Tootfinder

Theoretical Learning Performance of Graph Neural Networks: The Impact of Jumping Connections and Layer-wise Sparsification
Jiawei Sun, Hongkang Li, Meng Wang
https://arxiv.org/abs/2507.05533

Theoretical Learning Performance of Graph Neural Networks: The Impact of Jumping Connections and Layer-wise Sparsification
Jumping connections enable Graph Convolutional Networks (GCNs) to overcome over-smoothing, while graph sparsification reduces computational demands by selecting a sub-matrix of the graph adjacency matrix during neighborhood aggregation. Learning GCNs with graph sparsification has shown empirical success across various applications, but a theoretical understanding of the generalization guarantees remains limited, with existing analyses ignoring either graph sparsification or jumping connections.…

Moduli space of spin connections on three-dimensional homogeneous spaces
Matteo Bruno, Gabriele Peluso
https://arxiv.org/abs/2507.06104 https://

Moduli space of spin connections on three-dimensional homogeneous spaces
In this manuscript, we aim to classify and characterize the moduli space of homogeneous spin connections and homogeneous $SU(2)$ connections on three-dimensional Riemannian homogeneous spaces. An analysis of the topology of the associated moduli spaces reveals that they are finite-dimensional topological manifolds (possibly with boundary) possessing trivial homotopy groups. Owing to their deep connection with cosmological models in the Ashtekar-Barbero-Immirzi formulation of General Relativit…

Hierarchy or Heterarchy? A Theory of Long-Range Connections for the Sensorimotor Brain
Jeff Hawkins (Thousand Brains Project), Niels Leadholm (Thousand Brains Project), Viviane Clay (Thousand Brains Project)
https://arxiv.org/abs/2507.05888

Hierarchy or Heterarchy? A Theory of Long-Range Connections for the Sensorimotor Brain
In the traditional understanding of the neocortex, sensory information flows up a hierarchy of regions, with each level processing increasingly complex features. Information also flows down the hierarchy via a different set of connections. Although the hierarchical model has significant support, many anatomical connections do not conform to the standard hierarchical interpretation. In addition, hierarchically arranged regions sometimes respond in parallel, not sequentially as would occur in a h…

celegansneural: C. elegans neurons (1986)
A network representing the neural connections of the Caenorhabditis elegans nematode.
This network has 297 nodes and 2359 edges.
Tags: Biological, Connectome, Weighted
https://networks.skewed.de/net/celegansneural
Rid…

Learnable quantum spectral filters for hybrid graph neural networks
Ammar Daskin
https://arxiv.org/abs/2507.05640 https://arxiv.org/p…

Learnable quantum spectral filters for hybrid graph neural networks
In this paper, we describe a parameterized quantum circuit that can be considered as convolutional and pooling layers for graph neural networks. The circuit incorporates the parameterized quantum Fourier circuit where the qubit connections for the controlled gates derived from the Laplacian operator. Specifically, we show that the eigenspace of the Laplacian operator of a graph can be approximated by using QFT based circuit whose connections are determined from the adjacency matrix. For an $N\t…

'the observation by Marc Dunkelman that digital technology has not obliterated our social connections but rather warped them. Americans today are in constant contact with the inner ring of family and the outer ring of "tribe"—that is, people we follow online, often because we share something in common, such as a sports allegiance or a political ideology. But the middle ring of community has atrophied. We know our online avatars better than we know our neighbors; we interact wit…

The Death of Partying in the U.S.A.—and Why It Matters
Young Americans today spend 70 percent less time attending or hosting parties than they did at the beginning of the 21st century. Why?

Flat connections at infinity on knot surgery manifolds
Aditya Dwivedi, Archana Maji, Dmitry Noshchenko, Ramadevi Pichai
https://arxiv.org/abs/2509.05270 https://

Flat connections at infinity on knot surgery manifolds
$\rm SL(2,\mathbb{C})$ Chern-Simons theory on a closed 3-manifold is one of the most interesting, yet tractable examples of a QFT. On one hand, its non-perturbative structure is not yet fully understood; on the other, the mathematical structure turns out to be very rich. In this work we explore the new phenomenon of flat connections at infinity on various knot surgery manifolds. Such flat connections can be understood as asymptotic ends in the non-compact moduli space of flat $\rm SL(2,\mathbb{…

#Cortigent on their Orion brain implant: "Our goal is to help the profoundly blind regain visual perception" https://www.cortigent.com/orion Orion Visual Cortical Prosthesis System, based on Argus II retinal im…

from my link log —
The ITTAGE indirect branch predictor.
https://blog.nelhage.com/post/ittage-branch-predictor/
saved 2025-07-05

"I think the root of homelessness is greed... England has a population of 60 million people and about the same homeless population as San Francisco, which is a city of about 850,000 people."
Kevin's book is in my queue. May move it up. He's speaking at the Roxie on Sunday!

For longtime Chronicle homelessness reporter Kevin Fagan, the business was always personal
Learn about Kevin Fagan’s powerful stories of homelessness and recovery that come from connections made in a life-long reporting career.

“Justice Jackson has begun looking at patterns, and noticing what types of parties tend to win, and which tend to lose. She has noticed procedural discrepancies. She has begun looking at interests, motives, and connections. She’s begun to point behind the curtain at what ‘collegiality’ obscures.”
'What's up with Justice Jackson?': Billionaires said to be 'fearful' of jurist - Raw Story
https://www.rawstory.com/ketanji-brown-jackson-2673042186/

A malicious Jira ticket can cause Cursor to exfiltrate secrets from the repository or local file system. But this is not just a problem with Cursor: GitHub MCP connections can also be exploited to expose private repository data, and a vulnerability in GitLab Duo allowed private information to be exposed through automatically rendered HTML code.

AgentFlayer: When a Jira Ticket Can Steal Your Secrets
TL;DR: A 0click attack through a malicious Jira ticket can cause Cursor to exfiltrate secrets from the repository or local file system.

#Blakes7 Series D, Episode 04 - Stardrive
PLAXTON: What's the matter with your main drive?
TARRANT: It's a museum piece.
PLAXTON: Standard fiber optic control connections?
AVON: Very standard.
https://blake.t…

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

Play a special Dallas Cowboys version of Connections: Sports Edition https://www.nytimes.com/athletic/6606060/2025/09/06/cowboys-connections-sports-edition-nfl-game/

Are there any established easily electrical connectors that can be 3D printed cheaply (like, <0.10€ each)? I'm thinking of 0.3mm bare copper wire threaded through the parts and making contact with each other backed by plastic springs, but designing them from scratch would take many iterations.
Ideally, I'd like to make connections in up to 10 places, each with 4 pins, from a single FDM part, wire them to a single small PCB (3 bus pins plus one per place) for <1€ in parts.…

Disagree on the relative yellow/green difficulty in today’s #Connections, though the puzzle’s overall ranking surely is relative to each of the four groups’ fandom. But don’t tell @… about the blues.

Play a special Las Vegas Raiders version of Connections: Sports Edition https://www.nytimes.com/athletic/6606132/2025/09/06/raiders-connections-sports-edition-nfl-game/

For some reason a LOT of Microsoft-tagged (whois) IPs are **very** interested in the query "IN ANY fysh.org".
I'm seeing *thousands* of TCP connections to the name server at once, all for that same query.
I'm still going through the list of IPs from about 30 minutes ago, but so far whois is mostly saying "Microsoft", sometimes with a "cloud" tag. There's one bunch of Google in there too, but for all I know they're just because the MS…

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

“People who socialize more are more resistant to cognitive decline as they get older,”
Dr. Ben Rein said. And, he added, they “have generally larger brains.”
Researchers think that may be because socializing could help to protect against declines in brain volume that happen with age and isolation.
Loneliness, which is particularly common in older adults, can increase levels of the stress hormone cortisol,
and if cortisol is elevated for long periods of time it can lea…

How Do ‘Super-Agers’ Stay Young? What 25 Years of Research Has Revealed.
After 25 years of research on this notable group, here’s what stands out.

First KDE 6.4.4 feedback on FreeBSD:
All running pretty smoothly afaic. Memory usage a bit high, but my guess that's bcs of the startup of a linux jail (I'm playing with installing Brave, which I did). Possibly I let go of that and stick to Librewolf, installed from the repos already.
Networkmgr by the Ghostbsd team is a nifty tool to handle your connections, works great in KDE also.
Automount by @…

RSK and Quantum Symmetric Functions: A Combinatorial Approach
Eddy Pariguan, Jhoan Sierra V
https://arxiv.org/abs/2509.07912 https://arxiv.org/pdf/2509.079…

RSK and Quantum Symmetric Functions: A Combinatorial Approach
We explore an application of the Robinson-Schensted-Knuth (RSK) algorithm in the context of the quantum product of multi-symmetric functions. After reviewing the combinatorial foundations of quantum symmetric functions, we establish connections with transportation polytopes. Our approach highlights the combinatorial richness underlying the star product of symmetric functions.

Permutation Models Arising From Topological Ideals
Justin Young
https://arxiv.org/abs/2507.05371 https://arxiv.org/pdf/2507.05371

Permutation Models Arising From Topological Ideals
A recent paper by Zapletal arXiv:2404.10612 discusses permutation models of set theory which arise from dynamical ideals and highlights properties of the dynamical ideal which relate to fragments of choice in the permutation model. In this paper, we provide several examples from topology which illustrate using these connections to argue that the corresponding permutation model satisfies either the axiom of countable choice or well-ordered choice.

Connections between reinforcement learning with feedback,test-time scaling, and diffusion guidance: An anthology
Yuchen Jiao, Yuxin Chen, Gen Li
https://arxiv.org/abs/2509.04372

Connections between reinforcement learning with feedback,test-time scaling, and diffusion guidance: An anthology
In this note, we reflect on several fundamental connections among widely used post-training techniques. We clarify some intimate connections and equivalences between reinforcement learning with human feedback, reinforcement learning with internal feedback, and test-time scaling (particularly soft best-of-$N$ sampling), while also illuminating intrinsic links between diffusion guidance and test-time scaling. Additionally, we introduce a resampling approach for alignment and reward-directed diffu…

Quadratic units and cubic fields
Florian Breuer, James Punch
https://arxiv.org/abs/2507.06579 https://arxiv.org/pdf/2507.06579…

Quadratic units and cubic fields
We investigate Eisenstein discriminants, which are squarefree integers $d \equiv 5 \pmod{8}$ such that the fundamental unit $\varepsilon_d$ of the real quadratic field $K=\mathbb{Q}(\sqrt{d})$ satisfies $\varepsilon_d \equiv 1 \pmod{2\mathcal{O}_K}$. These discriminants are related to a classical question of Eisenstein and have connections to the class groups of orders in quadratic fields as well as to real cubic fields. We present numerical computations of Eisenstein discriminants up to $10^{1…

Beyond Diagonal IRS Aided OFDM: Rate Maximization under Frequency-Dependent Reflection
Ye Yuan, Shuowen Zhang
https://arxiv.org/abs/2509.06378 https://arxi…

Beyond Diagonal IRS Aided OFDM: Rate Maximization under Frequency-Dependent Reflection
This paper studies a broadband orthogonal frequency division multiplexing (OFDM) system aided by a beyond diagonal intelligent reflecting surface (BD-IRS), where inter-connections exist among different elements such that the reflection matrix can exhibit a beyond diagonal structure. Under practical circuit structures, the reflection matrix of the BD-IRS is generally dependent on the circuit parameters (e.g., capacitance matrix for all tunable capacitors) as well as the operating frequency, whic…

Lissajous Varieties
Francesco Maria Mascarin, Simon Telen
https://arxiv.org/abs/2509.06844 https://arxiv.org/pdf/2509.06844

Lissajous Varieties
This paper studies affine algebraic varieties parametrized by sine and cosine functions, generalizing algebraic Lissajous figures in the plane. We show that, up to a combinatorial factor, the degree of these varieties equals the volume of a polytope. We deduce defining equations from rank constraints on a matrix with polynomial entries. We discuss applications of Lissajous varieties in dynamical systems, in particular the Kuramoto model. This leads us to study connections with convex optimizati…

Memo: in H1 2025, Bloomberg Media revenue grew 7% YoY, cross-platform audience grew 6%, subscriptions revenue rose 8%, paying subscribers rose by ~100K to 660K (Chris Roush/Talking Biz News)
https://talkingbiznews.com/media-news/bloomberg-media-reve…

Bloomberg Media revenue up 7% in first half of 2025 - Talking Biz News
Bloomberg Media CEO Karen Saltser sent the following memo to Bloomberg Media employees: Team, We’re at a key inflection point in the fiscal year – a moment to recap Bloomberg Media’s growth and also focus on a strong finish. Every day, we deliver vital news, insights, context and connections to business and government decision makers; […]

Differential Geometry on Pointwise Affine Spaces
Dan Jonsson
https://arxiv.org/abs/2509.06748 https://arxiv.org/pdf/2509.06748

Differential Geometry on Pointwise Affine Spaces
We introduce an alternative formalization of curved spaces in which the concept of a pointwise affine space, as defined here, replaces that of a manifold. New or modified definitions of familiar notions from differential geometry such as connections, torsion, Riemann curvature, vector fields and differentiation of vector fields are presented, and examples of applications of the resulting framework are given. In general, the notions and results considered receive simpler and more transparent for…

Transformation from Bi-CG into Bi-CR using a residual smoothing-like scheme
Arisa Kawase, Kensuke Aihara
https://arxiv.org/abs/2509.05986 https://arxiv.org…

Transformation from Bi-CG into Bi-CR using a residual smoothing-like scheme
Residual smoothing techniques, which produce a smooth convergence behavior of linear iterative solvers, also form connections between different methods. For example, minimal residual smoothing can transform the residuals of the conjugate gradient (CG) method into those of the conjugate residual (CR) method for linear systems with symmetric matrices. In this study, we investigate whether a similar relationship can be constructed between the Bi-CG and Bi-CR methods for nonsymmetric linear systems…

The atomic gas properties of Green Pea galaxies: Connections to Lyman continuum leakage
Archishman Khasnovis (National Centre for Radio Astrophysics, India), Nissim Kanekar (National Centre for Radio Astrophysics, India), Sangeeta Malhotra (NASA Goddard Space Flight Center, USA), James Rhoads (NASA Goddard Space Flight Center, USA)
https://

The atomic gas properties of Green Pea galaxies: Connections to Lyman continuum leakage
We have used the Green Bank Telescope to search for H{\sc{i}} 21\,cm emission from 30 Green Pea galaxies (GPs) at $z\approx0.012-0.045$, obtaining 7 detections of H{\sc{i}} 21\,cm emission and 17 upper limits on the H{\sc{i}} mass. Including GPs from the literature, we obtain a sample of 60 GPs at $z<0.05$, with 19 detections and 41 non-detections of H{\sc{i}} 21\,cm emission, and with stellar masses in the range $10^6-10^9\,\rm{M_{\odot}}$. We use the line luminosity ratio O32~$\equiv$~[O{\sc …

The Steiner Shortest Path Tree Problem
Omer Asher, Yefim Dinitz, Shlomi Dolev, Li-on Raviv, Baruch Schieber
https://arxiv.org/abs/2509.06789 https://arxiv.…

The Steiner Shortest Path Tree Problem
We introduce and study a novel problem of computing a shortest path tree with a minimum number of non-terminals. It can be viewed as an (unweighted) Steiner Shortest Path Tree (SSPT) that spans a given set of terminal vertices by shortest paths from a given source while minimizing the number of nonterminal vertices included in the tree. This problem is motivated by applications where shortest-path connections from a source are essential, and where reducing the number of intermediate vertices he…

A proposal for the role of higher spin fields in Conformal Cyclic Cosmology
Anders K. H. Bengtsson
https://arxiv.org/abs/2507.06634 https://

A proposal for the role of higher spin fields in Conformal Cyclic Cosmology
This paper proposes a research program into how the special properties of the cubic chiral higher spin gravity theory may play a role in conformal cyclic cosmology and black hole physics, in particular for the black hole information paradox. The paper is qualitative, raising a number of questions and connections, that may be interesting to pursue in more detail. The proposal is based on a new -- at least not so commonly expressed -- view on the presumptive role of higher spin gauge fields in fu…

Multiple Timescale Dynamics of Network Adaptation with Constraints
Erik Andreas Martens, Christian Bick
https://arxiv.org/abs/2507.06359 https://

Multiple Timescale Dynamics of Network Adaptation with Constraints
Adaptive network dynamical systems describe the co-evolution of dynamical quantities on the nodes as well as dynamics of the network connections themselves. For dense networks of many nodes, the resulting dynamics are typically high-dimensional. Here we consider adaptive dynamical systems subject to constraints on network adaptation: Asymptotically, the adaptive dynamics of network connections evolve on a low-dimensional subset of possible connectivity. Such dimension reduction may be intrinsic…

The Tautochrone of Huygens and Abel: From Constructive Geometry to Fractional Calculus
Luiz Roberto Evangelista, Francesco Mainardi
https://arxiv.org/abs/2509.05308 https://

The Tautochrone of Huygens and Abel: From Constructive Geometry to Fractional Calculus
In this paper, we explore the connections between Christiaan Huygens and Niels Henrik Abel through the tautochrone problem. The problem -- determining the curve along which a particle descends under gravity in the same time, regardless of its starting point -- has been a central topic at the intersection of physics, geometry, and analysis. Though these two major figures are separated by nearly two centuries, they approached the problem in radically different ways. While Huygens proposed a physi…

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

Spectral Methods in Complex Systems
Francesco Caravelli
https://arxiv.org/abs/2509.05793 https://arxiv.org/pdf/2509.05793

Spectral Methods in Complex Systems
These notes offer a unified introduction to spectral methods for the study of complex systems. They are intended as an operative manual rather than a theorem-proof textbook: the emphasis is on tools, identities, and perspectives that can be readily applied across disciplines. Beginning with a compendium of matrix identities and inversion techniques, the text develops the connections between spectra, dynamics, and structure in finite-dimensional systems. Applications range from dynamical stabili…

On the connections between $F$-contractions and Meir-Keeler contractions
Laura Manolescu, Pasc Gavruta
https://arxiv.org/abs/2507.03606 https://

On the connections between $F$-contractions and Meir-Keeler contractions
In this paper, we resolve an open problem concerning the connection between $F$-contractions (Wardowski contractions) and Meir-Keeler contractions. We prove that for a nondecreasing function $F$ that has a point of discontinuity on the right, there exists an $F-$contraction that is not a Meir-Keeler contraction. Moreover, we give a condition on nonlinear $(φ,F)$-contractions to be Meir-Keeler contractions. In the final part of the paper, we give a class of $(E,F)-$contractions (in the sense of…

Presentations for semigroups of full-domain partitions
Luka Carroll, James East, Matthias Fresacher
https://arxiv.org/abs/2507.05497 https://

Presentations for semigroups of full-domain partitions
The full-domain partition monoid $P_n^{fd}$ has been discovered independently in two recent studies on connections between diagram monoids and category theory. It is a right restriction Ehresmann monoid, and contains both the full transformation monoid and the join semilattice of equivalence relations. In this paper we give presentations (by generators and relations) for $P_n^{fd}$, its singular ideal, and its planar submonoid. The latter is not an Ehresmann submonoid, but it is a so-called grr…

How Palantir won over US lawmakers, leveraging geopolitical crises, technological trends, and DC connections, as CEO Alex Karp adopts a persona not unlike Trump (Wall Street Journal)
https://www.wsj.com/tech/palantir-pltr-sto

Scanned SQUID Microscope with High-speed Electrical Connectivity
Ian W. Haygood, Bochao Xu, John Biesecker, Michael L. Schneider
https://arxiv.org/abs/2509.07137 https://…

Scanned SQUID Microscope with High-speed Electrical Connectivity
We report on a scanned superconducting quantum interference device (SQUID) microscope operating in a cryogen-free cryostat, with the capability of up to forty RF connections with 20 GHz bandwidth to a device under test. The system utilizes planar gradiometric DC SQUIDs, which are fully shielded except for a pair of pickup coils with radii as small as 250 nm and have on chip field coils allowing for susceptometry. The system noise is 1.3 $μΦ_{0}/\sqrt{Hz}$ at the base temperature of 3.3 K. The…

What if the railways could promote stability rather than disrupting society? (🇩🇪:🤯)
The Swiss railways explore using batteries on trains to smoothen a.o. peaks related to coordinated train schedules, which facilitate easy and reliable connections at many stations around the clock (🇫🇷:🤯)
https://www.

What if the railways could promote stability rather than disrupting society? | Jaap Burger
What if the railways could promote stability rather than disrupting society? (The German mind cannot comprehend this). The Swiss railways are exploring ways to use batteries on maintenance trains that can operate independently of overhead wires and combine them as an aggregated fleet with smart energy management. This system would ensure that the batteries are charged in time for the next task, reduce battery ageing by avoiding long periods of low or high charge, and could be used to reduce po…

All #Connections are equal, but some connections are more equal than others.
#Connections817
🟪🟪🟪🟪
🟦🟦🟦🟦
🟩🟩🟩🟩
🟨🟨🟨🟨

Test your NFL knowledge with our Connections: Sports Edition team-themed games https://www.nytimes.com/athletic/6592714/2025/09/03/connections-sports-edition-nfl-team-games/

Okay, figured out how I'm routing the palette select connections along with 5V power: the Player 1 connector. Pins 1 and 5 get me GND and 5V, and the Clock/Data/Latch signals come out of pins 2/3/4 respectively. This saves me running another set of cables directly from the power board.
#nes #nesissity

Need to connect two devices? Try a dumb pipe
https://www.dumbpipe.dev/

Crosslisted article(s) found for math.AT. https://arxiv.org/list/math.AT/new
[1/1]:
- Flat connections at infinity on knot surgery manifolds
Aditya Dwivedi, Archana Maji, Dmitry Noshchenko, Ramadevi Pichai

A Twisted sl_2(C) Isomonodromic-Isospectral Correspondence
Mohamad Alameddine
https://arxiv.org/abs/2507.06668 https://arxiv.org/pdf/…

A Twisted sl_2(C) Isomonodromic-Isospectral Correspondence
The aim of this article is to generalize the isomonodromic-isospectral correspondence for meromorphic connections of rank $2$ over $\mathbb{P}^1$ to the twisted case. More specifically, the construction of the isospectral approach is provided for the Painlevé I hierarchy, then two maps are constructed, one linking the sets of isomonodromic and isospectral Hamiltonians, another linking the set of apparent singularities to a set of isospectral coordinates.

The dimension of well approximable numbers
Victor Beresnevich, Sanju Velani
https://arxiv.org/abs/2509.05687 https://arxiv.org/pdf/2509.05687

The dimension of well approximable numbers
In this survey article, we explore a central theme in Diophantine approximation inspired by a celebrated result of Besicovitch on the Hausdorff dimension of well approximable real numbers. We outline some of the key developments stemming from Besicovitch's result, with a focus on the Mass Transference Principle, Ubiquity and Diophantine approximation on manifolds and fractals. We highlight the subtle yet profound connections between number theory and fractal geometry, and discuss several open p…

“A returns deal with France that makes access to safety in the UK — even for those with close family or connections here — dependent on someone else risking their life to cross the Channel only cements the role of smugglers in how people fleeing war and persecution must seek asylum in the UK."
'A grubby trade in human lives' | Morning Star
…

Bonded braids and the Markov theorem
Paolo Cavicchioli, Bo\v{s}tjan Gabrov\v{s}ek, Matic Simoni\v{c}
https://arxiv.org/abs/2507.04565 https://

Bonded braids and the Markov theorem
Bonded knots arise naturally in topological protein modeling, where intramolecular interactions such as disulfide bridges stabilize folded configurations. These structures extend classical knot theory by incorporating embedded graphs, and have been formalized as bonded knots. In this paper, we develop the algebraic theory of bonded braids, introducing the bonded braid monoid in the topological and rigid settings, which encodes both classical braid crossings and (rigid) bonded connections. We pr…

«I believe that the web, like Nokia, was created to connect people. Some create things, some watch or read those, and connections are formed. LLMs […] destroy the human element of the web, and of the real world too, because those are too interconnected now. […] By using LLMs in a collaborative context, you cheat: you introduce errors and invite everybody to find them»
A really lovely interview with @… ! Come for the map talk, stay for the community insight
https://www.apc.org/en/news/every-door-going-map-user-open-source-map-creator

Shear viscosity to entropy density ratio: A powerful tool for gravity theories and strongly coupled fluids
Maril\`u Chiofalo, Dario Grasso, Stefano Liberati, Massimo Mannarelli
https://arxiv.org/abs/2509.06178

Shear viscosity to entropy density ratio: A powerful tool for gravity theories and strongly coupled fluids
In this perspective review, we present a concise yet multifaceted overview of the pivotal role played by the the shear viscosity to entropy density ratio across various physical contexts. After summarizing some of the main aspects of the bound obtained by Kovtun, Son and Starinets, we examine potential sources of its violation, exploring the insights these may offer and their connections to fundamental causality conditions. We also review a range of experimental tests conducted in diverse, yet …

Where Have All the Firewalls Gone? Security Consequences of Residential IPv6 Transition
Erik Rye, Dave Levin, Robert Beverly
https://arxiv.org/abs/2509.04792 https://

Where Have All the Firewalls Gone? Security Consequences of Residential IPv6 Transition
IPv4 NAT has limited the spread of IoT botnets considerably by default-denying bots' incoming connection requests to in-home devices unless the owner has explicitly allowed them. As the Internet transitions to majority IPv6, however, residential connections no longer require the use of NAT. This paper therefore asks: has the transition from IPv4 to IPv6 ultimately made residential networks more vulnerable to attack, thereby empowering the next generation of IPv6-based IoT botnets? To answer thi…

A Riemannian viewpoint on the Amari-Cencov $\alpha$-connections and Proudman-Johnson equations
Martin Bauer, Alice Le Brigant, Cy Maor
https://arxiv.org/abs/2508.00371 https://

A Riemannian viewpoint on the Amari-Cencov $α$-connections and Proudman-Johnson equations
We give a new geometric interpretation of the Amari-Cencov $α$-connections $\nabla^{(α)}$ from information geometry: On the space of densities $\operatorname{Dens}_+(M)$, we show that there exist Riemannian metrics $G^α$, which we call $α$-Fisher-Rao metrics, whose Levi-Civita connections are $\nabla^{(α)}$. With the exception of $α=0$ (the Fisher-Rao metric), these metrics are non-invariant to the action of the diffeomorphism group $\operatorname{Diff}(M)$, even though the connections ar…

Cyclic $\mathcal{U}_\xi(\mathfrak{sl}_2)$-modules and invariants of knots with flat $\mathfrak{sl}_2$ connections in the complement
Calvin McPhail-Snyder, Nicolai Reshetikhin
https://arxiv.org/abs/2509.02354

Cyclic $\mathcal{U}_ξ(\mathfrak{sl}_2)$-modules and invariants of knots with flat $\mathfrak{sl}_2$ connections in the complement
The main result of this paper is the factorization of the holonomy $R$-matrix for quantum $\mathfrak{sl}_2$ at a root of unity into a product of four quantum holonomy dilogarithms. This factorization extends previously known results in this direction. We collect many existing results needed for the factorization. We use the holonomy $R$-matrices to define representations of a groupoid of braids with flat $\mathfrak{sl}_{2}$ connections, which also define invariants of knots with such connection…

Boundary contacts for reflected random walks in the quarter plane
Viet Hung Hoang, Kilian Raschel
https://arxiv.org/abs/2507.04745 https://

Boundary contacts for reflected random walks in the quarter plane
We investigate reflected random walks in the quarter plane, with particular emphasis on the time spent along the reflection boundary axes. Assuming the drift of the random walk lies within the cone, the local time converges -- without the need for normalization -- to a limiting random variable as the walk length tends to infinity. This paper focuses on the properties of these discrete limiting variables. The problem is rooted in probability theory but also has natural connections to statistical…

German-English connections: "anecken" and "to egg on." These words don't mean exactly the same thing, but they are related. Etymologically, they seem closely related. English is a Germanic language. And phrasal verbs offer up interesting connections.
#language #linguistics

Block entanglement bounds distribution of regionally localized entanglement
Jithin G. Krishnan, Aditi Sen De, Amit Kumar Pal
https://arxiv.org/abs/2508.05431 https://

Block entanglement bounds distribution of regionally localized entanglement
In quantum networks, eliminating connections between nodes is crucial to mitigate the effects of decoherence, often achieved by performing measurements on nodes that are idle, or vulnerable to noise. To characterize the entanglement content of the resulting smaller network, we introduce the notion of ``regionally localized entanglement", defined as the average entanglement concentrated over a two-qubit region in a multi-qubit system. Hence, the total regionally localized entanglement can be obt…

Polynomial stability conditions for vector bundles: Positivity, equivariance and blow-ups
R\'emi Delloque, Achim Napame, Carlo Scarpa, Carl Tipler
https://arxiv.org/abs/2506.23842

Polynomial stability conditions for vector bundles: Positivity, equivariance and blow-ups
We introduce the notion of P-critical connections for hermitian holomorphic vector bundles over compact balanced manifolds: integrable hermitian connections whose curvature solves a polynomial equation. Such connections include HYM and dHYM connections, as well as solutions to higher rank Monge-Ampère or J-equations, and are a slight generalisation of Dervan-McCarthy-Sektnan's Z-critical connections motivated by Bayer's polynomial Bridgeland stability conditions. The associated equations come …

Roblox partners with Persona to estimate user ages and verify they are 13 , renames Friends to Connections, and says 13 users can message Trusted Connections (Jay Peters/The Verge)
https://www.theverge.com/news/708670/roblox-trusted-connections-age-est…

Roblox will require a facial scan or government ID to have unfiltered chats
Roblox will let people make “Trusted Connections” to chat more freely, but will require that they use a new age estimation tool to verify that they’re over 13.

Linear Recurrences from Counting Schreier-Type Multisets
Hung Viet Chu, Yubo Geng, Julian King, Steven J. Miller, Garrett Tresch, Zachary Louis Vasseur
https://arxiv.org/abs/2509.05158

Linear Recurrences from Counting Schreier-Type Multisets
A nonempty set $F$ is Schreier if $\min F\ge |F|$. Bird observed that counting Schreier sets in a certain way produces the Fibonacci sequence. Since then, various connections between variants of Schreier sets and well-known sequences have been discovered. Building on these works, we prove a linear recurrence for the sequence that counts multisets $F$ with $\min F\ge p|F|$. In particular, if we let $$\mathcal{A}^{(s)}_{p, n}\ :=\ \{F\subset \{\underbrace{1, \ldots, 1}_{s}, \l…

Oregon, Oregon Health Plan (OHP)
Pennsylvania, Medical Assistance
Rhode Island, RI Medical Assistance Program
South Carolina, Healthy Connections
South Dakota, Medicaid
Tennessee, TennCare
Texas, STAR PLUS
Utah, Medicaid
Vermont, Green Mountain Care
Virginia, Cardinal Care
Washington, Apple Health
West Virginia, Medicaid
Wisconsin, Forward Health, BadgerCare
Wyoming, Equality Care

Decomposition of the connection in affine models of gravity: Can the connection tell us something about the metric?
Oscar Castillo-Felisola, Bastian Grez, Aureliano Skirzewski, Jefferson Vaca-Santana
https://arxiv.org/abs/2509.03659

Decomposition of the connection in affine models of gravity: Can the connection tell us something about the metric?
In physics geometrical connections are the mean to create models with local symmetries (gauge connections), as well as general diffeomorphisms invariance (affine connections). Here we study the irreducible tensor decomposition of connections on the tangent bundle of an affine manifold as used in the polynomial affine model of gravity. This connection is the most general linear connection, which allows us to build metric independent, diffeomorphism invariant models. This set up includes parts of…

Cosmic-Quantum Connections: Assessing the Viability of Weak Gravity and Weak Cosmic Censorship Conjectures in Kerr-Newman-Kiselev-Letelier Black Hole
Saeed Noori Gashti, Behnam Pourhassan
https://arxiv.org/abs/2508.01487

Cosmic-Quantum Connections: Assessing the Viability of Weak Gravity and Weak Cosmic Censorship Conjectures in Kerr-Newman-Kiselev-Letelier Black Hole
This paper addresses a potential validation of the weak gravity conjecture (WGC) with the weak cosmic censorship conjecture (WCCC), as a significant challenge in quantum gravity. We explore the viability of the WGC and WCCC in the context of the Kerr-Newman-Kiselev-Letelier (KNKL) black hole. Although these conjectures appear unrelated, but surprising connection between these conjectures, It establishes a bridge between the quantum and the cosmic. By imposing specific constraints on the black h…

google_plus: Google (2013)
Snapshot of connections among users of Google , collected in 2012. Nodes are users and a directed edge (i,j) represents user i added user j to i's circle.
This network has 211187 nodes and 1506896 edges.
Tags: Social, Online, Unweighted
https://networks.skewed.de/net/google_

Barvinok's interpolation method meets Weitz's correlation decay approach
Ferenc Bencs, Guus Regts
https://arxiv.org/abs/2507.03135 https://

Barvinok's interpolation method meets Weitz's correlation decay approach
In this paper we take inspiration from Weit'z algorithm for approximating the independence polynomial to provide a new algorithm for computing the coefficients of the Taylor series of the logarithm of the independence polynomial. Hereby we provide a clear connections between Barvinok's interpolation method and Weitz's algorithm. Our algorithm easily extends to other graph polynomials and partition functions and we illustrate this by applying it to the chromatic polynomial and to the graph homom…

Effective normalization of sub-Riemannian connections
Erlend Grong, Jan Slovak
https://arxiv.org/abs/2508.00108 https://arxiv.org/pdf/2508.00108

Effective normalization of sub-Riemannian connections
We give a new normalization condition for connections on sub-Riemannian manifolds with constant symbols. The condition is formulated in terms of Cartan connections and depends only on the first degree of homogeneity of the curvature. The essential part of our result is to show how a Cartan connection can be uniquely determined by a partial connection on the horizontal bundle. Viewed from the manifold, this observation is equivalent to the following claim: a compatible partial affine connection …

Material-Driven Optimization of Transmon Qubits for Scalable and Efficient Quantum Architectures
Jonnalagadda Gayatri, S. Saravana Veni
https://arxiv.org/abs/2508.05339 https://…

Material-Driven Optimization of Transmon Qubits for Scalable and Efficient Quantum Architectures
One of the most crucial steps in creating practical quantum computers is designing scalable and efficient superconducting qubits. Coherence times, connections between individual qubits, and reduction of environmental noise are critical factors in the success of these qubits. Because they can be lithographically fabricated and are less sensitive to charge noise, superconducting qubits, especially those based on the Transmon architecture, have emerged as top contenders for scalable platforms. In …

Understanding the bionic eye and retinal prostheses: Zoom meeting Wednesday, September 10, 2025 https://www.fightingblindness.ca/viewpoint/#innovative-treatments with Daniel Palanker, retinal implant.

View Point - Fighting Blindness Canada (FBC)
Jump to: Understanding the Bionic Eye and Retinal Prostheses| AMD Coffee Connections Ottawa| AMD Coffee Connections North York | View Point Toronto: Speaker Symposium | IRD Spotlight: Syndromic IRDs (Usher and BBS)...

Higher path groupoids and the holonomy of formal power series connections
Matthew Cellot
https://arxiv.org/abs/2506.23880 https://arx…

Higher path groupoids and the holonomy of formal power series connections
Building on ideas of Kohno, we develop a framework for the construction of higher holonomy functors via the transport of formal power series connections. Using these techniques, we obtain functors from the path groupoid, the path 2-groupoid, and the path 3-groupoid of a manifold. As an application, we construct a Gray functor from the path 3-groupoid of the configuration space of $m$ points in $\mathbb{R}^n$ for $n\geqslant 4$.

Factorization of Basic Hypergeometric Series
Jonathan G. Bradley-Thrush
https://arxiv.org/abs/2507.04313 https://arxiv.org/pdf/2507.0…

Factorization of Basic Hypergeometric Series
The general problem of the factorization of a basic hypergeometric series is presented and discussed. The case of the general $_2ψ_2$ series is examined in detail. Connections are found with the theory of basic hypergeometric series on root systems. Alternative proofs of several well-known summation and transformation formulae, including Gustafson's generalization of Ramanujan's $_1ψ_1$ summation, are obtained incidentally.

marker_cafe: The Marker Cafe (2011)
Snapshot of connections among users of the Israeli social network Marker Cafe, collected in 2011. Nodes are users and a directed edge (i,j) represents user i added user j to i's circle.
This network has 69413 nodes and 1644849 edges.
Tags: Social, Online, Unweighted
https://

One-weight codes in the sum-rank metric
Usman Mushrraf, Ferdinando Zullo
https://arxiv.org/abs/2508.04262 https://arxiv.org/pdf/2508.04262

One-weight codes in the sum-rank metric
One-weight codes, in which all nonzero codewords share the same weight, form a highly structured class of linear codes with deep connections to finite geometry. While their classification is well understood in the Hamming and rank metrics - being equivalent to (direct sums of) simplex codes - the sum-rank metric presents a far more intricate landscape. In this work, we explore the geometry of one-weight sum-rank metric codes, focusing on three distinct classes. First, we introduce and classify …

Crosslisted article(s) found for math-ph. https://arxiv.org/list/math-ph/new
[2/2]:
- Flat connections at infinity on knot surgery manifolds
Aditya Dwivedi, Archana Maji, Dmitry Noshchenko, Ramadevi Pichai

Got the modded PS1 (SCPH-5501) connected to the PVM via a gwscart switch using RGB (CSYNC). The switch doesn't seem to have any issues with the signal coming in from the PS1, and the Retro Gaming Cables cable (EuroSCART -> RGB Sync Audio) is absolute quality. If it weren't for Silksong at the moment, I'd be jumping into some retro games.
#retrogaming

On the dynamics of a semigroup and its relation with the Riemann Hypothesis
Carlos F. \'Alvarez, Juan Manzur
https://arxiv.org/abs/2507.03625 https://

On the dynamics of a semigroup and its relation with the Riemann Hypothesis
The semigroup of weighted composition operators $(W_n)_{n\in \mathbb{N}}$, defined by $$W_nf(z)=(1+z+\cdots +z^n)f(z^n),$$ acts on the classical Hardy-Hilbert space $H^{2}(\mathbb{D})$, and exhibits intriguing connections with both the Riemann Hypothesis (RH) and the Invariant Subspace Problem (ISP). In this paper, we prove that the adjoint operators $W^{\ast}_{n}$, for $n\geq 2$, are Devaney chaotic, frequently hypercyclic and mixing. In particular, these operators are hypercyclic and discuss …

#Connections, stop trying to make purple happen. It’s not going to happen.
#Connections752
🟦🟦🟦🟦
🟩🟩🟩🟩
🟨🟨🟨🟨
🟪🟪🟪🟪

Cohomologically calibrated affine connections and the Einstein condition on $S^2 \times T^2$
Alexander Pigazzini, Magdalena Toda
https://arxiv.org/abs/2508.02353 https://…

Cohomologically calibrated affine connections and the Einstein condition on $S^2 \times T^2$
This paper applies the recently developed framework of cohomologically calibrated affine connections to the fundamental problem of constructing non-Riemannian Einstein manifolds. In this framework, the torsion of a connection is intrinsically related to the global topology of the manifold, represented by the de Rham cohomology class specified by a set of real parameters. We focus on the product manifold $S^2 \times T^2$, whose third cohomology group is $H^3(S^2 \times T^2; \mathbb{R}) \cong \ma…

november17: November17 members (2009)
A network representing connections among members of the November 17 (N17) Greek terrorist group. Nodes are members, and an edge exists if two members have some connection in the past. Metadata include role, function, resources. Some attributes are missing.
This network has 22 nodes and 66 edges.
Tags: Social, Offline, Unweighted, Metadata

Color Distance Oracles and Snippets: Separation Between Exact and Approximate Solutions
Noam Horowicz, Tsvi Kopelowitz
https://arxiv.org/abs/2507.04578 htt…

Color Distance Oracles and Snippets: Separation Between Exact and Approximate Solutions
In the snippets problem, the goal is to preprocess text $T$ so that given two patterns $P_1$ and $P_2$, one can locate the occurrences of the two patterns in $T$ that are closest to each other, or report their distance. Kopelowitz and Krauthgamer [CPM2016] showed upper bound tradeoffs and conditional lower bounds tradeoffs for the snippets problem, by utilizing connections between the snippets problem and the problem of constructing a color distance oracle (CDO), which is a data structure that …

celegansneural: C. elegans neurons (1986)
A network representing the neural connections of the Caenorhabditis elegans nematode.
This network has 297 nodes and 2359 edges.
Tags: Biological, Connectome, Weighted
https://networks.skewed.de/net/celegansneural
Rid…

On the Kaluza-Klein geometric theory in affine spaces
Oscar Castillo-Felisola, Aureliano Skirzewski, Jefferson Vaca-Santana
https://arxiv.org/abs/2508.04817 https://

On the Kaluza-Klein geometric theory in affine spaces
In this work, we develop a generalization of Kaluza-Klein theory by considering a purely affine framework, without assuming a prior metric structure. We formulate the dimensional reduction using the geometry of principal fiber bundles and the Ehresmann connection, introducing adapted bases that allow an explicit decomposition of tensors, vectors, and connections. This formalism provides a natural geometric definition of the electromagnetic field as the difference between the horizontal space an…

An in-depth look at the rise of relationships between humans and AI companion chatbots on apps like Nomi, coinciding with a loneliness epidemic in the US (Salvador Rodriguez/CNBC)
https://www.cnbc.com/2025/08/01/human-ai-relationships-love-nomi.html

'What am I falling in love with?' Human-AI relationships are no longer just science fiction
Since ChatGPT’s late 2022 launch, everyday people have formed emotional connections to chatbots, describing them as deep friendships and even life partnerships.

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

New formulas for Macdonald polynomials via the multispecies exclusion and zero range processes
Olya Mandelshtam
https://arxiv.org/abs/2508.04666 https://ar…

New formulas for Macdonald polynomials via the multispecies exclusion and zero range processes
We describe some recently discovered connections between one-dimensional interacting particle models and Macdonald polynomials. The first such model is the multispecies asymmetric simple exclusion process (ASEP) on a ring, linked to the symmetric Macdonald polynomial $P_λ(X;q,t)$ through its partition function. Through this connection, a new formula was found for $P_λ$ by generalizing multiline queues, which were introduced by Martin in 2018 to compute stationary probabilities of the ASEP. Th…

gnutella: Gnutella p2p networks (2002)
A sequence of 9 snapshots of the Gnutella peer-to-peer file sharing network from 5-31 August 2002. Nodes are hosts in the Gnutella network topology and edges are connections between them.
This network has 6301 nodes and 20777 edges.
Tags: Technological, Peer-to-peer, Unweighted
https://

celegansneural: C. elegans neurons (1986)
A network representing the neural connections of the Caenorhabditis elegans nematode.
This network has 297 nodes and 2359 edges.
Tags: Biological, Connectome, Weighted
https://networks.skewed.de/net/celegansneural
Rid…

celegansneural: C. elegans neurons (1986)
A network representing the neural connections of the Caenorhabditis elegans nematode.
This network has 297 nodes and 2359 edges.
Tags: Biological, Connectome, Weighted
https://networks.skewed.de/net/celegansneural
Rid…

google_plus: Google (2013)
Snapshot of connections among users of Google , collected in 2012. Nodes are users and a directed edge (i,j) represents user i added user j to i's circle.
This network has 211187 nodes and 1506896 edges.
Tags: Social, Online, Unweighted
https://networks.skewed.de/net/google_

celegansneural: C. elegans neurons (1986)
A network representing the neural connections of the Caenorhabditis elegans nematode.
This network has 297 nodes and 2359 edges.
Tags: Biological, Connectome, Weighted
https://networks.skewed.de/net/celegansneural
Rid…

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

google_plus: Google (2013)
Snapshot of connections among users of Google , collected in 2012. Nodes are users and a directed edge (i,j) represents user i added user j to i's circle.
This network has 211187 nodes and 1506896 edges.
Tags: Social, Online, Unweighted
https://networks.skewed.de/net/google_

marker_cafe: The Marker Cafe (2011)
Snapshot of connections among users of the Israeli social network Marker Cafe, collected in 2011. Nodes are users and a directed edge (i,j) represents user i added user j to i's circle.
This network has 69413 nodes and 1644849 edges.
Tags: Social, Online, Unweighted
https://

celegansneural: C. elegans neurons (1986)
A network representing the neural connections of the Caenorhabditis elegans nematode.
This network has 297 nodes and 2359 edges.
Tags: Biological, Connectome, Weighted
https://networks.skewed.de/net/celegansneural
Rid…

hiv_transmission: HIV transmission network (1988-2001)
A set of networks of HIV transmissions between people through sexual, needle-sharing, or social connections, based on combining 8 datasets collected from 1988 to 2001. Metadata includes test results of several diseases, as well as demographic variables such as age, ethnicity, and gender. Networks come in two flavors: egodyads and altdyads. Egodyads are the network among study-participants and their direct partners. Altdyads are the…

fly_hemibrain: Fly hemibrain (2020)
A synaptic map of the hemibrain connectome of fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using EM reconstruction techniques. Neurons are labeled by their type. Edges are annotated by the connection strength between the neurons.
This network has 21739 nodes and 4259624 edges.
Tags: Biological, Connectome, Weighted, Metadata

marker_cafe: The Marker Cafe (2011)
Snapshot of connections among users of the Israeli social network Marker Cafe, collected in 2011. Nodes are users and a directed edge (i,j) represents user i added user j to i's circle.
This network has 69413 nodes and 1644849 edges.
Tags: Social, Online, Unweighted
https://

google_plus: Google (2013)
Snapshot of connections among users of Google , collected in 2012. Nodes are users and a directed edge (i,j) represents user i added user j to i's circle.
This network has 211187 nodes and 1506896 edges.
Tags: Social, Online, Unweighted
https://networks.skewed.de/net/google_

gnutella: Gnutella p2p networks (2002)
A sequence of 9 snapshots of the Gnutella peer-to-peer file sharing network from 5-31 August 2002. Nodes are hosts in the Gnutella network topology and edges are connections between them.
This network has 8114 nodes and 26013 edges.
Tags: Technological, Peer-to-peer, Unweighted
https://