Tootfinder

Check Point acquires Israeli cyber startup firm Veriti for $100 million
https://www.ynetnews.com/business/article/byjdi4emee

Check Point acquires Israeli cyber startup firm Veriti for $100 million
The Israeli company, founded in 2021 by Check Point alumni, has developed a platform for identifying and fixing security gaps in real time 30 Veriti employees will join Check Point as part of the deal, which is a continuation of the company's Israeli acquisition strategy

«I guess the main point is understand the data types you’re using. You wouldn’t use an 8-bit integer to handle values in the thousands, but it’s fine if the values stay under one hundred. The same rules apply to floating point. You just have to know how they work.»
https://fosstodon.org/@drdrang/1147627…

‘We are perilously close to the point of no return’: climate scientist on Amazon rainforest’s future https://www.theguardian.com/environment/ng-interactive/2025/jun/26/tippping-points-amazon-rainforest-climate-scie…

Fixed-Point Traps and Identity Emergence in Educational Feedback Systems
Faruk Alpay
https://arxiv.org/abs/2505.21038 https://arxiv.o…

Fixed-Point Traps and Identity Emergence in Educational Feedback Systems
This paper presents a formal categorical proof that exam-driven educational systems obstruct identity emergence and block creative convergence. Using the framework of Alpay Algebra II and III, we define Exam-Grade Collapse Systems (EGCS) as functorial constructs where learning dynamics $φ$ are recursively collapsed by evaluative morphisms $E$. We prove that under such collapse regimes, no nontrivial fixed-point algebra $μ_φ$ can exist, hence learner identity cannot stabilize. This creates a …

Also @…'s Geschenke Game ist on point.

internet_top_pop: Internet topology (PoP level) (1969-2012)
Assorted snapshots of internet graph at the Point of Presence (PoP) level (which lies between the IP and AS levels), collected from around the world and at various times. The earliest snapshots are for ARPANET (1969-1972), with a few more from pre-2000. Most are from 2006 onward. Metadata include link type or speed, longitudes, and latitudes of nodes, URL, and date of record.
This network has 19 nodes and 24 edges.

StruMamba3D: Exploring Structural Mamba for Self-supervised Point Cloud Representation Learning
Chuxin Wang, Yixin Zha, Wenfei Yang, Tianzhu Zhang
https://arxiv.org/abs/2506.21541

StruMamba3D: Exploring Structural Mamba for Self-supervised Point Cloud Representation Learning
Recently, Mamba-based methods have demonstrated impressive performance in point cloud representation learning by leveraging State Space Model (SSM) with the efficient context modeling ability and linear complexity. However, these methods still face two key issues that limit the potential of SSM: Destroying the adjacency of 3D points during SSM processing and failing to retain long-sequence memory as the input length increases in downstream tasks. To address these issues, we propose StruMamba3D,…

‘We are perilously close to the point of no return’: climate scientist on Amazon rainforest’s future
https://www.theguardian.com/environment/ng-interactive/2025/jun/26/tippping-points-amazon-rainforest-climate-s…

It all went a bit full Swallows & Amazons at one point today. #LakeDistrict

Pretty much on point, amirite #StarWars #Andor fans?

Senate Majority Leader John Thune is about to force GOP holdouts to decide if they're willing to torpedo Trump's signature legislative agenda ahead of his arbitrary July 4 deadline.
What to watch: There is a growing possibility of floor fights — with senators seeking to strike unpopular parts of the bill via amendments.
Why it matters: Each hard-fought deal at this point risks blowing up another.
The Senate wants to start voting on the "big, beautiful bill&…

Senate plunges into do-or-die moment on "big, beautiful bill"
"That's why God made votes."

Learning Point Correspondences In Radar 3D Point Clouds For Radar-Inertial Odometry
Jan Michalczyk, Stephan Weiss, Jan Steinbrener
https://arxiv.org/abs/2506.18580

Learning Point Correspondences In Radar 3D Point Clouds For Radar-Inertial Odometry
Using 3D point clouds in odometry estimation in robotics often requires finding a set of correspondences between points in subsequent scans. While there are established methods for point clouds of sufficient quality, state-of-the-art still struggles when this quality drops. Thus, this paper presents a novel learning-based framework for predicting robust point correspondences between pairs of noisy, sparse and unstructured 3D point clouds from a light-weight, low-power, inexpensive, consumer-gra…

An Invariant for Triple-Point-Free Immersed Spheres
Jona Seidel
https://arxiv.org/abs/2506.21130 https://arxiv.org/pdf/2506.21130

An Invariant for Triple-Point-Free Immersed Spheres
We define an invariant of triple-point-free immersions of $2$-spheres into Euclidean $3$-space, taking values in $l^1(\mathbb{Z})$. It remains unchanged under regular homotopies through such immersions. An explicit description of its image shows that the space of triple-point-free immersed spheres has infinitely many regular homotopy classes. Consequently, many pairs of immersed spheres can only be connected by regular homotopies that pass through triple points. We represent the double points o…

Vantage Point Selection Algorithms for Bottleneck Capacity Estimation
Vikrant Ashvinkumar, Rezaul Chowdhury, Jie Gao, Mayank Goswami, Joseph S. B. Mitchell, Valentin Polishchuk
https://arxiv.org/abs/2506.21418

Vantage Point Selection Algorithms for Bottleneck Capacity Estimation
Motivated by the problem of estimating bottleneck capacities on the Internet, we formulate and study the problem of vantage point selection. We are given a graph $G=(V, E)$ whose edges $E$ have unknown capacity values that are to be discovered. Probes from a vantage point, i.e, a vertex $v \in V$, along shortest paths from $v$ to all other vertices, reveal bottleneck edge capacities along each path. Our goal is to select $k$ vantage points from $V$ that reveal the maximum number of bottleneck e…

Ensemble Modeling of the Solar Wind Flow with Boundary Conditions Governed by Synchronic Photospheric Magnetograms. I. Multi-point Validation in the Inner Heliosphere
Dinesha V. Hegde (Department of Space Science, The University of Alabama in Huntsville, Huntsville, USA, Center for Space Plasma and Aeronomic Research, The University of Alabama in Huntsville, Huntsville, USA), Tae K. Kim (Center for Space Plasma and Aeronomic Research, The University of Alabama in Huntsville, Huntsville…

Ensemble Modeling of the Solar Wind Flow with Boundary Conditions Governed by Synchronic Photospheric Magnetograms. I. Multi-point Validation in the Inner Heliosphere
The solar wind (SW) is a vital component of space weather, providing a background for solar transients such as coronal mass ejections, stream interaction regions, and energetic particles propagating toward Earth. Accurate prediction of space weather events requires a precise description and thorough understanding of physical processes occurring in the ambient SW plasma. Ensemble simulations of the three-dimensional SW flow are performed using an empirically-driven magnetohydrodynamic heliospher…

If Jesus had just won the primary for Mayor of New York City he would be pilloried as a "socialist".
It seems that many Christians don't seem to get the point that the preachings of Jesus are consistent with the precepts of socialism.

@… @… I don’t know what that post is about, but it’s not about a modern version of zsh.
Anyway, you seem to be missing my point, and it’s starting to feel like it’s on purpose.

Der neue #HungerGames -Roman #SunriseOnTheReaping ist einfach so unglaublich on point, was aktuelle Entwicklungen angeht - vor allem in Sachen Unterwerfung und Widerstand gegen eine unbesiegbar erscheinende Macht.
Mit diesem Band steht die gesamte Serie für mich jetzt in eine…

#today is forecast to reach my melting point, 30C, and Monday/Tuesday are each forecast to reach 33C. I'm not going to attempt to do very much today...

@… Just finished another helmet today. However, it's reaching a point where space is becoming an issue. Plus, I need to reserve funds for the cluster MOC.

@… I had no problem with 24.10 as a starting point. Switched to Kubuntu and upgraded to 25.04. Repeatedly (using VirtualBox for most tests).
I recently tested, repeatedly, the ability to recover after aggressively resetting the VM during an offline system update. A simple command successfully repaired things (online).
What's pictured is recomme…

Bei Power-Point-Presentationen sind die meisten Vortragenden noch immer nicht viel weiter gekommen. Gemessen an der Entfernung des am weitesten entfernten Zuhörers sind die Texte immer noch zu klein - unlesbar.
Frustrierend, dass man als TeilnehmerIn wohl am Smartphone die Session verfolgen muss, obwohl man live anwesend ist, um die Slides sehen und lesen zu können.
#respublica

Geez, I realized I hadn’t posted several recent books. There were a couple Nigerian science fiction books:
“Rosewater” by Tade Thompson. A mysterious alien biodome heals people when it opens up once a year, but Kaaro, who has some special abilities, begins to uncover some secrets that point to a more sinister purpose.
Loved the first half, but thought it fell off in the second half.
3/5 stars ⭐️ ⭐️ ⭐️

Rosewater (The Wormwood Trilogy, #1)
Tade Thompson's Rosewater is the start of an award-winn…

Point Cloud Environment-Based Channel Knowledge Map Construction
Yancheng Wang, Wei Guo, Guanying Chen, Ye Zhang, Shuguang Cui
https://arxiv.org/abs/2506.21112

Point Cloud Environment-Based Channel Knowledge Map Construction
Channel knowledge map (CKM) provides certain levels of channel state information (CSI) for an area of interest, serving as a critical enabler for environment-aware communications by reducing the overhead of frequent CSI acquisition. However, existing CKM construction schemes adopt over-simplified environment information, which significantly compromises their accuracy. To address this issue, this work proposes a joint model- and data-driven approach to construct CKM by leveraging point cloud env…

This https://arxiv.org/abs/2410.03475 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Noncommutative metric geometry of quantum circle bundles
In this paper we investigate quantum circle bundles from the point of view of compact quantum metric spaces. The raw input data is a circle action on a unital $C^*$-algebra together with a quantum metric of spectral geometric origin on the fixed point algebra. Under a few extra conditions on the spectral subspaces we show that the spectral geometric data on the base algebra can be lifted to the total algebra. Notably, the lifted spectral geometry is independent of the choice of frames and is pe…

Getting packed for a week long motorcycle camping trip. I leave tomorrow. This is a much much needed break.
First night I'll be camping in Point Pleasant, WV and visiting the Mothman museum. After that, heading over to the Red River Gorge in Kentucky, then looping down through Tennessee, North Carolina and back into West Virginia where I'm planning to spend a couple of days exploring sites like Audra State Park and Blackwater Falls. I'll be posting photos from the trip here…

Kann mir mal wirklich jemand on-point erklären, was so verwerflich an LLMs ist? Ich checks einfach nicht. Manchmal *such* ich gerade so eine Echokammer. Ich hab ja schon ne Erwartung, wie die Antwort aussehen soll - und nutz dann gerade denn Diff zur tatsächlichen Antwort. Ich versteh die Entrüstung einfach immer noch nicht.

Maxx Crosby points to NBA's Thunder when talking hopeful Raiders turnaround: 'We've got a lot of work to do' https://www.nfl.com/news/maxx-crosby-points-to-nba-s-thunder-when-talking-hopef…

Linear codes arising from the point-hyperplane geometry-Part I: the Segre embedding
Ilaria Cardinali, Luca Giuzzi
https://arxiv.org/abs/2506.21309 https://…

Linear codes arising from the point-hyperplane geometry-Part I: the Segre embedding
Let $V$ be a vector space over the finite field $\mathbb{F}_q$ with $q$ elements and $Λ$ be the image of the Segre geometry $\mathrm{PG}(V)\otimes\mathrm{PG}(V^*)$ in $\mathrm{PG}(V\otimes V^*)$. Consider the subvariety $Λ_{1}$ of $Λ$ represented by the pure tensors $x\otimes ξ$ with $x\in V$ and $ξ\in V^*$ such that $ξ(x)=0$. Regarding $Λ_1$ as a projective system of $\mathrm{PG}(V\otimes V^*)$, we study the linear code $\mathcal{C}(Λ_1)$ arising from it. The code $\mathcal{C}(Λ_1)$ i…

Follow the user meaningfully and product growth will follow: A mixed methods case study tying UX Point of View & Growth leading to measurable impact
Neha Raghuvanshi
https://arxiv.org/abs/2506.21195

Follow the user meaningfully and product growth will follow: A mixed methods case study tying UX Point of View & Growth leading to measurable impact
Have you wondered how cross-functional teams balance between maximizing value that users derive and business growth leading to win-win situations? This case study shows how User Experience Research (UXR) and Data Science teams used mixed methods research to strategically influence Product Led Growth (PLG) for a Password Manager used by million+ users, thus allowing our users, internal teams, and business to win. The audience will take away practical lessons/techniques related to leveraging mixe…

Three-point functions from integrability in $\mathcal{N}=2$ orbifold theories
Dennis le Plat, Torben Skrzypek
https://arxiv.org/abs/2506.21323 https://

Three-point functions from integrability in $\mathcal{N}=2$ orbifold theories
Besides solving the spectral problem of $\mathcal{N}=4$ Super-Yang-Mills (SYM) theory, integrability also provides us with tools to compute the structure constants of the theory, most prominently through the hexagon formalism. We show that, with minor modifications, this formalism can also be applied to orbifolds of $\mathcal{N}=4$ SYM theory, which are integrable theories in their own right. To substantiate this claim, we test our results against a direct gauge-theory calculation at tree-level…

I'm nervous about Southend being combined with Rochford and Castle Point - will those rural councils understand our urban needs? It risks a change in character and priorities.
We already share the same bus and train transport network. We need nearby councils working with us to grow the city, as we have no fields to build on.
Our neighbours often build car-focused housing and send us the traffic. Will they embrace city life? Will they force us to build roads? Risks and opport…

Parallel Point-to-Point Shortest Paths and Batch Queries
Xiaojun Dong, Andy Li, Yan Gu, Yihan Sun
https://arxiv.org/abs/2506.16488 https://

Parallel Point-to-Point Shortest Paths and Batch Queries
We propose Orionet, efficient parallel implementations of Point-to-Point Shortest Paths (PPSP) queries using bidirectional search (BiDS) and other heuristics, with an additional focus on batch PPSP queries. We present a framework for parallel PPSP built on existing single-source shortest paths (SSSP) frameworks by incorporating pruning conditions. As a result, we develop efficient parallel PPSP algorithms based on early termination, bidirectional search, A$^*$ search, and bidirectional A$^*$ al…

«At this point, things are so ridiculous that I feel like I'm huffing paint fumes every time I read Techmeme. If you're a member of the media reading this, I implore you to look more critically on what's going on, to learn about the industries in question and begin asking yourselves why you continually and blandly write up whatever it is they say.»
🔥🔥🔥
https://www.wheresyoured.at/measures/

webkb: WebKB graphs (1998)
Web graphs crawled from four Computer Science departments in 1998, with each page manually classified into one of 7 categories: course, department, faculty, project, staff, student, or other. All graphs included in a single .zip; also included are 'co-citation' graphs, which links i and j if they both point to some k. Edge weights count the number of links from i to j.
This network has 300 nodes and 1155 edges.
Tags: Informational, Web gra…

"A common Israeli taking point [is] 'How should America respond if rockets were launched from Tijuana at San Diego?' ... it highlights both Israeli ignorance and fears and Palestinian and Xicano/Migrant commonality. Just like how Tel Aviv and Gaza are part of Historic Palestine, San Diego and Tijuana were both Mexico but more importantly part of the homeland of the Kumeyaay People."

This https://arxiv.org/abs/2504.11916 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Non-vanishing of Dirichlet $L$-functions at the Central Point
We prove that for at least $\frac{7}{19}$ of the primitive Dirichlet characters $χ$ with large general modulus, the central value $L(\frac12,χ)$ is non-vanishing.

Faster Fixed-Point Methods for Multichain MDPs
Matthew Zurek, Yudong Chen
https://arxiv.org/abs/2506.20910 https://arxiv.org/pdf/2506…

Faster Fixed-Point Methods for Multichain MDPs
We study value-iteration (VI) algorithms for solving general (a.k.a. multichain) Markov decision processes (MDPs) under the average-reward criterion, a fundamental but theoretically challenging setting. Beyond the difficulties inherent to all average-reward problems posed by the lack of contractivity and non-uniqueness of solutions to the Bellman operator, in the multichain setting an optimal policy must solve the navigation subproblem of steering towards the best connected component, in additi…

Measurements, simulations, and models of the point-spread function of electron-beam lithography
Nikolaj B. Hougs, Kristian S. Knudsen, Marcus Albrechtsen, Taichi Suhara, Christian A. Rosiek, S{\o}ren Stobbe
https://arxiv.org/abs/2506.21236

Measurements, simulations, and models of the point-spread function of electron-beam lithography
When a sample is exposed using electron-beam lithography, the electrons scatter deep and far in the substrate, resulting in unwanted deposition of dose at both the nano- and the microscale. This proximity effect can be mitigated by proximity effect correction provided that accurate and validated models of the point-spread function of the electron scattering are available. Most works so far considered a double-Gaussian model of the electron point-spread function, which is very inaccurate for mod…

White-breasted nuthatch, Sitta carolinensis, in absolutely classic nuthatch form up at Glacier Point in Yosemite National Park
#naturalist #bird #wildlife

At this point, I would like to thank the Polish Ministry of Infrastructure and PKP PLK company for repeatedly delaying the electrification of railway line 203 on the Krzyż — Piła segment. As a result of this kind of good maintenance, during today's closing of the traffic on line 354 near Budzyń, PKP InterCity trains (with electric locomotives) needed to take a (longer) detour through Bydgoszcz, and therefore they did not cause any delays on lines 203 and 351. Thanks to that, I was able to easily catch my 10-minute change, and the whole ordeal only cost me 30 minutes total.
#rail

You know you're at a low point with your current #job when you go to access the Sharepoint or some network facility and its unavailable and your first thought is "Yes, they've locked me out! Maybe I'm getting packaged out."
In reality its just bad IT. How does #SharePoint go down, its manag…

Entanglement and quench dynamics in the thermally perturbed tricritical fixed point
Csilla Kir\'aly, M\'at\'e Lencs\'es
https://arxiv.org/abs/2506.19596

Entanglement and quench dynamics in the thermally perturbed tricritical fixed point
We consider the Blume-Capel model in the scaling limit to realize the thermal perturbation of the tricritical Ising fixed point. We develop a numerical scaling-limit extrapolation for one-point functions and Rényi entropies in the ground state. In a mass quench scenario, we found long-living oscillations despite the absence of explicit spin-flip symmetry breaking or confining potential. We construct form factors of branch-point twist fields in the paramagnetic phase. In the scaling limit of sm…

For most of human history we lived in food scarcity. Now large portions of the world lives in such food abundance to the point that many food companies compete to be the most delicious food divorced from nutrition as we don't know know how to handle this. I'm eating Cheetos as I write this.
Now the same thing has happened with information. It used to be scares and is now abundant and now competes divorced from it's original need to actual inform.

Harmoknight: completed!
Harmoknight is best described as a rhythm platformer, although the platforming is basic at best and the rhythms are simple. You have two buttons - a jump, and an attack - and you have to either jump or attack in time with the music's beat. In most cases it's sufficient to react in time to seeing the gap or enemy, but on occasion the screen zooms in and reaction times are just too long; it's at this point that you'll lose too many lives and have…

Subtooting since people in the original thread wanted it to be over, but selfishly tagging @… and @… whose opinions I value...
I think that saying "we are not a supply chain" is exactly what open-source maintainers should be doing right now in response to "open source supply chain security" threads.
I can't claim to be an expert and don't maintain any important FOSS stuff, but I do release almost all of my code under open licenses, and I do use many open source libraries, and I have felt the pain of needing to replace an unmaintained library.
There's a certain small-to-mid-scale class of program, including many open-source libraries, which can be built/maintained by a single person, and which to my mind best operate on a "snake growth" model: incremental changes/fixes, punctuated by periodic "skin-shedding" phases where make rewrites or version updates happen. These projects aren't immortal either: as the whole tech landscape around them changes, they become unnecessary and/or people lose interest, so they go unmaintained and eventually break. Each time one of their dependencies breaks (or has a skin-shedding moment) there's a higher probability that they break or shed too, as maintenance needs shoot up at these junctures. Unless you're a company trying to make money from a single long-lived app, it's actually okay that software churns like this, and if you're a company trying to make money, your priorities absolutely should not factor into any decisions people making FOSS software make: we're trying (and to a huge extent succeeding) to make a better world (and/or just have fun with our own hobbies share that fun with others) that leaves behind the corrosive & planet-destroying plague which is capitalism, and you're trying to personally enrich yourself by embracing that plague. The fact that capitalism is *evil* is not an incidental thing in this discussion.
To make an imperfect analogy, imagine that the peasants of some domain have set up a really-free-market, where they provide each other with free stuff to help each other survive, sometimes doing some barter perhaps but mostly just everyone bringing their surplus. Now imagine the lord of the domain, who is the source of these peasants' immiseration, goes to this market secretly & takes some berries, which he uses as one ingredient in delicious tarts that he then sells for profit. But then the berry-bringer stops showing up to the free market, or starts bringing a different kind of fruit, or even ends up bringing rotten berries by accident. And the lord complains "I have a supply chain problem!" Like, fuck off dude! Your problem is that you *didn't* want to build a supply chain and instead thought you would build your profit-focused business in other people's free stuff. If you were paying the berry-picker, you'd have a supply chain problem, but you weren't, so you really have an "I want more free stuff" problem when you can't be arsed to give away your own stuff for free.
There can be all sorts of problems in the really-free-market, like maybe not enough people bring socks, so the peasants who can't afford socks are going barefoot, and having foot problems, and the peasants put their heads together and see if they can convince someone to start bringing socks, and maybe they can't and things are a bit sad, but the really-free-market was never supposed to solve everyone's problems 100% when they're all still being squeezed dry by their taxes: until they are able to get free of the lord & start building a lovely anarchist society, the really-free-market is a best-effort kind of deal that aims to make things better, and sometimes will fall short. When it becomes the main way goods in society are distributed, and when the people who contribute aren't constantly drained by the feudal yoke, at that point the availability of particular goods is a real problem that needs to be solved, but at that point, it's also much easier to solve. And at *no* point does someone coming into the market to take stuff only to turn around and sell it deserve anything from the market or those contributing to it. They are not a supply chain. They're trying to help each other out, but even then they're doing so freely and without obligation. They might discuss amongst themselves how to better coordinate their mutual aid, but they're not going to end up forcing anyone to bring anything or even expecting that a certain person contribute a certain amount, since the whole point is that the thing is voluntary & free, and they've all got changing life circumstances that affect their contributions. Celebrate whatever shows up at the market, express your desire for things that would be useful, but don't impose a burden on anyone else to bring a specific thing, because otherwise it's fair for them to oppose such a burden on you, and now you two are doing your own barter thing that's outside the parameters of the really-free-market.

Functoriality of the Klein-Williams Invariant and Universality Theory
Ba\c{s}ak K\"u\c{c}\"uk
https://arxiv.org/abs/2505.22376 https://

Functoriality of the Klein-Williams Invariant and Universality Theory
Both the Klein-Williams invariant $\ell_G(f)$ from \cite{KW2} and the generalized equivariant Lefschetz invariant $λ_G(f)$ from \cite{weber07} serve as complete obstructions to the fixed point problem in the equivariant setting. The latter is functorial in the sense of Definition \ref{functorial}. The first part of this paper aims to demonstrate that $\ell_G(f)$ is also functorial. The second part summarizes the ``universality" theory of such functorial invariants, developed in \cites{lueck199…

This https://arxiv.org/abs/2403.08522 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Random groups are not n-cubulated
A group $G$ has $FW_n$ if every action on a $n$-dimensional $\mathrm{CAT}(0)$ cube complex has a global fixed point. This provides a natural stratification between Serre's $FA$ and Kazhdan's $(T)$. For every $n$, we show that random groups in the plain words density model have $FW_n$ with overwhelming probability. The same result holds for random groups in the reduced words density model assuming there are sufficiently many generators. These are the first examples of cubulated hyperbolic groups…

This https://arxiv.org/abs/2404.14350 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Highest-weight vectors and three-point functions in GKO coset decomposition
We revisit the classical Goddard-Kent-Olive coset construction. We find the formulas for the highest weight vectors in coset decomposition and calculate their norms. We also derive formulas for matrix elements of natural vertex operators between these vectors. This leads to relations on conformal blocks. Due to the AGT correspondence, these relations are equivalent to blowup relations on Nekrasov partition functions with the presence of the surface defect. These relations can be used to prove K…

The challenge of HEPA filters in the classrooms.
h/t @…
source: https://xcancel.com/kadamssl/status/1938267359233429683#m

Counting Reciprocal Hyperbolic Elements in Hecke Groups
Ara Basmajian, Blanca Marmolejo, Robert Suzzi Valli
https://arxiv.org/abs/2505.21365 https://

Counting Reciprocal Hyperbolic Elements in Hecke Groups
A reciprocal geodesic on a (2,k, $\infty$) Hecke surface is a geodesic loop based at an even order cone point p traversing its path an even number of times. Associated to each reciprocal geodesic is the conjugacy class of a hyperbolic element in the (2,k,$\infty$) Hecke group whose axis passes through a cone point that projects to p. Such an element is called a reciprocal hyperbolic element based at p. In this paper, we determine the asymptotic growth rate and limiting constant (in terms of w…

Series B, Episode 05 - Pressure Point
CALLY: I'd prefer that to being here.
VILA: You're welcome to take my place when the time comes.
AVON: If it comes.
CALLY: What do you mean?
AVON: Something's not right.
https://blake.torpidity.net/m/205/245…

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

Efficient Precision-Scalable Hardware for Microscaling (MX) Processing in Robotics Learning
Stef Cuyckens, Xiaoling Yi, Nitish Satya Murthy, Chao Fang, Marian Verhelst
https://arxiv.org/abs/2505.22404

Efficient Precision-Scalable Hardware for Microscaling (MX) Processing in Robotics Learning
Autonomous robots require efficient on-device learning to adapt to new environments without cloud dependency. For this edge training, Microscaling (MX) data types offer a promising solution by combining integer and floating-point representations with shared exponents, reducing energy consumption while maintaining accuracy. However, the state-of-the-art continuous learning processor, namely Dacapo, faces limitations with its MXINT-only support and inefficient vector-based grouping during backpro…

This https://arxiv.org/abs/2304.05844 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Fixed-point statistics from spectral measures on tensor envelope categories
We prove some old and new convergence statements for fixed-points statistics using tensor envelope categories, such as the Deligne--Knop category of representations of the "symmetric group" $S_t$ for an indeterminate~$t$. We also discuss some arithmetic speculations related to Chebotarev's density theorem.

A Graph Completion Method that Jointly Predicts Geometry and Topology Enables Effective Molecule Assembly
Rohan V. Koodli, Alexander S. Powers, Ayush Pandit, Chiho Im, Ron O. Dror
https://arxiv.org/abs/2505.21833

A Graph Completion Method that Jointly Predicts Geometry and Topology Enables Effective Molecule Assembly
A common starting point for drug design is to find small chemical groups or "fragments" that form interactions with distinct subregions in a protein binding pocket. The subsequent challenge is to assemble these fragments into a molecule that has high affinity to the protein, by adding chemical bonds between atoms in different fragments. This "molecule assembly" task is particularly challenging because, initially, fragment positions are known only approximately. Prior methods for spatial graph c…

But here’s the thing: anyone could make music •before• gen AI. Some more skilled or more artistically successful than others, sure! But that’s not the point. •Doing it• is the point. •Living it• is the point.
A product that promises to generate it for you so that you neither do it nor live it is antithetical to the point, is hostile to the idea of art itself.
(Note: that’s exactly what the artists in the OP are •not• doing! They are all grabbing the AI and actively •doing• and •living• while poking at the curious new object.)
5/

This https://arxiv.org/abs/2408.05481 has been replaced.
link: https://scholar.google.com/scholar?q=a

Covariant Electromagnetism in Past-Light-Cone Formalism
We present a manifestly covariant formulation of relativistic electromagnetism, focusing on the computation of electromagnetic fields from moving charges in a manifestly Lorentz-covariant manner. The electromagnetic field at a given spacetime point is determined by the motion of point charges at the intersection of their worldlines with the past light cone of the spacetime point, ensuring causal consistency. This formalism provides a manifestly covariant generalization of the Liénard-Wiechert …

Excising Cauchy Horizons with Nonlinear Electrodynamics
Tom\'a\v{s} Hale, Robie A. Hennigar, David Kubiznak
https://arxiv.org/abs/2506.20802 https://…

Excising Cauchy Horizons with Nonlinear Electrodynamics
Charged and/or rotating black holes in General Relativity feature Cauchy horizons, which indicate a breakdown of predictability in the theory. Focusing on spherically symmetric charged black holes, we remark that the inevitability of Reissner-Nordstrom Cauchy horizon is due to the divergent electromagnetic self-energy of point charges. We demonstrate that any causal theory of nonlinear electrodynamics that regularizes the point charge self-energy also eliminates Cauchy horizons for weakly charg…

I’m at the point now where I inherently distrust any white man with a bad haircut. https://mastodon.social/@Snoro/114743381099800265

Floating-Point Data Transformation for Lossless Compression
Samirasadat Jamalidinan, Kazem Cheshmi
https://arxiv.org/abs/2506.18062 https://

Floating-Point Data Transformation for Lossless Compression
Floating-point data is widely used across various domains. Depending on the required precision, each floating-point value can occupy several bytes. Lossless storage of this information is crucial due to its critical accuracy, as seen in applications such as medical imaging and language model weights. In these cases, data size is often significant, making lossless compression essential. Previous approaches either treat this data as raw byte streams for compression or fail to leverage all pattern…

At some point, the Supreme Court will have shredded the US Constitution so much that we need to start over after the war.
#constitution #scotus #CivilWar

I made a new friend today in Albion Europe.
ZairGT...I think native language is Spanish but also speaks English.
I found this Tree T4.3 in a blue zone and I went to it back and forth. At one point I find ZairGT(both him and me unflagged, no FW) there...and the gathering duel was "short and bloody" and I realized I have no chance to take that.
I admitted defeat and often went there and did the 1 sign and WP...
part 2 soon...

#WordWeavers 27 May
Do you specifically design your characters, or do they develop as you write?
I begin with a core, things happens that change that core. Like rolling a snowball in the snow. It grows, gets layered. I apply some pressure, see what happens.
It's a growing process mostly. I almost never begin writing at the beginning, but at a point earlier, so that i can hit…

Saddle-point method for resummed form factors in QCD
Ugo Giuseppe Aglietti, Giancarlo Ferrera, Wan-Li Ju
https://arxiv.org/abs/2506.18707 https://

Saddle-point method for resummed form factors in QCD
We consider the form factor appearing in QCD resummation formalism for event shape distributions in the two-jet (or Sudakov) region. We present an analytic formula for the inverse transform of the form factor, namely from the conjugate moment space to the (physical) momentum space, based on the saddle-point method. The saddle-point itself is determined by means of an analytic recursion method as well as by standard numerical methods. The results we have found are in very good agreement with the…

Robust and efficient pre-processing techniques for particle-based methods including dynamic boundary generation
Niklas S. Neher, Erik Faulhaber, Sven Berger, Christian Wei{\ss}enfels, Gregor J. Gassner, Michael Schlottke-Lakemper
https://arxiv.org/abs/2506.21206

Robust and efficient pre-processing techniques for particle-based methods including dynamic boundary generation
Obtaining high-quality particle distributions for stable and accurate particle-based simulations poses significant challenges, especially for complex geometries. We introduce a preprocessing technique for 2D and 3D geometries, optimized for smoothed particle hydrodynamics (SPH) and other particle-based methods. Our pipeline begins with the generation of a resolution-adaptive point cloud near the geometry's surface employing a face-based neighborhood search. This point cloud forms the basis for …

This https://arxiv.org/abs/2412.04265 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_eco…

On Extrapolation of Treatment Effects in Multiple-Cutoff Regression Discontinuity Designs
Regression discontinuity (RD) designs typically identify the treatment effect at a single cutoff point, which may not always be the primary interest. When and how, then, can we learn about treatment effects away from the cutoff? This paper addresses this question within a multiple-cutoff RD framework. We begin by examining the plausibility of the constant bias assumption proposed by Cattaneo, Keele, Titiunik, and Vazquez-Bare (2021) through the lens of rational decision-making behavior. We argu…

TDACloud: Point Cloud Recognition Using Topological Data Analysis
Anirban Ghosh, Ian Dahlin, Ayan Dutta
https://arxiv.org/abs/2506.18725 https://

TDACloud: Point Cloud Recognition Using Topological Data Analysis
Point cloud-based object/place recognition remains a problem of interest in applications such as autonomous driving, scene reconstruction, and localization. Extracting meaningful local descriptors from a query point cloud that can be matched with the descriptors of the collected point clouds is a challenging problem. Furthermore, when the query point cloud is noisy or has been transformed (e.g., rotated), it adds to the complexity. To this end, we propose a novel methodology, named TDACloud, us…

Can anyone point me to a ansible zabbix inventory tutorial? Not the ansible doc page, I'm going to need something more dumbed down than that. I'm not building a new Zabbix server, but I am building a new ansible server. #zabbix #ansible

I learned something new today. #LIDAR can damage the CMOS in digital cameras.
https://www.carscoops.com/2025/05/dont-point-your-phone-at-these-c…

A Burns-Krantz type theorem for Blaschke products
Annika Moucha
https://arxiv.org/abs/2505.21346 https://arxiv.org/pdf/2505.21346

A Burns-Krantz type theorem for Blaschke products
Let $f$ be a holomorphic function mapping the open unit disk into itself. We establish a boundary version of Schwarz' lemma in the spirit of a result by Burns and Krantz and provide sufficient conditions on the local behaviour of $f$ near some boundary point that forces $f$ to be a Blaschke product with predescribed critical points. For the proof, a local Julia type inequality based on Nehari's sharpening of Schwarz' lemma is established.

I've reached the point in my life where my meaning of "booting" a computer does not match the meaning usually ascribed to the term.

hey friends! One more photo from my recent hike into the #mountains .
My way went from this point to the right over the summit (not seen on the photo), down to the ridge (right into the photo), along the ridge, and down into the middle of the photo.
An amazing day and an impressive trail!

I don't want to point fingers, so won't mention any names, but what would you think of an Open Source project where the main developer loves one- or two-word commit messages like:
push
fix push
cleaning
fix
async
But hey, as an end user, as long as it is tasty, no need to visit there sausage factory.

A quel point je dois m'inquiéter quand Moodle m'indique que 75% de mes questions sont "très probablement" Š vérifier ? 😂
#teameduc

Deciding Robust Instances of an Escape Problem for Dynamical Systems in Euclidean Space
Eike Neumann
https://arxiv.org/abs/2506.21481 https://

Deciding Robust Instances of an Escape Problem for Dynamical Systems in Euclidean Space
We study the problem of deciding whether a point escapes a closed subset of $\mathbb{R}^d$ under the iteration of a continuous map $f \colon \mathbb{R}^d \to \mathbb{R}^d$ in the bit-model of real computation. We give a sound partial decision method for this problem which is complete in the sense that its halting set contains the halting set of all sound partial decision methods for the problem. Equivalently, our decision method terminates on all problem instances whose answer is robust under a…

Non-Gaussian statistics in galaxy weak lensing: compressed three-point correlations and cosmological forecasts
Sofia Samario-Nava, Alejandro Aviles, Juan Carlos Hidalgo
https://arxiv.org/abs/2506.19811

Non-Gaussian statistics in galaxy weak lensing: compressed three-point correlations and cosmological forecasts
Building on previous developments of a harmonic decomposition framework for computing the three-point correlation function (3PCF) of projected scalar fields over the sky, this work investigates how much cosmological information is contained in these higher-order statistics. We perform a forecast to determine the number of harmonic multipoles required to capture the full information content of the 3PCF in the context of galaxy weak lensing, finding that only the first few multipoles are sufficie…

Some Fixed Point Theorems in $(\alpha,\beta)$- Metric Spaces with applications to Fredholm integral and non-linear differential equations
Irfan Ahmed, Shallu Sharma, Sahil Billawria
https://arxiv.org/abs/2506.17225

Some Fixed Point Theorems in $(α,β)$- Metric Spaces with applications to Fredholm integral and non-linear differential equations
In this paper, we presented a new type of metric space called $(α,β)$-metric space along with some novel contraction mappings named $(α,β)$-contraction and weak $(α,β)$-contraction mapping. We established some fixed point theorem for these newly introduced contractive mappings. Our results extended some fixed point results in the existing literature. We also provide an example which holds for the weak $(α,β)$-contraction. Furthermore, we proved Kannan's fixed point theorem and Reich's f…

First night of my Southern #MotoCamping trip. Camped right on the shore of the Kanawa River just outside of Point Pleasant, WV. Tomorrow morning after breaking camp I'll head into town to visit the #mothman statue and museum, then on to the Red River Gorge.

Ground states of the planar nonlinear Schr\"odinger--Newton system with a point interaction
Gustavo de Paula Ramos
https://arxiv.org/abs/2506.18202 ht…

Ground states of the planar nonlinear Schrödinger--Newton system with a point interaction
We establish sufficient conditions for the existence of ground states of the following normalized nonlinear Schrödinger--Newton system with a point interaction: \[ \begin{cases} - Δ_αu = w u + βu |u|^{p - 2} &\text{on} ~ \mathbb{R}^2; \\ - Δw = 2 π|u|^2 &\text{on} ~ \mathbb{R}^2; \\ \|u\|_{L^2}^2 = c, \end{cases} \] where $p > 2$; $α, β\in \mathbb{R}$ and $- Δ_α$ denotes the Laplacian of point interaction with scattering length $(- 2 πα)^{- 1}$. Additio…

Diffusion-Based Hypothesis Testing and Change-Point Detection
Sean Moushegian, Taposh Banerjee, Vahid Tarokh
https://arxiv.org/abs/2506.16089 https://

Diffusion-Based Hypothesis Testing and Change-Point Detection
Score-based methods have recently seen increasing popularity in modeling and generation. Methods have been constructed to perform hypothesis testing and change-point detection with score functions, but these methods are in general not as powerful as their likelihood-based peers. Recent works consider generalizing the score-based Fisher divergence into a diffusion-divergence by transforming score functions via multiplication with a matrix-valued function or a weight matrix. In this paper, we ext…

im a perfect marriage between heaven and hell, yin and yang. my primary source is literature, science, and art, yet thanks to the other zoomers i follow who do use tiktok, i can have familiarity with the depraved mindkilling my generation is force-addicted to without destroying myself to the point i can't create good art with it in mind

Meson spectroscopy of exotic symmetries of Ising criticality in Rydberg atom arrays
Joseph Vovrosh, Julius de Hond, Sergi Juli\`a-Farr\'e, Johannes Knolle, Alexandre Dauphin
https://arxiv.org/abs/2506.21299

Meson spectroscopy of exotic symmetries of Ising criticality in Rydberg atom arrays
The Ising model serves as a canonical platform for exploring emergent symmetry in quantum critical systems. The critical point of the 1D Ising chain is described by a conformal Ising field theory, which remains integrable in the presence of a magnetic perturbation leading to massive particles associated with the exceptional Lie algebra $E_8$. Coupling two Ising chains in a ladder leads to an even richer $\mathcal{D}^{(1)}_8$ symmetry. Experimental signatures of the associated particle excitatio…

Beyond one-loop: higher-order effects on Gross-Neveu-Yukawa tensorial criticality
SangEun Han, Igor F. Herbut
https://arxiv.org/abs/2506.20710 https://

Beyond one-loop: higher-order effects on Gross-Neveu-Yukawa tensorial criticality
We study the Gross-Neveu-Yukawa field theory for the SO($N$) symmetric traceless rank-two tensor order parameter coupled to Majorana fermions using the $ε$-expansion around upper critical dimensions of $3+1$ to two loops. Previously we established in the one-loop calculation that the theory does not exhibit a critical fixed point for $N \geq 4$, but that nevertheless the stable fixed point inevitably emerges at a large number of fermion flavors $N_f$. For $N_f < N_{f,c1} \approx N/2$, no criti…

$\eta$ and $\eta'$ mesons from $N_f = 2 1$ lattice QCD at the physical point using topological charge operators
Yue Su, Nan Wang, Long-cheng Gui, Jun Hua, Jian Liang, Jun Shi
https://arxiv.org/abs/2505.19775

$η$ and $η'$ mesons from $N_f = 2+1$ lattice QCD at the physical point using topological charge operators
By fitting the two-point correlation functions of topological charge density operators calculated on two $2+1$-flavor gauge ensembles with physical pion mass, we determine both the $η$ and $η'$ masses and also the mixing angle to be $m_η= 0.522(27)(22)$ GeV, $m_{η'}=0.970(56)(17)$ GeV, and $θ_1 = -10.7(1.4)(0.2)^\circ$, respectively, where the first error is the statistical uncertainty and the second one is the systematic uncertainty of lattice discretization effects. This is the first ext…

«At this point, things are so ridiculous that I feel like I'm huffing paint fumes every time I read Techmeme. If you're a member of the media reading this, I implore you to look more critically on what's going on, to learn about the industries in question and begin asking yourselves why you continually and blandly write up whatever it is they say.»
🔥🔥🔥
https://www.wheresyoured.at/measures/

A Deep Learning Approach to Identify Rock Bolts in Complex 3D Point Clouds of Underground Mines Captured Using Mobile Laser Scanners
Dibyayan Patra, Pasindu Ranasinghe, Bikram Banerjee, Simit Raval
https://arxiv.org/abs/2506.20464

A Deep Learning Approach to Identify Rock Bolts in Complex 3D Point Clouds of Underground Mines Captured Using Mobile Laser Scanners
Rock bolts are crucial components of the subterranean support systems in underground mines that provide adequate structural reinforcement to the rock mass to prevent unforeseen hazards like rockfalls. This makes frequent assessments of such bolts critical for maintaining rock mass stability and minimising risks in underground mining operations. Where manual surveying of rock bolts is challenging due to the low light conditions in the underground mines and the time-intensive nature of the proces…

Modular fixed points in equivariant homotopy theory
Yorick Fuhrmann
https://arxiv.org/abs/2506.21413 https://arxiv.org/pdf/2506.21413…

Modular fixed points in equivariant homotopy theory
We show that the derived $\infty$-category of permutation modules is equivalent to the category of modules over the Eilenberg-MacLane spectrum associated to a constant Mackey functor in the $\infty$-category of equivariant spectra. On such module categories we define a modular fixed point functor using geometric fixed points followed by an extension of scalars and identify it with the modular fixed point functor on derived permutation modules introduced by Balmer-Gallauer. As an application, we…

To this day I'm still not sure whether the fact that none of the circumstances in the song Ironic are _actually_ irony, does in fact, make the song ironic or not, but at this point Im too afraid to ask.
#AlanisMorissette #irony

Closed-Form Decomposition for Simplicial Cones and PDBarv Algorithm for Lattice Point Counting
Sihao Tao, Guoce Xin, Zihao Zhang
https://arxiv.org/abs/2506.19322

Closed-Form Decomposition for Simplicial Cones and PDBarv Algorithm for Lattice Point Counting
Counting lattice points within a rational polytope is a foundational problem with applications across mathematics and computer science. A key approach is Barvinok's algorithm, which decomposes the lattice point generating function of cones to that of unimodular cones. However, standard implementations face difficulties: the original primal method struggles with points on cone boundaries, while the alternative dual method can be slow for certain cone types. This paper introduces two main contr…

Pushing the Complexity Boundaries of Fixed-Point Equations: Adaptation to Contraction and Controlled Expansion
Jelena Diakonikolas
https://arxiv.org/abs/2506.17698

Pushing the Complexity Boundaries of Fixed-Point Equations: Adaptation to Contraction and Controlled Expansion
Fixed-point equations with Lipschitz operators have been studied for more than a century, and are central to problems in mathematical optimization, game theory, economics, and dynamical systems, among others. When the Lipschitz constant of the operator is larger than one (i.e., when the operator is expansive), it is well known that approximating fixed-point equations becomes computationally intractable even in basic finite-dimensional settings. In this work, we aim to push these complexity boun…

Continuous symmetry breaking in 1D spin chains and 1 1D field theory
Adam Nahum
https://arxiv.org/abs/2506.21540 https://arxiv.org/pd…

Continuous symmetry breaking in 1D spin chains and 1+1D field theory
We argue that ground states of 1D spin chains can spontaneously break U(1) ``easy-plane'' spin rotation symmetry, via true long-range order of $(S^x, S^y)$, at the phase transition between two quasi-long-range-ordered phases. The critical point can be reached by tuning a single parameter in a Hamiltonian with the same symmetry as the XXZ model, without further fine-tuning. Equivalently, it can arise in systems of bosons with particle-hole symmetry, as a long-range-ordered transition point betwe…

#WordWeavers 27 May
Do you specifically design your characters, or do they develop as you write?
I begin with a core, things happens that change that core. Like rolling a snowball in the snow. It grows, gets layered. I apply some pressure, see what happens.
It's a growing process mostly. I almost never begin writing at the beginning, but at a point earlier, so that i can hit…

Terry McLaurin contract: $30 million payout may be sticking point in talks between Commanders, star wideout

https://www.cbssports.com/nfl/news/te…

I learned something new today. #LIDAR can damage the CMOS in digital cameras.
https://www.carscoops.com/2025/05/dont-point-your-phone-at-these-c…

https://mccraryinstitute.com/podcast/cyber-focus/77/to-the-point-irans-cyber-threat-aft/
Frank Cilluffo of the McCrary Institute hosted a special episode of his podcast with the great cyber policy expert Mark Montgomery on the likelihood of…

Numerical analysis of scattered point measurement-based regularization for backward problems for fractional wave equations
Dakang Cen, Zhiyuan Li, Wenlong Zhang
https://arxiv.org/abs/2506.18948

Numerical analysis of scattered point measurement-based regularization for backward problems for fractional wave equations
In this work, our aim is to reconstruct the unknown initial value from terminal data. We develop a numerical framework on nonuniform time grids for fractional wave equations under the lower regularity assumptions. Then, we introduce a regularization method that effectively handles scattered point measurements contaminated with stochastic noise. The optimal error estimates of stochastic convergence not only balance discretization errors, the noise, and the number of observation points, but also …

Solving Infinite Families of Dual Conformal Integrals and Periods
Song He, Xuhang Jiang
https://arxiv.org/abs/2506.20095 https://arxi…

Solving Infinite Families of Dual Conformal Integrals and Periods
We compute infinite families of all-loop planar, dual conformal invariant (DCI) integrals, which contribute to four-point Coulomb-branch amplitudes and correlators in ${\cal N}=4$ supersymmetric Yang-Mills theory, by solving ``boxing" differential equations via package HyperlogProcedures; this amounts to an ``inverse-boxing" operation/integration recursively acting on lower-loop cases (with the box integral as the starting point), and the resulting single-valued harmonic polylogarithmic functio…

Alpay Algebra III: Observer-Coupled Collapse and the Temporal Drift of Identity
Faruk Alpay
https://arxiv.org/abs/2505.19790 https://…

Alpay Algebra III: Observer-Coupled Collapse and the Temporal Drift of Identity
This paper introduces a formal framework for modeling observer-dependent collapse dynamics and temporal identity drift within artificial and mathematical systems, grounded entirely in the symbolic foundations of Alpay Algebra. Building upon the fixed-point emergence structures developed in Alpay Algebra I and II, this third installment formalizes the observer-coupled ϕ-collapse process through transfinite categorical flows and curvature-driven identity operators. We define a novel temporal dri…

Whole-Body Conditioned Egocentric Video Prediction
Yutong Bai, Danny Tran, Amir Bar, Yann LeCun, Trevor Darrell, Jitendra Malik
https://arxiv.org/abs/2506.21552

Whole-Body Conditioned Egocentric Video Prediction
We train models to Predict Ego-centric Video from human Actions (PEVA), given the past video and an action represented by the relative 3D body pose. By conditioning on kinematic pose trajectories, structured by the joint hierarchy of the body, our model learns to simulate how physical human actions shape the environment from a first-person point of view. We train an auto-regressive conditional diffusion transformer on Nymeria, a large-scale dataset of real-world egocentric video and body pose c…