Tootfinder

PitchBook: European defense tech startups have raised €2.4B since 2022, including €1.4B in the first 7 months of 2025, up from €30M in 2020 and €150M in 2021 (Financial Times)
https://www.ft.com/content/a194942b-93ff-49a0-8aa9-02460055748e

Europe’s defence tech start-ups attract investment surge
Russia’s war in Ukraine and fears over US security relationship drive wave of VC funding

Jährlicher Zubau und Rückbau von #Balkonsolarleistung in Deutschland mit Stand vom 05.09.2025.
Unplausible Inbetriebnahmedaten von 1900 bis 2017 wurden durch das Registrierungsdatum der #Steckersolaranlage ersetzt.
👉 Zusatzlesestoff: Förderantrag

LiDO: Discovery of a 10:1 Resonator with a Novel Libration State
Rosemary E. Pike, Ruth Murray-Clay, Kathryn Volk, Mike Alexandersen, Mark Comte, Samantha M. Lawler, Ying-Tung Chen, Arcelia Hermosillo Ruiz, Cameron Semenchuck, Cameron Collyer, J. J. Kavelaars, Lowell Peltier
https://arxiv.org/abs/2508.05627…

LiDO: Discovery of a 10:1 Resonator with a Novel Libration State
The Large inclination Distant Objects LiDO survey has discovered the first securely classified object in the 10:1 mean motion resonance of Neptune. This object, 2020 VN40, is short-term stable in the 10:1 resonance, but not stable on Gyr timescales. 2020 VN40 is likely part of the scattering sticking population, and temporarily resides in the 10:1 resonance at ~139.5 au. This discovery confirms that this distant resonance is populated, as a single detection is likely to be indicative of a large…

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…

Trump’s DOJ seeks voting equipment in Missouri ahead of 2026 election

A top official in Trump’s Justice Department recently sought access to voting equipment used by two Republican clerks in Missouri during the 2020 election
-- an unusual request from federal officials amid continued efforts by the president to malign the integrity of the nation’s voting systems.

Trump’s DOJ seeks voting equipment in Missouri ahead of 2026 election
The unusual request for equipment used by two Republican clerks in the 2020 election comes after Trump said he would lead a movement to get rid of voting machines.

Lullabies and Love Songs
#Lullaby #NowPlaying
https://muz4now.com/2020/lullabies-and

Lullabies and Love Songs #NowPlaying
Stan Stewart - @muz4now

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^…

Three old posts updated this afternoon, but linking to the same ref:
• https://adrianroselli.com/2020/11/under-engineered-responsive-tables.html#Update05
•

Under-Engineered Responsive Tables
I have written a bunch about responsive tables. Maybe too much. I keep trying to give developers the information they need to make informed decisions — ARIA attributes, screen reader & browser pairing results, bugs, and so on. I have spread things out over years of posts. I have filed…

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).

Mark Davis Confirms That Tom Brady Was 'Supposed to Be' Raiders QB in 2020 https://www.si.com/nfl/mark-davis-confirms-tom-brady-was-supposed-to-be-raiders-qb-in-2020

Hopf-Galois structures on separable field extensions of degree related to Cunningham chains
Andrew Darlington
https://arxiv.org/abs/2508.03384 https://arxi…

Hopf-Galois structures on separable field extensions of degree related to Cunningham chains
The past few years have seen Hopf--Galois structures on extensions of squarefree degree studied in various contexts. The Galois case was fully explored by Alabdali and Byott in 2020, followed by a first attempt at generalising these results to include non-normal extensions by Byott and Martin-Lyons; their work looks at separable extensions of degree $pq$ with $p,q$ distinct odd primes, and $p=2q+1$. This paper extends the latter work further by considering separable extensions of squarefree deg…

Comment on "A Note on Over-Smoothing for Graph Neural Networks"
Razi Hasson, Reuven Guetta
https://arxiv.org/abs/2509.04178 https://arxiv.org/pdf…

Comment on "A Note on Over-Smoothing for Graph Neural Networks"
We comment on Cai and Wang (2020, arXiv:2006.13318), who analyze over-smoothing in GNNs via Dirichlet energy. We show that under mild spectral conditions (including with Leaky-ReLU), the Dirichlet energy of node embeddings decreases exponentially with depth; we further extend the result to spectral polynomial filters and provide a short proof for the Leaky-ReLU case. Experiments on edge deletion and weight amplification illustrate when Dirichlet energy increases, hinting at practical ways to re…

The last time an American President ordered the militia of one state to invade another over its governor’s objections, his name was Abe. https://fed.brid.gy/r/https://bsky.app/profile/did:plc:nwnlnixtjh3qhkwpz2uy5uwv/post/3lxv6uvxpxc2e

Steve Vladeck (@stevevladeck.bsky.social)
When President Trump used 32 U.S.C. § 502(f)(2) in 2020, that was to have out-of-state National Guard troops sent to D.C.—which has no sovereignty of its own. Sending the un-federalized TX National Guard into IL without the latter’s consent raises *serious* Article IV problems that 2020 … didn’t.

Statscast - Baselines and Bats (2020-09) - Stats from 16WW and the wider world for July/August/September. #podcast #stats #bats -

Statscast - Baselines and Bats (2020-09)
Stats from 16WW and the wider world for July/August/September. #podcast #stats #bats

The Space Coronagraph Optical Bench (SCoOB): 7. design, fabrication, and first light for a self-coherent camera
Kevin Derby, Kian Milani, Grace C. Hathaway, Joshua Liberman, Kyle Van Gorkom, Ramya Anche, Adam Schilperoort, Corey Fucetola, Brandon Chalifoux, Kuravi Hewawasam, Christopher Mendillo, Sebastiaan Y. Haffert, Ewan S. Douglas
https://

The Space Coronagraph Optical Bench (SCoOB): 7. design, fabrication, and first light for a self-coherent camera
The 2020 Decadal Survey on Astronomy and Astrophysics tasked future space observatories with the goal of detecting and characterizing a large sample of Earth-like exoplanets. To achieve this, these observatories will require coronagraphs and wavefront control algorithms in order to achieve $10^{-10}$ or better starlight suppression. The Space Coronagraph Optical Bench (SCoOB) is a vacuum compatible testbed at the University of Arizona which aims to advance and mature starlight suppression techn…

Learn2Reg 2024: New Benchmark Datasets Driving Progress on New Challenges
Lasse Hansen, Wiebke Heyer, Christoph Gro{\ss}br\"ohmer, Frederic Madesta, Thilo Sentker, Wang Jiazheng, Yuxi Zhang, Hang Zhang, Min Liu, Junyi Wang, Xi Zhu, Yuhua Li, Liwen Wang, Daniil Morozov, Nazim Haouchine, Joel Honkamaa, Pekka Marttinen, Yichao Zhou, Zuopeng Tan, Zhuoyuan Wang, Yi Wang, Hongchao Zhou, Shunbo Hu, Yi Zhang, Qian Tao, Lukas F\"orner, Thomas Wendler, Bailiang Jian, Christian Wachinge…

Learn2Reg 2024: New Benchmark Datasets Driving Progress on New Challenges
Medical image registration is critical for clinical applications, and fair benchmarking of different methods is essential for monitoring ongoing progress. To date, the Learn2Reg 2020-2023 challenges have released several complementary datasets and established metrics for evaluations. However, these editions did not capture all aspects of the registration problem, particularly in terms of modality diversity and task complexity. To address these limitations, the 2024 edition introduces three new …

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

🇺🇦 #NowPlaying on #KEXP's #VarietyMix
Baby D:
🎵 Let Me Be Your Fantasy
#BabyD
https://bobsan.bandcamp.com/track/baby-d-let-me-be-your-fantasy-bobsan-2020-remix
https://open.spotify.com/track/1rQMmMklXi7k1HreHdD9Tj

Absence of eigenvalues of electromagnetic Dirac operators
Naiara Arrizabalaga, Lucrezia Cossetti, Matias Morales
https://arxiv.org/abs/2509.03627 https://a…

Absence of eigenvalues of electromagnetic Dirac operators
In this work, we develop the method of multipliers for electromagnetic Dirac operators and establish sufficient conditions on the magnetic and electric fields that guarantee the absence of point spectrum. Our results can be viewed as a generalization of those obtained by Cossetti, Fanelli and Krejčiřík (2020), which treated the purely magnetic case. We also emphasize that, in the massless case, our approach covers Coulomb-type potentials of the form $V(x) = \frac{1}{|x|} \big(ν\ma…

Finally some information about this strange guy who ride like a train in front of the whole pack. Source: dotwatcher.cc
Nicolas Chatelet #tcrno11cap46: The Quiet Master of Suffering
Nicolas Chatelet isn’t new to long, brutal efforts. In 2020, the Parisian maths teacher rode 11 reps of Plateau de Beille, climbing 21,165 metres in 24 hours – the highest known vertical gain. He fue…

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/

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

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

Van in voedsel tot via de lucht: hoe (een in de EU sinds 2020 verboden) #pesticide langdurige hersenschade bij kinderen veroorzaakt na blootstelling tijdens zwangerschap https://share.google/jINLtgiyYqx2dPD1x

Energy Efficiency in Robotics Software: A Systematic Literature Review (2020-2024)
Aryan Gupta
https://arxiv.org/abs/2508.12170 https://arxiv.org/pdf/2508.…

Energy Efficiency in Robotics Software: A Systematic Literature Review (2020-2024)
This study presents a systematic literature review of software-level approaches to energy efficiency in robotics published from 2020 through 2024, updating and extending pre-2020 evidence. An automated-but-audited pipeline combined Google Scholar seeding, backward/forward snowballing, and large-language-model (LLM) assistance for screening and data extraction, with ~10% human audits at each automated step and consensus-with-tie-breaks for full-text decisions. The final corpus comprises 79 peer-…

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.

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…

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 …

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

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

Quantum optical model of an artificial neuron
Vivek Mehta, Utpal Roy
https://arxiv.org/abs/2507.17349 https://arxiv.org/pdf/2507.17349

Quantum optical model of an artificial neuron
Magnini \emph{et al.} [\emph{Mach. Learn.: Sci. Technol. 1 (2020) 045008}] recently introduced a qubit-based model of an artificial neuron, along with its applications. The design of its quantum circuit is pivotal for effective implementation. In this context, we present two quantum circuit synthesis algorithms tailored for the realisation of the quantum neuron. Comprehensive circuit simulations are conducted, and the resulting performance is assessed using the circuit cost metric. Additionally…

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…

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...

Strong list-chromatic index of subcubic graphs is at most 10
Yunfang Tang, Zhiwei Bi
https://arxiv.org/abs/2507.11927 https://arxiv.o…

Strong list-chromatic index of subcubic graphs is at most 10
A strong edge coloring of a graph $G$ is an assignment of colors to the edges of $G$ such that two distinct edges are colored differently if they are incident to a common edge or share an endpoint. The strong chromatic index of a graph $G$, denoted by $χ_{s}'(G)$, is the minimum number of colors needed for a strong edge coloring of $G$. The edge weight of a graph $G$ is defined to be $\max\limits_{uv\in E(G)}\{(d_G(u)+d_G(v))\}$. It was proved in Chen et al in 2020 that every graph with edge w…

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…

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 …

The shape of economics before and after the financial crisis
Alberto Baccini, Lucio Barabesi, Carlo Debernardi
https://arxiv.org/abs/2508.09079 https://arx…

The shape of economics before and after the financial crisis
This paper investigates the impact of the global financial crisis on the shape of economics as a discipline by analyzing EconLit-indexed journals from 2006 to 2020 using a multilayer network approach. We consider two types of social relationships among journals, based on shared editors (interlocking editorship) and shared authors (interlocking authorship), as well as two forms of intellectual proximity, derived from bibliographic coupling and textual similarity. These four dimensions are integr…

Ionic emissions and activity evolution in comet C/2020 F3 (NEOWISE): Insights from long-slit spectroscopy and photometry
K. Aravind, E. Jehin, S. Hmmidouch, M. Vander Donckt, S. Ganesh, P. Rousselot, P. Hardy, D. Sahu, J. Manfroid, Z. Benkhaldoun
https://arxiv.org/abs/2507.21707

Ionic emissions and activity evolution in comet C/2020 F3 (NEOWISE): Insights from long-slit spectroscopy and photometry
Comet C/2020 F3 (NEOWISE) was the brightest comet in the northern hemisphere since C/1995 O1 (Hale-Bopp), providing a unique opportunity to study its composition and spatial distribution of emissions. We conducted narrow-band photometry and long-slit low-resolution spectroscopy to monitor the comet's activity and compositional evolution over several weeks post-perihelion. Narrow-band images (OH, NH, CN, C$_2$, C$_3$, BC, GC, RC) and broad-band images (B, V, Rc, Ic) were acquired with TRAPPIST-N…

Strong Lens Discoveries in DESI Legacy Imaging Surveys DR10 with Two Deep Learning Architectures
Jose Carlos Inchausti, Christopher J. Storfer, Xiaosheng Huang, Yuan-Ming Hsu, Brandt Kaufmann, Chaitanya Pasupala, S. Banka, A. Dey, D. Lang, A. Meisner, J. Moustakas, A. D. Myers, E. F. Schlafly, D. J. Schlegel
https://arxiv.org/abs/2508.2008…

Strong Lens Discoveries in DESI Legacy Imaging Surveys DR10 with Two Deep Learning Architectures
We have conducted a search for strong gravitational lensing systems in the Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Surveys Data Release 10 (DR10). This paper is the fourth in a series of searches (following Huang et al. 2020; Huang et al. 2021; Storfer et al. 2024, Paper I, II, & III respectively). This is the first catalog of lens candidates covering nearly the entirety of the extragalactic sky south of declination $δ\approx +32$ deg, all of it observed by the DECam, coveri…

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…

Building crypto portfolios with agentic AI
Antonino Castelli, Paolo Giudici, Alessandro Piergallini
https://arxiv.org/abs/2507.20468 https://arxiv.org/pdf/…

Building crypto portfolios with agentic AI
The rapid growth of crypto markets has opened new opportunities for investors, but at the same time exposed them to high volatility. To address the challenge of managing dynamic portfolios in such an environment, this paper presents a practical application of a multi-agent system designed to autonomously construct and evaluate crypto-asset allocations. Using data on daily frequencies of the ten most capitalized cryptocurrencies from 2020 to 2025, we compare two automated investment strategies. …

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…

Jährlicher Zubau und Rückbau der #Windenergieleistung in Deutschland. Stand: 09.08.2025.
Summen der Inbetriebnahmen und Stilllegungen pro Jahr.
Der Datenbestand enthält ggf. unplausible Datensätze.
Anmerkung: Erste Versuche einer #Datenanalyse. 😁 Hinweise gerne. Wü…

Newly unredacted documents in the Smartmatic-Fox News defamation case show former host Jeanine Pirro, now a US attorney, bragging about aiding Trump and the GOP (Jeremy Barr/Washington Post)

Jeanine Pirro bragged about helping Trump and GOP while a Fox News host
The former Fox host complained of “CENSORSHIP” by Fox over her coverage of the 2020 election, according to newly unredacted documents in the Smartmatic defamation case.

The ${\rm SL}(2,\mathbb{C})$-character variety of $8_{18}$
Haimiao Chen
https://arxiv.org/abs/2508.12203 https://arxiv.org/pdf/2508.12203

The ${\rm SL}(2,\mathbb{C})$-character variety of $8_{18}$
The knot $8_{18}$ is the first non-arborescent hyperbolic knot. In 2020, Paoluzzi and Porti found its ${\rm SL}(2,\mathbb{C})$-character variety with the aid of a computer, but many details were omitted. In this paper, we determine the character variety by a software-free procedure, which is easy to follow and enlightening. Along the way, we develop an efficient method for working with simultaneous conjugacy classes of four elements of ${\rm SL}(2,\mathbb{C})$.

I haven't visited the U.S. since January 2020 (business travel prior to retirement), but my social media commentary, like the example above, means I won't be traveling there anytime soon. I'm likely to be "disappeared" once they get access to my phone.
Thankfully, I'm not remotely interested in going there.
#ElbowsUp

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…

What began as a silent infiltration into one of the world’s largest cryptocurrency mining pools has now been confirmed as
the biggest crypto theft in history.
The LuBian mining pool, once a dominant force in the Bitcoin network, quietly lost over 127,000 Bitcoins in 2020.
The breach was only uncovered in 2025 by Arkham Intelligence, revealing a staggering $14.5 billion worth of stolen assets that had remained untouched and undetected for half a decade

The biggest heist of all time involved over $14 billion of crypto being stolen - and it went undetected for five years
Five years of silence before exposure

Weymouth Ambient (2020-08) - Ambient soundscape from a week in Weymouth late in August: boats, beach, amusements, eating... #Weymouth #soundscape #fieldRecording -

Weymouth Ambient (2020-08)
Ambient soundscape from a week in Weymouth late in August: boats, beach, amusements, eating... #Weymouth #soundscape #fieldRecording

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 …

Related to my last boost, still annoyed this DID NOT make it into WCAG 2.2:
3.2.7 Hidden Controls (Level AA): Controls needed to progress or complete a process are visible at the time they are needed without requiring pointer hover or keyboard focus, or a mechanism is available to make them persistently visible.
https://www.…

Jährlicher Zubau und Rückbau von #Balkonsolarleistung in Deutschland mit Stand vom 08.08.2025.
Unplausible Inbetriebnahmedaten von 1900 bis 2017 wurden durch das Registrierungsdatum der #Steckersolaranlage ersetzt.
Mehr zu

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…

Rural #Colorado town with less than 10,000 population has hyped up #cowboy #cops whose excessive force incidents are on dramatic rise, far outpacing #Denver

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…

How Trump's delusion about the 2020 election morphed into a movement
Why so many Republicans are still playing along
And why the media has stopped pushing back
https://www.thebulwark.com/p/why-has-the-media-stopped-fighting

Why Has the Media Stopped Fighting Trump’s Lies?
Will Saletan takes on Donald Trump’s latest assault on reality, this time targeting the nation’s job numbers.

Beyond Patents: R&D, Capital, and the Productivity Puzzle in Early-Stage High-Tech Firms
Victor (Xucheng), CHEN
https://arxiv.org/abs/2507.18227 https://

Beyond Patents: R&D, Capital, and the Productivity Puzzle in Early-Stage High-Tech Firms
This study investigates the relationship between innovation activities and firm-level productivity among early-stage high-tech startups in China. Using a proprietary dataset encompassing patent records, R&D expenditures, capital valuation, and firm performance from 2020 to 2024, we examine whether and how innovation, measured by patents and R&D input, translates into economic output. Contrary to established literature, we find that patent output does not significantly contribute to either incom…

🇺🇦 #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

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 …

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…

Flashback zu meiner turnusmäßigen Grippe-Impfung 2020, bei der sich vor Ort herausstellte, dass die zuständige Ärztin im Dienst gerade die damalige SPÖ-Vorsitzende Pamela Rendi-Wagner war.
#Vaccinate #Grippeimpfung #Österreich

Homeownership as Life Cycle Goldmine: Evidence from Macrohistory
Yang Bai, Shize Li, Jialu Shen
https://arxiv.org/abs/2507.17624 https://arxiv.org/pdf/2507…

Homeownership as Life Cycle Goldmine: Evidence from Macrohistory
Should a household buy a home? Using data from 16 developed countries spanning 1870 to 2020, this study provides a resounding affirmative answer. Contrary to popular expert advice, homeownership enhances life cycle wealth by up to 9% and welfare by up to 23%, compared to all-equity investment strategy. Homeownership reduces wealth portfolio risk and improves wealth equality, though it comes at the cost of lower working-life wealth and curtailed financial asset holdings. Gains are heterogeneous:…

Beyond the Clouds: Advanced Data Analysis of a Dutch Sky Quality Meter Network
Farhan R. Shah (Kapteyn Astronomical Institute, University of Groningen, Groningen, The Netherlands), Reynier F. Peletier (Kapteyn Astronomical Institute, University of Groningen, Groningen, The Netherlands), Jake Noel-Storr (Access Astronomy), Dirk van der Geest (Kapteyn Astronomical Institute, University of Groningen, Groningen, The Netherlands), Theo Jurriens (Science LinX, Faculty of Science and Engineer…

Beyond the Clouds: Advanced Data Analysis of a Dutch Sky Quality Meter Network
Light pollution is an increasing environmental concern, impacting both ecological systems and human health. This report presents an analysis of light pollution data from the \textit{Was het donker} SQM network from 2020 until 2023, with a focus on indirect light pollution, commonly known as skyglow. By integrating measurements from Sky Quality Meter (SQM) stations in the network and cloud cover data from EUMETSAT, we conducted a comprehensive analysis of night sky brightness across a region enc…