Tootfinder

Superluminal Quantum Reference Frames
Amrapali Sen, Matthias Salzger, {\L}ukasz Rudnicki
https://arxiv.org/abs/2506.11787 https://arx…

Superluminal Quantum Reference Frames
While particles cannot travel faster than the speed of light, nor can information, this assumption has over the years been frequently questioned. Most recently, it has been argued [New J. Phys. 22, 033038 (2020)] that in a world with superluminal observers local determinism is impossible, linking the two pillars of physics-quantum theory and relativity-suggesting that the latter serves as the foundation for the former. Motivated by this approach, in this work, we extend the framework of quantum…

Will Musicians Ever Rule the World?
https://muz4now.com/2020/will-musicians-ever-rule-the-world/

Will Musicians Ever Rule the World?
Stan Stewart - @muz4now

CPJ says police have assaulted "more than 20" journalists, including by less-lethal projectiles, since LA protests began on June 6, echoing the 2020 US protests (Washington Post)
https://www.washingtonpost.com/style/media/2025/06/09…

Journalists come under fire covering L.A. protests
Reporters say they were struck with less-lethal rounds fired by law enforcement in Los Angeles. Advocates worry it will inhibit vital journalism.

Another useful article:
"What to know about Trump’s deployment of National Guard troops to LA protests"
https://apnews.com/article/insurrection-act-trump-troops-newsom-military-national-guard-…

What to know about Trump's deployment of National Guard troops to LA protests
President Donald Trump says he’s deploying 2,000 California National Guard troops to Los Angeles to respond to immigration protests, over the objections of California Gov. Gavin Newsom. It’s not the first time Trump has activated the National Guard to quell protests. In 2020, he asked governors of several states to send troops to Washington, D.C. to respond to demonstrations that arose after George Floyd was killed by Minneapolis police officers. Here are some things to know about when and …

LA was a dress rehearsal for what Trump really has planned - Raw Story
https://www.rawstory.com/raw-investigates/trump-lo…

LA was a dress rehearsal for what Trump really has planned
Trump: Well, we’re going to have troops everywhere.Reporter: What’s the bar for sending in the Marines?Trump: The bar is what I think it is.The 2026 and 2028 elections may have just gotten a lot more distant. First, the backstory.It was around 2 a.m. on July 15, 2020, when Mark Pettibone, then 29, w...

Enjoying Non-linearity in Multinomial Logistic Bandits
Pierre Boudart (PSL, DI-ENS, Inria), Pierre Gaillard (PSL, DI-ENS, Inria), Alessandro Rudi (PSL, DI-ENS, Inria)
https://arxiv.org/abs/2507.05306

Enjoying Non-linearity in Multinomial Logistic Bandits
We consider the multinomial logistic bandit problem, a variant of generalized linear bandits where a learner interacts with an environment by selecting actions to maximize expected rewards based on probabilistic feedback from multiple possible outcomes. In the binary setting, recent work has focused on understanding the impact of the non-linearity of the logistic model (Faury et al., 2020; Abeille et al., 2021). They introduced a problem-dependent constant $κ_*$, that may be exponentially larg…

🇺🇦 #NowPlaying on #BBC6Music's #TheHueyShow
The Who:
🎵 Eminence Front
#TheWho
https://sportellomusic.bandcamp.com/track/the-who-eminence-front-sportello-2020-edit
https://open.spotify.com/track/6HhVHZTzhjvS5erfCm4roh

Evolution of Rayleigh-Taylor turbulence under vorticity and strain-rate control
Dongxiao Zhao, Gaojin Li
https://arxiv.org/abs/2506.07012 https://

Evolution of Rayleigh-Taylor turbulence under vorticity and strain-rate control
We investigate the role of small-scale structures in turbulent Rayleigh-Taylor (RT) flows through the application of preferential flow control targeting high vorticity or high strain-rate regions (Buzzicotti et al. 2020). Through numerical simulations, we analyze the effects of flow control on RT statistics, mixing, and anisotropy behavior. Our results reveal that eliminating intense small-scale motion leads to the formation of more organized and coherent flow structures, with reduced mixing an…

Truthful, Credible, and Optimal Auctions for Matroids via Blockchains and Commitments
Aadityan Ganesh, Qianfan Zhang
https://arxiv.org/abs/2507.04592 https…

Truthful, Credible, and Optimal Auctions for Matroids via Blockchains and Commitments
We consider a revenue-optimizing auctioneer in single-dimensional environments with matroid feasibility constraints. Akbarpour and Li (2020) argue that any revenue-optimal, truthful, and credible mechanism requires unbounded communication. Recent works (Ferreira and Weinberg, 2020; Essaidi et al., 2022; Chitra et al., 2024) circumvent their impossibility for the single-item setting through the use of cryptographic commitments and blockchains. We extend their results to matroid feasibility const…

Determining the orientation of radio antennas at the South Pole using Galactic noise measurements
Paras Koundal (for the IceCube Collaboration), Valeria Torres-Gomez (for the IceCube Collaboration)
https://arxiv.org/abs/2507.07224

Determining the orientation of radio antennas at the South Pole using Galactic noise measurements
The IceCube Neutrino Observatory is a multi-messenger observatory at the South Pole. As preparation for an enhancement of its surface array, IceTop, a prototype station consisting of elevated scintillation panels and radio antennas has been installed and is operating since 2020. The radio antennas detect emissions from cosmic-ray-induced air showers, and their precise orientation is essential for an accurate reconstruction of the air-shower properties. This work presents a novel method to deter…

Greedy Dynamic Matching
Nick Arnosti, Felipe Simon
https://arxiv.org/abs/2507.04551 https://arxiv.org/pdf/2507.04551

Greedy Dynamic Matching
We study a foundational model of dynamic matching market with abandonment. This model has been studied by Collina et al (2020) and Aouad and Saritac (2022), and many other papers have considered special cases. We compare the performance of greedy policies -- which identify a set of "acceptable" matches up front, and perform these matches as soon as possible -- to that of an omniscient benchmark which knows the full arrival and departure sequence. We use a novel family of linear programs ($LP^…

Woof. 5 years since I kicked off my “[overlay] Will Get You Sued” series, which helped lead to a million dollar fine earlier this year by the FTC against accessiBe for its constant lies.
https://bsky.app/profile/overlaytimeline.com/post/3lss6jbuwec27

Kommenden Dienstag 8.7.25, 19:30 Uhr, ist es so weit:
Michael Blume in der Manufaktur
Sturmflut der Lügen - Wie wir unsere Gesellschaft gegen Desinformation Wappnen
@…
#schorndorf

On the existence of negative moments for some non-colliding particle systems and its application
Minh Thang Do, Hoang Long Ngo
https://arxiv.org/abs/2507.04022

On the existence of negative moments for some non-colliding particle systems and its application
We consider a class of $d$-dimensional stochastic differential equations that model a non-colliding random particle system. We provide a sufficient condition, which does not depend on the dimension $d$, for the existence of negative moments of the gap between two particles, and then apply this result to study the strong rate of convergence of the semi-implicit Euler-Maruyama approximation scheme. Our finding improves a recent result of Ngo and Taguchi (Annals of Applied Probability, 2020).

Good Morning #Canada
OTD in 1977, Tim Severin landed on Peckford Island, Newfoundland. Severin had set sail from Ireland on May 17th with a five-man crew in a boat built using only techniques and materials available in sixth-century Ireland. The arduous 7,300km journey was meant to prove that St. Brendon had discovered North America almost 1,000 years before Columbus. I'm sure we were polite and didn't smirk when we welcomed him to Canada.
#CanadaIsAwesome #Myth
https://lookingnorth.blog/2020/07/the-brendan-voyage/

Impact of the WHO's 90-70-90 Strategy on HPV-Related Cervical Cancer Control: A Mathematical Model Evaluation in China
Hua Liu, Chunya Liu, Yumei Wei, Qibin Zhang, Jingyan Ma
https://arxiv.org/abs/2506.06405

Impact of the WHO's 90-70-90 Strategy on HPV-Related Cervical Cancer Control: A Mathematical Model Evaluation in China
In August 2020, the World Health Assembly approved the Global Strategy to eliminate cervical cancer, marking the first time that numerous countries committed to eliminating a form of cancer. China introduced the HPV vaccine in 2016 and has made significant advancements in both prevention and treatment strategies. However, due to the relatively late introduction of the vaccine, the burden of cervical cancer in China continues to rise. In light of this, we develop a compartmental model to assess …

Hallo Presse: wieso fragt ihr die Regierung nicht danach, wie sie diese¹ Klimaziele erreichen will? Wo sind die Schlagzeilen? Wo ist der Skandal?
Und: redet mit euren Wissenschafts­redaktionen, verweist auf deren Artikel zu den Folgen. Wenn ihr Politik­journalismus wirksam betreiben wollt, müßt ihr darin fit sein, was die Wissenschaft sagt. Laßt euch nicht von Politikys verarschen.
__
¹

Improved geometric and recollision estimates for the invariance principle of the random Lorentz gas
Raphael Winter, Karsten Matthies
https://arxiv.org/abs/2506.18539

Improved geometric and recollision estimates for the invariance principle of the random Lorentz gas
By improving geometric recollision estimates for a random Lorentz gas, we extend the timescale $T(r)$ of the invariance principle for a Lorentz gas with particle size $r$ obtained by Lutsko and Toth (2020) from $\lim_{r \rightarrow 0} T(r) r^{2} |\log(r)|^2 =0$ to $\lim_{r \rightarrow 0} T(r) r^{2} |\log(r)| =0$. We show that this is the maximal reachable timescale with the coupling of stochastic processes introduced in the original result. In our improved geometric estimate…

A note on multi-transitivity in non-autonomous discrete systems
Hongbo Zeng
https://arxiv.org/abs/2505.24657 https://arxiv.org/pdf/25…

A note on multi-transitivity in non-autonomous discrete systems
This paper is concerned with some stronger forms of transitivity in non-autonomous discrete systems$(f_{ 1,\infty})$ generated by a uniformly convergent sequence of continuous self maps. Firstly, we present two counterexamples to show that Theorem 3.1 obtained by Salman and Das in [Multi-transitivity in nonautonomous discrete systems Topol. Appl. 278(2020)107237] is not true. Then, we introduce and study mildly mixing in non-autonomous discrete systems, which is stronger than mixing. We obtain …

pySpainMobility: a Python Package to Access and Manage Spanish Open Mobility Data
Ciro Beneduce, Tania Gull\'on Mu\~noz-Repiso, Bruno Lepri, Massimiliano Luca
https://arxiv.org/abs/2506.13385

pySpainMobility: a Python Package to Access and Manage Spanish Open Mobility Data
Mobility patterns play a critical role in a wide range of societal challenges, from epidemic modeling and emergency response to transportation planning and regional development. Yet, access to high-quality, timely, and openly available mobility data remains limited. In response, the Spanish Ministry of Transportation and Sustainable Mobility has released daily mobility datasets based on anonymized mobile phone data, covering districts, municipalities, and greater urban areas from February 2020 …

This https://arxiv.org/abs/2504.13658 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

SRGAJ230631.0+155633: an extremely X-ray luminous, heavily obscured, radio-loud quasar at z=0.44 discovered by SRG/ART-XC
We report on a detailed study of a luminous, heavily obscured ($N_{\rm H} \sim 2 \times 10^{23}$ cm$^{-2}$), radio-loud quasar SRGAJ230631.0+155633, discovered in the 4--12 keV energy band by the Mikhail Pavlinsky ART-XC telescope aboard the SRG observatory during the first two years of its all-sky X-ray survey in 2020--2021. The object is located at $z=0.4389$ and is a type 2 AGN according to optical spectroscopy (SDSS, confirmed by DESI). We combine radio-to-X-ray data, including near-simulta…

Sturmflut der Lügen – Wie wir unsere Gesellschaft gegen Desinformation wappnen
Vortrag mit
Michael Blume @…
8.7.2025, 19:30 Uhr
Manufaktur Schorndorf
#Schorndorf

gcor: A Python Implementation of Categorical Gini Correlation and Its Inference
Sameera Hewage
https://arxiv.org/abs/2506.19230 https://

gcor: A Python Implementation of Categorical Gini Correlation and Its Inference
Categorical Gini Correlation (CGC), introduced by Dang et al. (2020), is a novel dependence measure designed to quantify the association between a numerical variable and a categorical variable. It has appealing properties compared to existing dependence measures, such as zero correlation mutually implying independence between the variables. It has also shown superior performance over existing methods when applied to feature screening for classification. This article presents a Python implementa…

This https://arxiv.org/abs/2404.13164 has been replaced.
link: https://scholar.google.com/scholar?q=a

Least Squares Estimation For Hierarchical Data
The U.S. Census Bureau's 2020 Disclosure Avoidance System (DAS) bases its output on noisy measurements, which are population tabulations added to realizations of mean-zero random variables. These noisy measurements are observed for a set of hierarchical geographic units, e.g., the U.S. as a whole, states, counties, census tracts, and census blocks. The Census Bureau released the noisy measurements generated in the DAS executions for the two primary 2020 Census data products, in part to allow da…

The Proof Analysis Problem
Noel Arteche, Albert Atserias, Susanna F. de Rezende, Erfan Khaniki
https://arxiv.org/abs/2506.16956 https://

The Proof Analysis Problem
Atserias and Müller (JACM, 2020) proved that for every unsatisfiable CNF formula $φ$, the formula $\operatorname{Ref}(φ)$, stating "$φ$ has small Resolution refutations", does not have subexponential-size Resolution refutations. Conversely, when $φ$ is satisfiable, Pudlák (TCS, 2003) showed how to construct a polynomial-size Resolution refutation of $\operatorname{Ref}(φ)$ given a satisfying assignment of $φ$. A question that remained open is: do all short Resolution refutations of $\op…

SETI@home: Data Acquisition and Front-End Processing
Eric J. Korpela (Space Sciences Laboratory, University of California, Berkeley), David P. Anderson (Space Sciences Laboratory, University of California, Berkeley), Jeff Cobb (Space Sciences Laboratory, University of California, Berkeley), Matt Lebofsky (Space Sciences Laboratory, University of California, Berkeley), Wei Liu (Space Sciences Laboratory, University of California, Berkeley), Dan Werthimer (Space Sciences Laboratory, Univ…

SETI@home: Data Acquisition and Front-End Processing
SETI@home is a radio Search for Extraterrestrial Intelligence (SETI) project, looking for technosignatures in data recorded at multiple observatories from 1998 to 2020. Most radio SETI projects analyze data using dedicated processing hardware. SETI@home uses a different approach: time-domain data is distributed over the Internet to $\gt 10^{5}$ volunteered home computers, which analyze it. The large amount of computing power this affords ($\sim 10^{15}$ floating-point operations per second (FPO…

Sprinkled Decoupling for Hammersley's Process
Leandro P. R. Pimentel, Roberto Viveros
https://arxiv.org/abs/2506.19008 https://ar…

Sprinkled Decoupling for Hammersley's Process
In this article we prove a sprinkled decoupling inequality for the stationary Hammersley's interacting particle process. Inspired by the work of Baldasso and Texeira (2018), and Hilário, Kious and Texeira (2020), we apply this inequality to study two distinct problems on the top of this particle process. First, we analyze a detection problem, demonstrating that a fugitive can evade particles, provided that their jump range is sufficiently large. Second, we show that a random walk in a dynamic …

The Northern Cross Fast Radio Burst project: V. Search for transient radio emission from Galactic magnetars
A. Geminardi, P. Esposito, G. Bernardi, M. Pilia, D. Pelliciari, G. Naldi, D. Dallacasa, R. Turolla, L. Stella, F. Perini, F. Verrecchia, C. Casentini, M. Trudu, R. Lulli, A. Maccaferri, A. Magro, A. Mattana, G. Bianchi, G. Pupillo, C. Bortolotti, M. Tavani, M. Roma, M. Schiaffino, G. Setti

The Northern Cross Fast Radio Burst project: V. Search for transient radio emission from Galactic magnetars
Context. The radio emission from magnetars is poorly understood and poorly characterized observationally, in particular for what concerns single pulses and sporadic events. The interest in it was boosted by the detection in 2020 of an extremely bright ms radio signal from the Galactic magnetar designated Soft Gamma Repeater (SGR) SGR J1935+2154, which occurred almost simultaneously with a typical magnetar short burst of X-rays. As of now, this event remains the Galactic radio pulse that is the …

A Radio-quiet AGN as a candidate counterpart to neutrino event IceCube-200615A
F. McBride, N. Schettino, J. D. O'Brien, W. Harwood, L. Perot, G. Temple, H. Ayalo Solares, A. Corsi, A. Coleiro, D. Cowen, D. B. Fox, Y. Li, K. Murase, A. Pellegrino, T. D. Russell, S. Wissel
https://arxiv.org/abs/2506.20064

A Radio-quiet AGN as a candidate counterpart to neutrino event IceCube-200615A
Follow-up observations of neutrino events have been a promising method for identifying sources of very-high-energy cosmic rays. Neutrinos are unambiguous tracers of hadronic interactions and cosmic rays. On June 15, 2020, IceCube detected a neutrino event with an 82.8% probability of being astrophysical in origin. To identify the astrophysical source of the neutrino, we used X-ray tiling observations to identify potential counterpart sources. We performed additional multiwavelength follow-up wi…