprucht: Wertheim ist klein und schnell erkundet.
Ich hoffe auf einen niederschlagsfreien Nachmittag auf dem Sonnendeck bei der Weiterfahrt auf dem Main.
#CHaufFluessen25

Sonnet 060 - LX
Like as the waves make towards the pebbled shore,
So do our minutes hasten to their end;
Each changing place with that which goes before,
In sequent toil all forwards do contend.
Nativity, once in the main of light,
Crawls to maturity, wherewith being crowned,
Crooked eclipses 'gainst his glory fight,
And Time that gave doth now his gift confound.
Time doth transfix the flourish set on youth
And delves the parall…

Did you know I studied electrical engineering besides work? On Thursday, I finished my bachelor's thesis with the final presentation and it's time to finally present my project: ZEReader, a microcontroller-based E-Reader.
Inspired by the Open Book Project by Joey Castillo, I designed my own platform from scratch. My focus was on building a reader usable in everyday life that is capable of handling books in the EPUB format. The project is still in a very early phase, but it shows…

Today was an extremely hot day in the Netherlands: 35.5°C at De Bilt (main met station, center), 36.2 at the coast, 37.6 in Eindhoven, in the south!
1/

🎉 New Kitten¹ Release: A little housekeeping 🧹
Today’s release only concerns production servers:
• Kitten no longer counts all *hits* in its stats. You can still see which of your *pages* are most popular, etc., and see stats for missing URLs, etc., as before from either the web interface or the interactive shell, but not every hit is logged. Instead, you can see the latest 25 served routes in Kitten’s Settings (at /🐱/settings/state/requests/ via the web on your server).
- …

app/CHANGELOG.md at main
app - A web development kit that’s small, purrs, and loves you.

Max Entropy Moment Kalman Filter for Polynomial Systems with Arbitrary Noise
Sangli Teng, Harry Zhang, David Jin, Ashkan Jasour, Ram Vasudevan, Maani Ghaffari, Luca Carlone
https://arxiv.org/abs/2506.00838

Max Entropy Moment Kalman Filter for Polynomial Systems with Arbitrary Noise
Designing optimal Bayes filters for nonlinear non-Gaussian systems is a challenging task. The main difficulties are: 1) representing complex beliefs, 2) handling non-Gaussian noise, and 3) marginalizing past states. To address these challenges, we focus on polynomial systems and propose the Max Entropy Moment Kalman Filter (MEM-KF). To address 1), we represent arbitrary beliefs by a Moment-Constrained Max-Entropy Distribution (MED). The MED can asymptotically approximate almost any distribution…

Generic vanishing theory in positive characteristic
Jefferson Baudin
https://arxiv.org/abs/2507.00771 https://arxiv.org/pdf/2507.0077…

Generic vanishing theory in positive characteristic
We simplify and improve the main fundamental theorems of positive characteristic generic vanishing theory. As a quick corollary of the theory, we prove that a normal variety $X$ of maximal Albanese dimension satisfies $H^0(X, ω_X) \neq 0$ and that if $\mathrm{Alb}(X)$ is ordinary, then $S^0(X, ω_X) \neq 0$.

CRScore : Reinforcement Learning with Verifiable Tool and AI Feedback for Code Review
Manav Nitin Kapadnis, Atharva Naik, Carolyn Rose
https://arxiv.org/abs/2506.00296

CRScore++: Reinforcement Learning with Verifiable Tool and AI Feedback for Code Review
Reinforcement learning (RL) to improve code review comment generation requires handling unstructured outputs, making reinforcement learning (RL) feedback challenging. The two main RL approaches, namely RL with Verifiable Feedback (RLVR) and RL with AI Feedback (RLAIF), offer trade-offs: RLVR provides reliable feedback for structured tasks like code generation, while RLAIF works for unstructured outputs but is subjective. We bridge this gap with CRScore++, an RL framework that leverages both LLM…

The Cost of Restaking vs. Proof-of-Stake
Akaki Mamageishvili, Benny Sudakov
https://arxiv.org/abs/2505.24440 https://arxiv.org/pdf/25…

The Cost of Restaking vs. Proof-of-Stake
We compare the efficiency of restaking and Proof-of-Stake (PoS) protocols in terms of stake requirements. First, we consider the sufficient condition for the restaking graph to be secure. We show that the condition implies that it is always possible to transform such a restaking graph into secure PoS protocols. Next, we derive two main results, giving upper and lower bounds on required extra stakes that one needs to add to validators of the secure restaking graph to be able to transform it into…

An extended Vinogradov's mean value theorem
Changkeun Oh, Kiseok Yeon
https://arxiv.org/abs/2506.01751 https://arxiv.org/pdf/2506…

An extended Vinogradov's mean value theorem
In this paper, we provide novel mean value estimates for exponential sums related to the extended main conjecture of Vinogradov's mean value theorem, by developing the Hardy-Littlewood circle method together with a refined shifting variables argument. Let $d\geq 2$ be a natural number and $\boldsymbolα=(α_d,\ldots, α_1)\in \mathbb{R}^d.$ Define the exponential sum \begin{equation*} f_d(\boldsymbolα;N):=\sum_{1 \leq n \leq N}e(α_d n^d + \cdots+ α_1 n). \end{equation*} For $p>0$, consider…

Refinements of provability and consistency principles for the second incompleteness theorem
Taishi Kurahashi
https://arxiv.org/abs/2507.00955 https://

Refinements of provability and consistency principles for the second incompleteness theorem
This paper continues the author's previous study \cite{Kura20}, showing that several weak principles inspired by non-normal modal logic suffice to derive various refined forms of the second incompleteness theorem. Among the main results of the present paper, we show that the set $\{\mathbf{E},\mathbf{C}, \mathbf{D3}\}$ suffices to establish the unprovability of the consistency statement $\neg\, \mathrm{Pr}_T(\ulcorner 0=1 \urcorner)$. We also prove that the set $\{\mathbf{E}^{\mathrm{U}}, \math…

Embedding a Praeger-Xu graph into a surface
Zhaochen Ding, Zheng Guo, Luyi Liu
https://arxiv.org/abs/2507.01716 https://arxiv.org/pdf…

Embedding a Praeger-Xu graph into a surface
Rotary maps (orientably regular maps) are highly symmetric graph embeddings on orientable surfaces. This paper classifies all rotary maps whose underlying graphs are Praeger-Xu graphs, denoted $\operatorname{C}(p,r,s)$, for any odd prime $p$ that does not divide $r$. Our main result establishes a one-to-one correspondence between the isomorphism classes of these maps and the multiplicity-free representations of the dihedral group $\operatorname{D}_{2r}$ over the finite field $\mathbb{F}_p$. Thi…

Turkish authorities ordered the detention of several opposition party members in Istanbul
and raided opposition-run municipalities on Saturday, state media said,
part of a widening legal crackdown against the opposition and city's jailed mayor.
Istanbul Mayor Ekrem Imamoglu, who is also President Tayyip Erdogan's main political rival and leads him in some polls, was jailed in March pending trial over charges of corruption and aiding a terrorist group, all of which h…

Turkish authorities order detention of dozens of opposition officials in widening crackdown
ANKARA (Reuters) -Turkish authorities ordered the detention of several opposition party members in Istanbul and raided opposition-run municipalities on...

🇺🇦 #NowPlaying on #BBC6Music's #LaurenLaverne
Lalo Schifrin:
🎵 Bullitt (Main Title)
#LaloSchifrin
https://latenighttales.bandcamp.com/track/lalo-schifrin-bullitt-main-title-bullitt
https://open.spotify.com/track/50QgdKkqg89XGVyYonD1iP

I think one main issue I have with the whole "EURO Stack" stuff is that it is not looking for an alternative. It's "we want what we got just with EU companies". But the fact that the Internet and its services have been turned into a mall is the big fucking problem. I don't want a "European Facebook" built on the same logic of exploitation.

Coarse cone quotients
Ulrich Bunke
https://arxiv.org/abs/2507.01412 https://arxiv.org/pdf/2507.01412…

Coarse cone quotients
We study the coarse motive of the quotient $\mathcal{O}^{\infty}(X)//G$ of the cone of a uniform bornological coarse space $X$ with $G$-action. If $X$ admits a sufficiently ergodic probability measure, then we show that the coarse assembly map for $\mathcal{O}^{\infty}(X)//G$ is not an equivalence. The main ideas are taken from a recent paper by C. Kitsios, T. Schick and F. Vigolo (arXiv:2504.21811) and adapted to the formalism of coarse homotopy theory based on bornological coarse spaces devel…

Pseudorandom bits for non-commutative programs
Chin Ho Lee, Emanuele Viola
https://arxiv.org/abs/2506.01832 https://arxiv.org/pdf/250…

Pseudorandom bits for non-commutative programs
We obtain new explicit pseudorandom generators for several computational models involving groups. Our main results are as follows: 1. We consider read-once group-products over a finite group $G$, i.e., tests of the form $\prod_{i=1}^n g_i^{x_i}$ where $g_i\in G$, a special case of read-once permutation branching programs. We give generators with optimal seed length $c_G \log(n/\varepsilon)$ over any $p$-group. The proof uses the small-bias plus noise paradigm, but derandomizes the noise to av…

Kollege aus Karlsruhe gerade dienstlich in Hannover - wenn #Karlsruhe auf Platz 2 ist, wo ist denn dann Hannover? Die haben hier so Fahrradhighways durch die ganze Stadt.
Ja. #Hannover auch auf Platz 2. In der Kategorie der Städte über 500 000 Einwohner*innen. Noch hinter Frankfurt am Main und …

Energy momentum tensor correlators in $\phi^4$ theory II: The spin-two sector
Nikos Irges, Leonidas Karageorgos
https://arxiv.org/abs/2507.01713 https://…

Energy momentum tensor correlators in $ϕ^4$ theory II: The spin-two sector
We extend the computation of the C_T charge of the 2-point function of the Energy-Momentum Tensor to 4-loops. We show that C_T decomposes into two sectors, the conformal sector, which encodes the value of the central charge at fixed points and an RG-sector that contains logarithmic and constant corrections proportional to the beta-function. This latter constitutes the main new result of this work and is inaccessible via CFT methods alone. Furthermore, we demonstrate that C_T satisfies an eigenv…

🌿 Un nouveau départ pour les victimes
Sortir d’une dérive sectaire et reconstruire sa vie est un chemin semé d’embûches. Mais sans réseau de soutien, c’est une double peine. À Chardons Bleus, nous leur tendons la main pour réinventer leur avenir.
1/2

PathDB: A system for evaluating regular path queries
Roberto Garc\'ia, Renzo Angles, Vicente Rojas, Sebasti\'an Ferrada
https://arxiv.org/abs/2507.01755

PathDB: A system for evaluating regular path queries
PathDB is a Java-based graph database designed for in-memory data loading and querying. By utilizing Regular Path Queries (RPQ) and a closed path algebra, PathDB processes paths through its three main components: the parser, the logical plan, and the physical plan. This modular design allows for targeted optimizations and modifications without impacting overall functionality. Benchmark experiments illustrate PathDB's execution times and flexibility in handling dynamic and complex path queries, …

Yes, it’s absurd.
LLMs don’t scale to reach “AGI”. That is mathematically proven[1], so it doesn’t matter how large your data center is.
But that’s not the main reason why this is absurd—as a society we shouldn’t spend these enormous resources and lasting environmental damage on this _even if it would work_.
[1] https://irisvanrooijcogsci.com/2023/09/17/debunking-agi-inevitability-claims/

This https://arxiv.org/abs/2504.13703 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csIR_…

Consensus-aware Contrastive Learning for Group Recommendation
Group recommendation aims to provide personalized item suggestions to a group of users by reflecting their collective preferences. A fundamental challenge in this task is deriving a consensus that adequately represents the diverse interests of individual group members. Despite advancements made by deep learning-based models, existing approaches still struggle in two main areas: (1) Capturing consensus in small-group settings, which are more prevalent in real-world applications, and (2) Balancin…

Evidence for enhanced mass transfer in the disc preceding the transition to the soft state in MAXI J1820 070
Pengcheng Yang, Guobao Zhang, David M. Russell, Mariano M\'endez, M. Cristina Baglio, Diego Altamirano, Yijung Yang, Payaswini Saikia, Kevin Alabarta
https://arxiv.org/abs/2507.00532

Evidence for enhanced mass transfer in the disc preceding the transition to the soft state in MAXI J1820+070
We investigate the 2018-2019 main outburst and the subsequent mini-outbursts of the black hole low-mass X-ray binary MAXI J1820+070 using optical/ultraviolet data from the Las Cumbres Observatory (LCO), the American Association of Variable Star Observers (AAVSO), and $\textit{Swift}$/UVOT, as well as X-ray data from $\textit{Insight}$-HXMT and $\textit{Swift}$/XRT. Given the high-cadence observations, we identify a broad dip-like feature in both the optical and X-ray light curves preceding the …

Blind Passive Beamforming for MIMO System
Wenhai Lai, Jiawei Yao, Kaiming Shen
https://arxiv.org/abs/2506.00987 https://arxiv.org/pdf…

Blind Passive Beamforming for MIMO System
Passive beamforming for the intelligent surface (IS)-aided multiple-input multiple-output (MIMO) communication is a difficult nonconvex problem. It becomes even more challenging under the practical discrete constraints on phase shifts. Unlike most of the existing approaches that rely on the channel state information (CSI), this work advocates a blind beamforming strategy without any CSI. Simply put, we propose a statistical method that learns the main feature of the wireless environment from th…

Perturbations of Vector Bundle whose Curvature Form Solves a Polynomial Equation
R\'emi Delloque
https://arxiv.org/abs/2507.01534 https://

Perturbations of Vector Bundle whose Curvature Form Solves a Polynomial Equation
We investigate the behaviour of local perturbations of a wide class of geometric PDEs on holomorphic Hermitian vector bundles over a compact complex manifold. Our main goal is to study the existence of solutions near an initial solution under small deformations of both the holomorphic structure of the bundle and the parameters of the equation. Inspired by techniques from geometric invariant theory and the moment map framework, under suitable assumptions on the initial solution, we establish a l…

This https://arxiv.org/abs/2501.18787 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Quantitative Derivation of the Two-Component Gross--Pitaevskii Equation in the Hard-Core Limit with Uniform-in-Time Convergence Rate
We derive the time-dependent two-component Gross--Pitaevskii (GP) equation as an effective description of the dynamics of a dilute two-component Bose gas near its ground state, which exhibits a two-component Bose-Einstein condensate, in the GP limit. Our main result establishes a uniform-in-time bound on the convergence rate between the many-body dynamics and the effective description, explicitly quantified in terms of the particle number $N$, and also implies a uniform-in-time bound for the on…

Stable deformed $\mathfrak{gl}_N$ homology of torus knots
William Ballinger, Eugene Gorsky, Matthew Hogancamp, Joshua Wang
https://arxiv.org/abs/2507.00175

Stable deformed $\mathfrak{gl}_N$ homology of torus knots
We compute the $E_2$ page in the Rasmussen spectral sequence from triply graded to $\mathfrak{gl}_N$ Khovanov--Rozansky stable homology of torus knots. This confirms a weak form of the conjecture of the second author, Oblomkov, and Rasmussen. The main tool is the link-splitting deformation, or $y$-ification, of link homology; in the $y$-ified context, the relevant Rasmussen spectral sequence collapses and we explicitly compute the $y$-ified $\mathfrak{gl}_N$ stable Khovanov--Rozansky homology o…

Missing Data in Signal Processing and Machine Learning: Models, Methods and Modern Approaches
A. Hippert-Ferrer, A. Sportisse, A. Javaheri, M. N. El Korso, D. P. Palomar
https://arxiv.org/abs/2506.01696

Missing Data in Signal Processing and Machine Learning: Models, Methods and Modern Approaches
The goal of this tutorial is to provide an overview of recent methods for handling missing data in signal processing methods, from their origins to the challenges ahead. Missing data approaches are grouped by three main categories: i) missing-data imputation, ii) estimation with missing values and iii) prediction with missing values. We focus on methodological and experimental results through specific case studies on real-world applications. Promising and future research directions, including a…

Bob Vylan's official statement:
[sorry, had to edit as I mistakenly wrote Kneecap instead of Bob Vylan. <input coffee>]

Geometry Meets Incentives: Sample-Efficient Incentivized Exploration with Linear Contexts
Benjamin Schiffer, Mark Sellke
https://arxiv.org/abs/2506.01685 h…

Geometry Meets Incentives: Sample-Efficient Incentivized Exploration with Linear Contexts
In the incentivized exploration model, a principal aims to explore and learn over time by interacting with a sequence of self-interested agents. It has been recently understood that the main challenge in designing incentive-compatible algorithms for this problem is to gather a moderate amount of initial data, after which one can obtain near-optimal regret via posterior sampling. With high-dimensional contexts, however, this \emph{initial exploration} phase requires exponential sample complexity…

Ransomware Group Anubis has leaked what they extracted from Disneyland Paris
#ransomware

Ransomware.live 👀
Ransomware.live tracks ransomware groups and their activity. It was created by Julien Mousqueton, a security researcher. The website provides information on the groups' infrastructure, victims, and payment demands. It also includes a live map that shows the latest ransomware attacks.

Simulation and analysis of turbulent flame and its effect on the wall of aero engine combustor
A. Mokhtari, A. Abdallah-elhirtsi, F. Larbi, R. Renane, R. Allouche
https://arxiv.org/abs/2507.01892

Simulation and analysis of turbulent flame and its effect on the wall of aero engine combustor
The main objective of this study is to simulate the behavior of the reactive flow of the turbulent flame in aeronautical combustion chamber of the ALLISON-T56 turboprop, and contribute to the analysis of flame structure and determine for given pressure and temperature of fresh gas the behavior of the thermodynamic parameters of combustion. The numerical approach is based on the resolution of basic equations of turbulent combustion using Ansys-Fluent code where the turbulence model K-e is chosen…

Learning DNF through Generalized Fourier Representations
Mohsen Heidari, Roni Khardon
https://arxiv.org/abs/2506.01075 https://arxiv.…

Learning DNF through Generalized Fourier Representations
The Fourier representation for the uniform distribution over the Boolean cube has found numerous applications in algorithms and complexity analysis. Notably, in learning theory, learnability of Disjunctive Normal Form (DNF) under uniform as well as product distributions has been established through such representations. This paper makes five main contributions. First, it introduces a generalized Fourier expansion that can be used with any distribution $D$ through the representation of the distr…

@… & @… I didn't manage to find a straightforward answer to this, and was wondering if you could help.
(I can also open these on a dedicated issue tracker or mailing-list if you prefer)
Mullvad VPN tr…

Figured I'd take a photo of the NESessity v1.4 board. Pretty easy to build (this was a while ago as there's now a v1.6 board) and very clean. This one has a real CPU (RP2A03G) and PPU (RP2C02G-0) installed from the OG NES though you can install the clone versions (UA6527 and UA6528 respectively). The VRAM and WRAM are new chips from Alliance.
#nintendo

Star-Planet Interactions: A Computational View
A. A. Vidotto (Leiden Observatory)
https://arxiv.org/abs/2506.00470 https://arxiv.org/…

Star-Planet Interactions: A Computational View
There are several physical processes that mediate the interaction between an exoplanet and its host star, with the four main ones being due to magnetic, particle (stellar outflow), radiative and tidal interactions. These interactions can be observed at different wavelengths, from X-ray to radio. Their strengths depend on the architecture of planetary systems, as well as the age and activity level of the host stars. In particular, exoplanets in close-in orbits and/or orbiting active host stars c…

Study of $\tau\rightarrow e M^ M^-$ decays in the N-B-LSSM
Rong-Zhi Sun, Shu-Min Zhao, Shuang Di, Xing-Xing Dong
https://arxiv.org/abs/2507.01276 https://…

Study of $τ\rightarrow e M^+ M^-$ decays in the N-B-LSSM
Within the framework of the next to the minimal supersymmetric (SUSY) extension of the Standard Model (SM) with a local B-L gauge symmetry (N-B-LSSM), we study lepton flavor violating (LFV) $τ\rightarrow e M^+ M^-$ decays: $τ\rightarrow e π^+π^-$,~$τ\rightarrow e π^+K^-$,~$τ\rightarrow e K^+K^-$. According to the latest experimental data, the influence of different sensitive parameters on the branching ratios is considered. It can be seen from the numerical analysis that the main sensiti…

Sectional Kolmogorov N-widths for parameter-dependent function spaces: A general framework with application to parametrized Friedrichs' systems
Christian Engwer, Mario Ohlberger, Lukas Renelt
https://arxiv.org/abs/2507.00678

Sectional Kolmogorov N-widths for parameter-dependent function spaces: A general framework with application to parametrized Friedrichs' systems
We investigate parametrized variational problems where for each parameter the solution may originate from a different parameter-dependent function space. Our main motivation is the theory of Friedrichs' systems, a large abstract class of linear PDE-problems whose solutions are sought in operator- (and thus parameter-)dependent graph spaces. Other applications include function spaces on parametrized domains or discretizations involving data-dependent stabilizers. Concerning the set of all parame…

An inverse problem for the Standard Model of particle physics
Xi Chen, Matti Lassas, Lauri Oksanen, Gabriel P. Paternain
https://arxiv.org/abs/2505.24454 h…

An inverse problem for the Standard Model of particle physics
We pose and solve an inverse problem for the classical field equations that arise in the Standard Model of particle physics. Our main result describes natural conditions on the representations, so that it is possible to recover all the fields from measurements in a small set within a causal domain in Minkowski space. These conditions are satisfied for the representations arising in the Standard Model.

This https://arxiv.org/abs/2504.06354 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

Multihead self-attention in cortico-thalamic circuits
Both biological cortico-thalamic networks and artificial transformer networks use canonical computations to perform a wide range of cognitive tasks. In this work, we propose that the structure of cortico-thalamic circuits is well suited to realize a computation analogous to multihead self-attention, the main algorithmic innovation of transformers. We start with the concept of a cortical unit module or microcolumn, and propose that superficial and deep pyramidal cells carry distinct computationa…

I've been doing some ridiculously neat reverse engineering recently.
Check this out: https://github.com/httptoolkit/frida-interception-and-unpinning/blob/main/android/android-disable-flutter-certi…

frida-interception-and-unpinning/android/android-disable-flutter-certificate-pinning.js at main · httptoolkit/frida-interception-and-unpinning
Frida scripts to directly MitM all HTTPS traffic from a target mobile application - httptoolkit/frida-interception-and-unpinning

Stochastic Sandpile model: exact sampling and complete graph
Concetta Campailla, Nicolas Forien
https://arxiv.org/abs/2507.01572 https://

Stochastic Sandpile model: exact sampling and complete graph
We study the dynamics of the Stochastic Sandpile Model on finite graphs, with two main results. First, we describe a procedure to exactly sample from the stationary distribution of the model in all connected finite graphs, extending a result obtained by Levine and Liang for Activated Random Walks. Then, we study the model on the complete graph with a number of vertices tending to infinity and show that the stationary density tends to $1/2$. Along the way, we introduce a new point of view on the…

Wild times.
Metallica saved Tomorrowland.
https://www.rollingstone.com/music/music-news/belgium-tomorrowland-saved-metallica-fire-main-stage-1235389522/
Elektrochemie LK - Schall (Thomas Schumacher) was feat…

Belgium’s Tomorrowland Saved by Metallica After Fire Destroys Main Stage
Despite a massive fire that destroyed its main stage, Belgium EDM festival Tomorrowland is taking place this weekend, thanks largely to Metallica.

This https://arxiv.org/abs/2505.00947 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

Summary Report of the Physics Beyond Colliders Study at CERN
The Physics Beyond Collider (PBC) Study Group was initially mandated by the CERN Management to prepare the previous European Particle Physics Strategy Update for CERN projects other than the high-energy frontier colliders. The main findings were summarized in an PBC Summary Report submitted to the Strategy Update. Following the Update process, the PBC Study Group was confirmed on a permanent basis with an updated mandate taking into account the strategy recommendations. The Study Group is now i…

The Lockman-SpReSO project. Spectroscopic analysis of Type 1 AGN
Castalia Alenka Negrete, Hector J. Ibarra-Medel, Erika Benitez, Irene Cruz-Gonzalez, Yair Krongold, J. Jesus Gonzalez, Jordi Cepa, Carmen Padilla-Torres, Miguel Cervino, Mirjana Povic, Martin Herrera-Endoqui, Nancy Jenaro-Ballesteros, Takamitsu Miyaji, Mauricio Elias-Chavez, Miguel Sanchez-Portal, Bernabe Cedres, Jacub Nadolny, Mauro Gonzalez-Otero, Bereket Assefa, Hector Hernandez-Toledo, J. Antonio de Diego, J. Ignacio …

The Lockman-SpReSO project. Spectroscopic analysis of Type 1 AGN
We present the first optical-UV spectral systematic analysis of 30 Type 1 AGN selected in the FIR and X-ray in the Lockman-SpReSO Survey. The sample of faint objects (m_B = 19.6-21.8) covers a large redshift range of 0.33 > z > 4.97 with high S/N (~21 on average). A detailed spectral analysis based on the Quasar Main Sequence phenomenology prescription was applied to deblend the principal optical-UV emitting regions. Our sample spans a bolometric luminosity range of 44.85 < log Lbol < 47.87, ab…

On solvable Lie algebras of small breadth
Borworn Khuhirun, Korkeat Korkeathikhun, Songpon Sriwongsa, Keng Wiboonton
https://arxiv.org/abs/2507.00602 https…

On solvable Lie algebras of small breadth
The concept of breadth has been used in the classification of p-groups and nilpotent Lie algebras. In this paper, we investigate this notion for finite-dimensional solvable Lie algebras. Our main focus is to characterize solvable Lie algebras of breadth less than or equal to 2. More importantly, we provide a complete classification of such Lie algebras that are pure and nonnilpotent over the complex numbers.

Die Konzentration im Medien- und Werbemarkt durch Tech-Giganten wie Google untergräbt unabhängigen Journalismus und Lokalmedien. Roland Koch (Ex-Ministerpräsident und Chef der Ludwig-Erhard-Stiftung) fordert mehr Regulierung – nur so bleibt Demokratie mehr als Filterblase und Algorithmus. #FAZ (€)
Auf die Versäumnisse der deutschen Verlage geht er natürlich nicht ein.

Medien in der Krise: Googles Dominanz gefährdet die Demokratie
Die Medienlandschaft ist im Umbruch, globale Tech-Konzerne beherrschen den Markt. Ludwig Erhard würde das große Sorgen machen. Um die Meinungsvielfalt zu retten, ist Ordnungspolitik gefragt.

Quasi-canonical lifting of projective varieties in positive characteristic
Ryo Ishizuka, Kazuma Shimomoto
https://arxiv.org/abs/2506.01345 https://

Quasi-canonical lifting of projective varieties in positive characteristic
The main aim of this article is to give new classes of smooth projective varieties over characteristic $p>0$ that admit flat liftings over the Witt vectors together with additional data (logarithmic structure and the Frobenius morphism) by showing a descending property of such Frobenius liftability. We establish a refined form of the classical result due to Mehta-Srinivas on the existence of canonical liftings. For this purpose, we also establish a result on the algebraization of certain $p$-ad…

This is the main square in Piran, Slovenia, early morning today. Only 10 minutes away, the 22nd Extended Semantic Web Conference ESWC 2025 will take place, starting on Sunday, June 1st, 2025. I'm looking forward to meeting dear colleagues as well as old and new friends, listening to exciting keynotes, great presentations, and many more activities.

A Rigorous Error Bound for the TG Kernel in Prime Counting
Bugra Kilictas, Faruk Alpay
https://arxiv.org/abs/2506.22634 https://arxiv…

A Rigorous Error Bound for the TG Kernel in Prime Counting
We establish rigorous error bounds for prime counting using a truncated Gaussian (TG) kernel in the explicit formula framework. Our main theorem proves that the approximation error remains globally below 1/2 for all sufficiently large arguments, guaranteeing exact computation of π(x) through simple rounding, without relying on unproven hypotheses. The TG kernel construction employs Gaussian-like test functions with compact support, engineered with vanishing moments to eliminate main terms. F…

This https://arxiv.org/abs/2503.04672 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Finding White Dwarfs' Hidden Companions using an Unsupervised Machine Learning Technique
White dwarfs (WD) with main-sequence (MS) companions are crucial probes of stellar evolution. However, due to the significant difference in their luminosities, the WD is often outshined by the MS star. The aim of this work is to find hidden companions in Gaia's sample of WD candidates. Our methodology involves applying an unsupervised machine learning algorithm for dimensionality reduction and clustering, known as Self-Organizing Map (SOM), to Gaia BP/RP (XP) spectra. This strategy allows us to…

A Computational Search for Minimal Obstruction Graphs for the Lov\'{a}sz--Schrijver SDP Hierarchy
Yu Hin Au, Levent Tun\c{c}el
https://arxiv.org/abs/2505.24735

A Computational Search for Minimal Obstruction Graphs for the Lovász--Schrijver SDP Hierarchy
We study the lift-and-project relaxations of the stable set polytope of graphs generated by $\text{LS}_+$, the SDP lift-and-project operator devised by Lovász and Schrijver. In particular, we focus on searching for $\ell$-minimal graphs, which are graphs on $3\ell$ vertices whose stable set polytope has rank $\ell$ with respect to $\text{LS}_+$. These are the graphs which are the most challenging for the $\text{LS}_+$ operator according to one of the main complexity measures (smallest graphs w…

K-order Ranking Preference Optimization for Large Language Models
Shihao Cai, Chongming Gao, Yang Zhang, Wentao Shi, Jizhi Zhang, Keqin Bao, Qifan Wang, Fuli Feng
https://arxiv.org/abs/2506.00441

K-order Ranking Preference Optimization for Large Language Models
To adapt large language models (LLMs) to ranking tasks, existing list-wise methods, represented by list-wise Direct Preference Optimization (DPO), focus on optimizing partial-order or full-order list ranking consistency for LLMs to enhance their ranking abilities. However, we argue that optimizing top-K ranking consistency could be more appropriate for real-world applications. There are two main reasons: (1) users are typically concerned with only the top-K results, making top-K ranking more im…

Near-feasible Fair Allocations in Two-sided Markets
Javier Cembrano, Andr\'es Moraga, Victor Verdugo
https://arxiv.org/abs/2506.01178 https://

Near-feasible Fair Allocations in Two-sided Markets
We study resource allocation in two-sided markets from a fundamental perspective and introduce a general modeling and algorithmic framework to effectively incorporate the complex and multidimensional aspects of fairness. Our main technical contribution is to show the existence of a range of near-feasible resource allocations parameterized in different model primitives to give flexibility when balancing the different policymaking requirements, allowing policy designers to fix these values accord…

This https://arxiv.org/abs/2503.15613 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Prompt Periodicity in the GRB 211211A Precursor: Black-hole or magnetar engine?
The merger origin long GRB 211211A was a class (re-)defining event. A precursor was identified with a $\sim 1$ s separation from the main burst, as well as a claimed candidate quasi-periodic oscillation (QPO) with a frequency $\sim20$ Hz. Here, we explore the implications of the precursor, assuming the quasi-periodicity is real. The precursor variability timescale requires relativistic motion with a Lorentz factor $Γ\gtrsim80$, and implies an engine driven jetted outflow. The declining amplitu…

Asteroids fail to retain cometary impact signatures
Sarah Joiret, Guillaume Avice, Ludovic Ferri\`ere, Zo\"e M. Leinhardt, Simon Lock, Alexandre Mechineau, Sean N. Raymond
https://arxiv.org/abs/2507.00753

Asteroids fail to retain cometary impact signatures
A bombardment of comets is thought to have occurred in the inner solar system as a result of a dynamical instability among the giant planets after gas disk dispersal. Vesta, the second largest asteroid in the main asteroid belt, likely differentiated before gas disk dispersal, implying its crust witnessed the cometary bombardment. The composition of HED meteorites, which represent fragments of Vesta's crust, could therefore have been altered by cometary impacts. Here we combine noble gas mass s…

Physics-Informed Neural Networks for the Relativistic Burgers Equation in the Exterior of a Schwarzschild Black Hole
Shuyang Xiang
https://arxiv.org/abs/2506.00951

Physics-Informed Neural Networks for the Relativistic Burgers Equation in the Exterior of a Schwarzschild Black Hole
We introduce a Physics-Informed Neural Networks(PINN) to solve a relativistic Burgers equation in the exterior domain of a Schwarzschild black hole. Our main contribution is a PINN architecture that is able to simulate shock wave formations in such curved spacetime, by training a shock- aware network block and introducing a Godunov-inspired residuals in the loss function. We validate our method with numerical experiments with different kinds of initial conditions. We show its ability to reprodu…

This https://arxiv.org/abs/2501.06957 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Dispersive estimates for Schrödinger's and wave equations on Riemannian manifolds
This paper proves $L^p$ decay estimates for Schrödinger's and wave equations with scalar potentials on three-dimensional Riemannian manifolds. The main result regards small perturbations of a metric with constant negative sectional curvature. We also prove estimates on $\mathbb S^3$, the three-dimensional sphere, and $\mathbb H^3$, the three-dimensional hyperbolic space. Most of the estimates hold for the perturbed Hamiltonian $H=H_0+V$, where $H_0$ is the shifted Laplacian $H_0=-Δ+κ_0$,…

Importance of the numerical schemes in the CFD of the human nose
Andrea Schillaci, Maurizio Quadrio
https://arxiv.org/abs/2506.23163 https://

Importance of the numerical schemes in the CFD of the human nose
Computational fluid dynamics of the air flow in the human nasal cavities, starting from patient-specific Computer Tomography (CT) scans, is an important tool for diagnostics and surgery planning. However, a complete and systematic assessment of the influence of the main modeling assumptions is still lacking. In designing such simulations, choosing the discretization scheme, which is the main subject of the present work, is an often overlooked decision of primary importance. We use a comparison …

Martingales and Path-Dependent PDEs via Evolutionary Semigroups
Robert Denk, Markus Kunze, Michael Kupper
https://arxiv.org/abs/2507.01845 https://

Martingales and Path-Dependent PDEs via Evolutionary Semigroups
In this article, we develop a semigroup-theoretic framework for the analytic characterisation of martingales with path-dependent terminal conditions. Our main result establishes that a measurable adapted process of the form \[ V(t) - \int_0^tΨ(s)\, ds \] is a martingale with respect to an expectation operator $\mathbb{E}$ if and only if a time-shifted version of $V$ is a mild solution of a final value problem involving a path-dependent differential operator that is intrinsically connected to $…

This https://arxiv.org/abs/2505.00489 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Weighted averages of $\operatorname{SL}_2(\mathbb{R})$ automorphic kernel, Part I: non-oscillatory functions
We prove a theorem that evaluates weighted averages of sums parametrised by congruence subgroups of $\operatorname{SL}_2(\mathbb{Z})$. In the proof, spectral methods are applied directly to the automorphic kernel instead of going over sums of Kloosterman sums. In number theoretical applications this better preserves the specific symmetries throughout the application of spectral methods. In a separate paper we apply the main theorem to quadratic polynomials and obtain new results about their gre…

Critical Metallicity of Cool Supergiant Formation. II. Physical Origin
Po-Sheng Ou, Ke-Jung Chen
https://arxiv.org/abs/2506.01753 https://

Critical Metallicity of Cool Supergiant Formation. II. Physical Origin
This study investigates the physical origin of the critical metallicity ($Z_{\rm c}\sim 0.001$) required for the formation of cool supergiants, as revealed by stellar evolution models. Using model grids that vary in mass, metallicity, opacity, and nuclear reaction rates, we identify a threshold terminal-age main-sequence (TAMS) radius ($R_{\rm T}$) that determines whether a star of a given mass can evolve into the red supergiant (RSG) phase. Through stellar models and homology relations, we sho…

Multicontinuum splitting schemes for multiscale wave problems
Mohsen Alshahrani, Buzheng Shan
https://arxiv.org/abs/2506.01670 https://

Multicontinuum splitting schemes for multiscale wave problems
In this work, we propose multicontinuum splitting schemes for the wave equation with a high-contrast coefficient, extending our previous research on multiscale flow problems. The proposed approach consists of two main parts: decomposing the solution space into distinct components, and designing tailored time discretization schemes to enhance computational efficiency. To achieve the decomposition, we employ a multicontinuum homogenization method to introduce physically meaningful macroscopic var…

Physical Space Proof of Bilinear Estimates and Applications to Nonlinear Dispersive Equations (II)
Xinfeng Hu, Li Tu, Yi Zhou
https://arxiv.org/abs/2507.01317

Physical Space Proof of Bilinear Estimates and Applications to Nonlinear Dispersive Equations (II)
We study the Zakharov system in two and three spatial dimensions, reproducing the optimal local well-posedness results from Bejenaru-Herr-Holmer-Tataru [2] and Bejenaru-Herr [1]. The main tools are similar to [16], based on a bilinear estimate, which is proved in a physical space approach by a new type of div-curl lemma. The new ingredient of our proof is a Strichartz estimate with mixed spatial integrability.

Metal-poor single Wolf-Rayet stars: the interplay of optically thick winds and rotation
Lumen Boco, Michela Mapelli, Andreas A. C. Sander, Sofia Mesini, Varsha Ramachandran, Stefano Torniamenti, Erika Korb, Boyuan Liu, Gautham N. Sabhahit, Jorick S. Vink
https://arxiv.org/abs/2507.00137 …

Metal-poor single Wolf-Rayet stars: the interplay of optically thick winds and rotation
The Small Magellanic Cloud (SMC) hosts 12 known Wolf-Rayet stars (WRs), seven of which apparently single. Their formation is a challenge for current stellar evolution models, because line-driven winds are generally assumed to be quenched at a metallicity Z<0.004. Here, we present a set of MESA models of single stars with zero-age main sequence masses 20-80 M_sun, considering different initial rotation speeds (Omega=0-0.7 Omega_c), metallicities (Z=0.002-0.0045), and wind mass-loss models (optic…

Scalable Analysis and Design Using Automatic Differentiation
Julian Andrej, Tzanio Kolev, Boyan Lazarov
https://arxiv.org/abs/2506.00746 https://

Scalable Analysis and Design Using Automatic Differentiation
This article aims to demonstrate and discuss the applications of automatic differentiation (AD) for finding derivatives in PDE-constrained optimization problems and Jacobians in non-linear finite element analysis. The main idea is to localize the application of AD at the integration point level by combining it with the so-called Finite Element Operator Decomposition. The proposed methods are computationally effective, scalable, automatic, and non-intrusive, making them ideal for existing serial…

Dynamics of 3D focusing, energy-critical wave equation with radial data
Ruipeng Shen
https://arxiv.org/abs/2507.00391 https://arxiv.o…

Dynamics of 3D focusing, energy-critical wave equation with radial data
In this article we discuss the long-time dynamics of the radial solutions to the energy-critical wave equation in 3-dimensional space. We prove a quantitative version of soliton resolution result for solutions defined for all time $t>0$. The main tool is the radiation theory of wave equations and the major observation of this work is a correspondence between the radiation and the soliton collision behaviour of solutions.

How Massive Star Clusters Form and Evolve: A Near-IR Survey of the W51 Complex
Aden Dawson, Adam Ginsburg, Carlos Roman-Zuniga
https://arxiv.org/abs/2507.23112 https://

How Massive Star Clusters Form and Evolve: A Near-IR Survey of the W51 Complex
We present near-infrared JHKs and narrow-band H2(1-0) photometric observations of the W51A region, obtained with GTC EMIR, aiming to characterize its young stellar population and provide mass estimates for individual cluster members and the proto-clusters. Our observations reveal over 3000 new sources, out of which 88 are located in the proto-clusters, W51 IRS2 and W51 Main. The average extinction (AV), measured from the J-H color, of sources is 19 AV in W51 IRS2 and 14 AV in W51 Main. We docum…

Error Etimates for Non Conforming Discretisation of Time-dependent Convection-Diffusion-Reaction Model
Hasan Alzubaidi, Yahya Alnashri
https://arxiv.org/abs/2507.00219

Error Etimates for Non Conforming Discretisation of Time-dependent Convection-Diffusion-Reaction Model
We use a generic framework, namely the gradient discretisation method (GDM), to propose a unified numerical analysis for general time-dependent convection-diffusion-reaction models. We establish novel results for convergence rates of numerical approximations of such models under reasonable assumptions on exact solutions, and prove the existence and uniqueness of the approximate solution for suitably small time steps. The main interest of our results lies in covering several approximation method…

Inverse scattering for the nonlinear magnetic Schrodinger equation
Lei Wei, Hua Huang
https://arxiv.org/abs/2506.01246 https://arxiv.…

Inverse scattering for the nonlinear magnetic Schrodinger equation
In this paper, we focus on the inverse scattering problem for the nonlinear Schrodinger equation with magnetic potentials. Specifically, we investigate whether the scattering operator associated with the nonlinear Schrodinger equation can uniquely determine the magnetic potential. Our main goal is to establish the uniqueness result for the magnetic potential based on the scattering data obtained from the scattering operator.

Analysis of A Mixed Finite Element Method for Poisson's Equation with Rough Boundary Data
Huadong Gao, Yuhui Huang, Wen Xie
https://arxiv.org/abs/2507.00697

Analysis of A Mixed Finite Element Method for Poisson's Equation with Rough Boundary Data
This paper is concerned with finite element methods for Poisson's equation with rough boundary data. Conventional methods require that the boundary data $g$ of the problem belongs to $H^{1/2} (\partial Ω)$. However, in many applications one has to consider the case when $g$ is in $L^2(\partial Ω)$ only. To this end, very weak solutions are considered to establish the well-posedness of the problem. Most previously proposed numerical methods use regularizations of the boundary data. The main pu…

This https://arxiv.org/abs/2502.12423 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Local well-posedness for a system of modified KdV equations in modulation spaces
In this work, we consider the initial value problem (IVP) for a system of modified Korteweg-de Vries (mKdV) equations \begin{equation*} \begin{cases} \partial_t v + \partial_x^3 v+ \partial_x (v w^2) = 0, \hspace{0.98 cm} v(x,0)=ψ(x),\\ \partial_t w + α\partial_x^3 w+\partial_x (v^2 w) = 0,\hspace{0.5 cm} w(x,0)=ϕ(x). \end{cases} \end{equation*} The main interest is in addressing the well-posedness issues of the IVP when the initial data are considered in the modulation space $M_s^{2,p}(…

Critical scattering for the nonlinear Schr\"odinger equation on waveguide manifolds
Yongming Luo
https://arxiv.org/abs/2506.00442 https://

Critical scattering for the nonlinear Schrödinger equation on waveguide manifolds
We study the small data scattering problem in critical spaces for the nonlinear Schrödinger equation (NLS) on waveguide manifolds. Our work is primarily inspired by the recent paper of Kwak and Kwon \cite{KwakKwon} that established the local well-posedness of the periodic NLS with possibly non-algebraic nonlinearity. While we adopt a framework similar to \cite{KwakKwon} for our problem, two main obstacles prevent its direct adaptation to the waveguide setting. First, the classical Strichartz e…