Tootfinder

sp_infectious: Art exhibit dynamic contacts (2011)
This dataset contains the daily dynamic contact networks collected during the Infectious SocioPatterns event that took place at the Science Gallery in Dublin, Ireland, during the artscience exhibition INFECTIOUS: STAY AWAY. Each file in the downloadable package contains a tab-separated list representing the active contacts during 20-second intervals of one day of data collection. Each line has the form “t i j“, where i and j are the a…

sp_infectious: Art exhibit dynamic contacts (2011)
This dataset contains the daily dynamic contact networks collected during the Infectious SocioPatterns event that took place at the Science Gallery in Dublin, Ireland, during the artscience exhibition INFECTIOUS: STAY AWAY. Each file in the downloadable package contains a tab-separated list representing the active contacts during 20-second intervals of one day of data collection. Each line has the form “t i j“, where i and j are the a…

{purrr} has some lesser known functions that make handling of failing function calls easier: safely, quietly, possibly: #rstats…

Wrap a function to capture errors — safely
Creates a modified version of .f that always succeeds. It returns a list with components result and error. If the function succeeds, result contains the returned value and error is NULL. If an error occurred, error is an error object and result is either NULL or otherwise.

I know it is well-meaning, but extrapolating the total size of 2000 events from 320 reports is bogus unless one models the size distribution and how that influences whether an event has a report. I.e. big events get reported, smaller ones not so much.
Even with that, it would be very much open to debate.

Mr. Abrego Garcia, speaking through an interpreter, has entered "not guilty" pleas to the two charges
@tennesseelookout.com
https://bsky.app/profile/anitawadhwani.bsky.social/post/3lripyl3g5s2q

The Induced Saturation Number for $\mathcal{V}_3$ is Linear
James Brownlie, Sean Jaffe
https://arxiv.org/abs/2507.08353 https://arxiv…

The Induced Saturation Number for $\mathcal{V}_3$ is Linear
Given a poset $\mathcal{P}$, a family $\mathcal{F}$ of elements in the Boolean lattice is said to be $\mathcal{P}$-saturated if $\mathcal{F}$ does not contain an induced copy $\mathcal P$, but every proper superset of $\mathcal{F}$ contains one. The minimum size of a $\mathcal P$-saturated family in the $n$-dimensional Boolean lattice is denoted by $sat^*(n,\mathcal{P})$. In this paper, we consider the poset $\mathcal V_3$ (the four element poset with one minimal element and three incomparable …

lastfm_aminer: Last.fm social graph
This network contains the social graph of last.fm, a site that provides a streaming radio service, where users can search music and get personalized recommendation. A directed edge (i,j) means that user i follows user j.
This network has 136409 nodes and 1685524 edges.
Tags: Social, Online, Unweighted

Schramm-Loewner evolution contains a topological Sierpi\'nski carpet when $\kappa$ is close to 8
Haoyu Liu, Zijie Zhuang
https://arxiv.org/abs/2506.09609

Schramm-Loewner evolution contains a topological Sierpiński carpet when $κ$ is close to 8
We consider the Schramm-Loewner evolution (SLE$_κ$) for $κ\in (4,8)$, which is the regime where the curve is self-intersecting but not space-filling. We show that there exists $δ_0>0$ such that for $κ\in (8 - δ_0,8)$, the range of an SLE$_κ$ curve almost surely contains a topological Sierpiński carpet. Combined with a result of Ntalampekos (2021), this implies that in this parameter range, SLE$_κ$ is almost surely conformally non-removable, and the conformal welding problem for SLE$_κ$…

holy shit, the STM32 reference manual contains information presented so much better than ADIv5.2

Flipped through an issue of Monocle for the first time in a while. Sad that it no longer contains "Kita Koga", the manga about a japanese shinobi who is also a scandinavian architect.

Distinct Lifetimes for $X$ and $Z$ Loop Measurements in a Majorana Tetron Device
Morteza Aghaee, Zulfi Alam, Rikke Andersen, Mariusz Andrzejczuk, Andrey Antipov, Mikhail Astafev, Lukas Avilovas, Ahmad Azizimanesh, Bela Bauer, Jonathan Becker, Umesh Kumar Bhaskar, Andrea G. Boa, Srini Boddapati, Nichlaus Bohac, Jouri D. S. Bommer, Jan Borovsky, L\'eo Bourdet, Samuel Boutin, Lucas Casparis, Srivatsa Chakravarthi, Hamidreza Chalabi, Benjamin J. Chapman, Nikolaos Chatzaras, Tzu-Chiao C…

Distinct Lifetimes for $X$ and $Z$ Loop Measurements in a Majorana Tetron Device
We present a hardware realization and measurements of a tetron qubit device in a superconductor-semiconductor heterostructure. The device architecture contains two parallel superconducting nanowires, which support four Majorana zero modes (MZMs) when tuned into the topological phase, and a trivial superconducting backbone. Two distinct readout interferometers are formed by connecting the superconducting structure to a series of quantum dots. We perform single-shot interferometric measurements o…

livejournal_aminer: Livejournal social graph
This network contains the social graph of Livejournal, a free on-line social network where users can keep a blog, journal or diary, where a directed edge (i,j) means that user i follows user j.
This network has 3017286 nodes and 87037567 edges.
Tags: Social, Online, Unweighted
https://…

Spatial and Temporal Evaluations of the Liquid Argon Purity in ProtoDUNE-SP
DUNE Collaboration, et al.
https://arxiv.org/abs/2507.08586 https://

Spatial and Temporal Evaluations of the Liquid Argon Purity in ProtoDUNE-SP
Liquid argon time projection chambers (LArTPCs) rely on highly pure argon to ensure that ionization electrons produced by charged particles reach readout arrays. ProtoDUNE Single-Phase (ProtoDUNE-SP) was an approximately 700-ton liquid argon detector intended to prototype the Deep Underground Neutrino Experiment (DUNE) Far Detector Horizontal Drift module. It contains two drift volumes bisected by the cathode plane assembly, which is biased to create an almost uniform electric field in both vol…

Biden offered Kerr county $10M to help them build flood protection. The people rejected it cuz he is a Democrat. https://fed.brid.gy/r/https://bsky.app/profile/did:plc:xvr6x3yam5mq4a6q2suxbt5u/post/3ltrmyrqdjn2e

https://bsky.app/profile/scottohara.me/post/3lrbkvowass2q
Mine are also linked:
https://

Ah yes, the "balancing act" of LAPD shooting unarmed lone women at point blank range with rubber bullets for attempting to access their homes. Who among us hasn't had to consider such tradeoffs?
https://fed.brid.gy/r/https://bsky.app

Matt Novak (@paleofuture.bsky.social)
"balancing act" [contains quote post or other embedded content]

reuters: Reuters news stories (1987, 2000)
A bipartite network of Reuters news stories and words. Edges connect each story to all the words it contains.
This network has 1065176 nodes and 60569726 edges.
Tags: Informational, Language, Unweighted
https://networks.skewed.de/net/reuters…

Ah, where to begin…
"Fi.pool.ntp.org contains a server with inappropriate name"
https://community.ntppool.org/t/fi-pool-ntp-org-contains-a-server-with-inappropriate-name/3835/1

In which I spelunk through the low-level mechanics of traversing Nondeterministic Finite Automata. ε-closures FTW! https://www.tbray.org/ongoing/When/202x/2025/07/07/Epsilon-Wrangling
I’m sure that the world’s population contains dozens of people w…

QRS: Epsilon Wrangling

This is the header from a german book seller's website. Notice, that the sorta *wishlist* heart icon badge maxes out at single digit 9 !
Is that the real world, where people only have like nine items that they save? Is this just for “design aesthetics”? My wishlist contains 107!

Robust Noise Attenuation via Adaptive Pooling of Transformer Outputs
Greyson Brothers
https://arxiv.org/abs/2506.09215 https://arxiv.…

Robust Noise Attenuation via Adaptive Pooling of Transformer Outputs
We investigate the design of pooling methods used to summarize the outputs of transformer embedding models, primarily motivated by reinforcement learning and vision applications. This work considers problems where a subset of the input vectors contains requisite information for a downstream task (signal) while the rest are distractors (noise). By framing pooling as vector quantization with the goal of minimizing signal loss, we demonstrate that the standard methods used to aggregate transformer…

reuters: Reuters news stories (1987, 2000)
A bipartite network of Reuters news stories and words. Edges connect each story to all the words it contains.
This network has 1065176 nodes and 60569726 edges.
Tags: Informational, Language, Unweighted
https://networks.skewed.de/net/reuters…

Hola #MastondonCR ha salido una nueva versión del software Mastodon y con vamos a instalarlo en nuestra comunidad de Mastodon.CR
Esta es la publicación de Mastodon donde cuentan las nuevas características y mejoras: https://

Quench dynamics of negativity Hamiltonians
Riccardo Travaglino, Colin Rylands, Pasquale Calabrese
https://arxiv.org/abs/2506.09561 https://

Quench dynamics of negativity Hamiltonians
In this paper, we investigate the quench dynamics of the negativity and fermionic negativity Hamiltonians in free fermionic systems. We do this by generalizing a recently developed quasiparticle picture for the entanglement Hamiltonians to tripartite geometries. We obtain analytic expressions for these quantities which are then extensively checked against previous results and numerics. In particular, we find that the standard negativity Hamiltonian contains both non-local hopping terms and four…

https://bsky.app/profile/jonpainter.bsky.social/post/3loqihxmeps23

Very interesting applied security research into the #GSMA #eSIM universe, specfically the use of the JavaCard VM with its questionable security architecture depending on an off-card bytecode verifier in the context of the eUICC which inherently contains eSIM profiles of different [competing] mobile operators, e…

"‘A Trojan horse’: how toxic sewage sludge became a threat to the future of British farming"
#UK #UnitedKingdom #Sewage

us_roads: United States roads (2000)
The road networks of the 50 US States and the District of Columbia based on UA Census 2000 TIGER/Line Files. Edges are stretches of road and vertices are intersections of roads. The data sets were assembled by Dominik Schultes. The 'merged' network contains all the states merged together.
This network has 308401 nodes and 385164 edges.
Tags: Transportation, Roads, Unweighted

Pervasive ellipticity in locally compact groups
Alexandru Chirvasitu
https://arxiv.org/abs/2506.09642 https://arxiv.org/pdf/2506.0964…

Pervasive ellipticity in locally compact groups
A topological group is (openly) almost-elliptic if it contains a(n open) dense subset of elements generating relatively-compact cyclic subgroups. We classify the (openly) almost-elliptic connected locally compact groups as precisely those with compact maximal semisimple quotient and whose maximal compact subgroups act trivial-weight-freely on the Euclidean quotients of the closed derived series' successive layers. In particular, an extension of a compact connected group $\mathbb{K}$ by a connec…

In case anyone here has connections with the Python team: can you please tell them to update their docs on XML security? The way it is is quite misleading, and it's been annoying me for a while. I raised this a while ago in their issue tracker, but it got no reaction whatsoever. https://github.com/python/cpython/issu…

Reconsider XML Security warnings / obsolete vulnerabilities · Issue #127502 · python/cpython
Documentation The documentation for the xml.etree.ElementTree API contains the following stark warning: Warning: The xml.etree.ElementTree module is not secure against maliciously constructed data....

Proceedings of the 23rd International Overture Workshop
Hugo Daniel Macedo, Ken Pierce
https://arxiv.org/abs/2506.08680 https://arxiv…

Proceedings of the 23rd International Overture Workshop
This volume contains the papers presented at the 23rd International Overture Workshop, held on the 11th of June 2025. This event was the latest in a series of workshops around the Vienna Development Method (VDM), the open-source project Overture, and related tools and formalisms. VDM is one of the longest established formal methods for systems development. A lively community of researchers and practitioners has grown up in academia and industry has grown around the modelling languages (VDM-SL, …

The US holiday is a memory now, so time to check out today's Metacurity to get briefed on the most critical infosec developments you should know, including
--Italian cops arrest FBI-wanted Chinese hacker who tried to steal COVID-19 vaccine
--Brazilian cops bust IT worker connected to $100m banking systems hack,
--Call of Duty: WWII yanked offline after RCE rumors,
--OpenAI beefs up corporate spying protections,
--DragonForce battles RansomHub,
--Cambod…

Italian cops arrest FBI-wanted Chinese hacker who tried to steal the COVID-19 vaccine
Brazilian cops bust IT worker connected to $100m banking systems hack, Call of Duty: WWII yanked offline after RCE rumors, OpenAI beefs up corporate spying protections, DragonForce battles RansomHub, Cambodia accuses Thai hackers of attacks, Trump's tax bill contains cyber money, much more

Sinto mais orgulho de ser português quando vejo isto do que quando a seleção ganha campeonatos, francamente.
Isto é um Homem. Com H grande.
https://bsky.brid.gy/r/https://bsky.app/profile/did:plc:bbp2b224lro3bfnzcqwwnkfo/post/3lr6lops…

(Chinese) Review: Research progress of artificial vision https://rs.yiigle.com/cmaid/1543337 the paper contains 1 reference to sensory substitution for the blind

Prime Power Residues and Blocking Sets
Bhawesh Mishra, Paolo Santonastaso
https://arxiv.org/abs/2507.07673 https://arxiv.org/pdf/2507…

Prime Power Residues and Blocking Sets
Let $q$ be a fixed odd prime. We show that a finite subset $B$ of integers, not containing any perfect $q^{th}$ power, contains a $q^{th}$ power modulo almost every prime if and only if $B$ corresponds to a blocking set (with respect to hyperplanes) in $\mathrm{PG}(\mathbb{F}_{q}^{k})$. Here, $k$ is the number of distinct prime divisors of $q$-free parts of elements of $B$. As a consequence, the property of a subset $B$ to contain $q^{th}$ power modulo almost every prime $p$ is invariant under …

A note on two cycles of consecutive even lengths in graphs
Binlong Li, Yufeng Pan, Lingjuan Shi
https://arxiv.org/abs/2506.08692 https://

A note on two cycles of consecutive even lengths in graphs
Bondy and Vince proved that a graph of minimum degree at least three contains two cycles whose lengths differ by one or two, which was conjectured by Erdős. Gao, Li, Ma and Xie gave an average degree counterpart of Bondy-Vince's result, stating that every $n$-vertex graph with at least $\frac{5}{2}(n-1)$ edges contains two cycles of consecutive even lengths, unless $4|(n-1)$ and every block of $G$ is a clique $K_5$. This confirms the case $k=2$ of Verstraëte's conjecture, which states th…

ESWC 2025 has just started with the presentation of the submission numbers to the individual tracks:
research track: 98 papers
resource track: 36 papers
in-use track: 22 papers
Looking forward to great presentations and discussions!
#eswc2025 #semweb

https://bsky.app/profile/khwalz.bsky.social/post/3lqzlrgevls2c

https://bsky.app/profile/khwalz.bsky.social/post/3lqzlrgevls2c

Drove through the Blackwall Tunnel to Greenwich and back to Islington yesterday.
South of the river it's all 30MPH speed limits and everything feels too fast and scary compared to the sedate and pedestrian-friendly 20MPH limits in the north.
Since I last went through it, it seems the Blackwall tunnel has added a toll.
The TFL website for setting up to pay the tolls is absolutely awful. Failed in Librewolf, Failed in Firefox. Failed because VPN. Took me four attempts in three different browsers to get it to take payment card details.
Demands *no* special characters in the password?!? And doesn't even tell you what the specific problem with the password is, just "doesn't meet the rules above"
Uses awful validation questions like "mothers maiden name". Bad enough practice to use them at all, but the "memorable date" question restricts to ddmmyy format so you can't even put in a date from outside this century.
For some reason asks for a PIN and and Password both!? Pointless. Then actually refuses the login form if you supply both!?

Setting up the auto-payment doesn't seem to have covered the charges added to the registration plate yesterday, so had to do the payment-details entering yet again to deal with yesterday's charges.
Email validation message contains the link only in the HTML of the email, not the text version, so viewed in Mutt it has no link.
And this all seems to be separate from the Dartford Crossing charge, which had a less crappy but still pretty crappy signup.
Good god council programmers suck at web-dev.
#driving #london #tfl #blackwallTunnel #greenwich

Negated String Containment is Decidable (Technical Report)
Vojt\v{e}ch Havlena, Michal He\v{c}ko, Luk\'a\v{s} Hol\'ik, Ond\v{r}ej Leng\'al
https://arxiv.org/abs/2506.22061

Negated String Containment is Decidable (Technical Report)
We provide a positive answer to a long-standing open question of the decidability of the not-contains string predicate. Not-contains is practically relevant, for instance in symbolic execution of string manipulating programs. Particularly, we show that the predicate notContains(x1 ... xn, y1 ... ym), where x1 ... xn and y1 ... ym are sequences of string variables constrained by regular languages, is decidable. Decidability of a not-contains predicate combined with chain-free word equations and …

A note on finding long directed cycles above the minimum degree bound in 2-connected digraphs
Jadwiga Czy\.zewska, Marcin Pilipczuk
https://arxiv.org/abs/2507.03807

A note on finding long directed cycles above the minimum degree bound in 2-connected digraphs
For a directed graph $G$, let $\mathrm{mindeg}(G)$ be the minimum among in-degrees and out-degrees of all vertices of $G$. It is easy to see that $G$ contains a directed cycle of length at least $\mathrm{mindeg}(G)+1$. In this note, we show that, even if $G$ is $2$-connected, it is NP-hard to check if $G$ contains a cycle of length at least $\mathrm{mindeg}(G)+3$. This is in contrast with recent algorithmic results of Fomin, Golovach, Sagunov, and Simonov [SODA 2022] for analogous questions in …

This https://arxiv.org/abs/2412.09211 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

DeWitt wave functions for de Sitter JT gravity
Jackiw-Teitelboim (JT) gravity in two-dimensional de Sitter space is an intriguing model for cosmological "wave functions of the universe". Its minisuperspace version already contains all physical information. The size of compact slices is parametrized by a scale factor $h > 0$. The dilaton $ϕ$ is chosen to have positive values, $ϕ> 0$, and interpreted as size of an additional compact slice in a higher-dimensional theory. At the boundaries $h=0$, $ϕ=0$, where the volume of the universe vanis…

Ah, where to begin…
"Fi.pool.ntp.org contains a server with inappropriate name"
https://community.ntppool.org/t/fi-pool-ntp-org-contains-a-server-with-inappropriate-name/3835/1

Precise Age For The Binary HD 21278 In The Young Alpha Persei Cluster
Christopher A. Danner, Eric L. Sandquist, Gail H. Schaefer, Luigi R. Bedin, Christopher D. Farrington, Cyprien Lanthermann, Stefan Kraus, Robert Klement, Narsireddy Anugu, John D. Monnier, Jerome A. Orosz, Isabelle Codron, Tyler Gardner, Mayra Gutierrez, Benjamin R. Setterholm, Jeremy Jones, Becky Flores
…

Precise Age For The Binary HD 21278 In The Young Alpha Persei Cluster
We present a study of the double-lined spectroscopic binary HD 21278 that contains one of the brightest main sequence stars in the young $α$ Persei open cluster. We analyzed new spectra and reanalyzed archived spectra to measure precise new radial velocity curves for the binary. We also obtained interferometric data using the CHARA Array at Mount Wilson to measure the sky positions of the two stars and the inclination of the $\sim$ 2 milliarcsecond orbit. We determine that the two stars have m…

lol this project can go fuck itself
https://www.theregister.com/2025/06/10/xlibre_new_xorg_fork/

Forked-off Xlibre tells Wayland display protocol to DEI in a fire
: Project to modernize the X.org X11 server seems to actively court controversy

ExAct: A Video-Language Benchmark for Expert Action Analysis
Han Yi, Yulu Pan, Feihong He, Xinyu Liu, Benjamin Zhang, Oluwatumininu Oguntola, Gedas Bertasius
https://arxiv.org/abs/2506.06277

ExAct: A Video-Language Benchmark for Expert Action Analysis
We present ExAct, a new video-language benchmark for expert-level understanding of skilled physical human activities. Our new benchmark contains 3521 expert-curated video question-answer pairs spanning 11 physical activities in 6 domains: Sports, Bike Repair, Cooking, Health, Music, and Dance. ExAct requires the correct answer to be selected from five carefully designed candidate options, thus necessitating a nuanced, fine-grained, expert-level understanding of physical human skills. Evaluating…

Manifolds with kinks and the asymptotic behavior of the graph Laplacian operator with Gaussian kernel
Susovan Pal, David Tewodrose
https://arxiv.org/abs/2507.07751

Manifolds with kinks and the asymptotic behavior of the graph Laplacian operator with Gaussian kernel
We introduce manifolds with kinks, a class of manifolds with possibly singular boundary that notably contains manifolds with smooth boundary and corners. We derive the asymptotic behavior of the Graph Laplace operator with Gaussian kernel and its deterministic limit on these spaces as bandwidth goes to zero. We show that this asymptotic behavior is determined by the inward sector of the tangent space and, as special cases, we derive its behavior near interior and singular points. Lastly, we sho…

UPDATE: The California National Guard case has been assigned to Judge Charles Breyer,
a Clinton appointee who is the brother of retired Justice Stephen Breyer.
https://bsky.app/profile/chrisgeidner.bsky.social/post/3lrbefg3it22z

Primer to get you started with Optimization and Mathematical Programming in R #rstats

CRAN Task View: Optimization and Mathematical Programming
This CRAN Task View contains a list of packages that offer facilities for solving optimization problems. Although every regression model in statistics solves an optimization problem, they are not part of this view. If you are looking for regression methods, the following views will also contain useful starting points: MachineLearning, Econometrics, Robust Packages are categorized according to the following sections. See also the “Related Links” and “Other Resources” sections at the end.

livejournal_aminer: Livejournal social graph
This network contains the social graph of Livejournal, a free on-line social network where users can keep a blog, journal or diary, where a directed edge (i,j) means that user i follows user j.
This network has 3017286 nodes and 87037567 edges.
Tags: Social, Online, Unweighted
https://…

Comment on "Electric conductivity of graphene: Kubo model versus a nonlocal quantum field theory model (arXiv:2403.02279v3)"
M. Bordag, N. Khusnutdinov, G. L. Klimchitskaya, V. M. Mostepanenko
https://arxiv.org/abs/2506.10792

Comment on "Electric conductivity of graphene: Kubo model versus a nonlocal quantum field theory model (arXiv:2403.02279v3)"
Recently, Rodriguez-Lopez, Wang, and Antezza [arXiv:2403.02279v3; Phys. Rev. B v.111, 115428 (2025)] compared the theoretical descriptions of electric conductivity of graphene given by the Kubo model and quantum field theory in terms of the polarizationtensor. According to these authors, in the spatially nonlocal case, the quantum field theoretical description contains ``hard inconsistencies". To bring the predictions of quantum field theory in agreement with those following from the Kubo model…

This is a great point. The Civil Rights movement iterated towards successful protests and strategies. You know what wasn't helpful for this process? Scolding by liberals.
https://bsky.app/profile/whstancil.bsky.social/post/3lr7wyq52ks2p

Adaptive quantum dynamics with the time-dependent variational Monte Carlo method
Raffaele Salioni, Rocco Martinazzo, Davide Emilio Galli, Christian Apostoli
https://arxiv.org/abs/2506.08575

Adaptive quantum dynamics with the time-dependent variational Monte Carlo method
We introduce an extension of the time-dependent variational Monte Carlo (tVMC) method that adaptively controls the expressivity of the variational quantum state during the simulation. This adaptive tVMC approach addresses numerical instabilities that arise when the variational ansatz is overparameterized or contains redundant degrees of freedom. Building on the concept of the local-in-time error (LITE), a measure of the deviation between variational and exact evolution, we introduce a procedure…

petster: Pet owner social networks (2016)
A network of friendships among users on catster.com and dogster.com. Node represents a user, and edge exists if two users self-identify as friends on either website. The dogster/catster network also contains family links between dog and dog, cat and cat, as well as dog and cat.
This network has 623766 nodes and 15699276 edges.
Tags: Social, Online, Unweighted

Proof-Theoretic Functional Completeness for the Connexive Logic C
Sara Ayhan, Hrafn Valt\'yr Oddsson
https://arxiv.org/abs/2507.06854 https://

Proof-Theoretic Functional Completeness for the Connexive Logic C
We show the functional completeness for the connectives of the non-trivial negation inconsistent logic C by using a well-established method implementing purely proof-theoretic notions only. Firstly, given that C contains a strong negation, expressing a notion of direct refutation, the proof needs to be applied in a bilateralist way in that not only higher-order rule schemata for proofs but also for refutations need to be considered. Secondly, given that C is a connexive logic we need to take a …

Partial independent transversals in multipartite graphs
Penny Haxell, Arpit Mittal, Yi Zhao
https://arxiv.org/abs/2506.09515 https://…

Partial independent transversals in multipartite graphs
Given integers $r>d\ge 0$ and an $r$-partite graph, an independent $(r-d)$-transversal or $(r-d)$-IT is an independent set of size $r-d$ that intersects each part in at most one vertex. We show that every $r$-partite graph with maximum degree $Δ$ and parts of size $n$ contains an $(r-d)$-IT if $n> 2Δ(1-\frac{1}{q})$, provided $q= \lfloor \frac{r}{d+1}\rfloor\ge \frac{4r}{4d+5}$. This is tight when $q$ is even and extends a classical result of Haxell in the $d=0$ case. When $q= \lfloor \frac{r…

At 7 I was walking the 5-ish blocks to/from the neighborhood grocery store occasionally & exploring the patch of woods halfway there. By 9 I was biking over a mile to school every day and often further to my Dad’s apartment. All in University City, an inner suburb of St. Louis. Some of it crossing or riding on major arterial roads & crossing a freeway.
I wasn’t special in any of that. My sisters & kids in my neighborhood did it too.

Reclaim the U.S. flag 🇺🇸at the #NoKings protests around the nation on ⭐️ Saturday, June 14th
when the fascist spends millions of our hard earned tax dollars for a North Korean style military parade for his birthday!
https://

flickr_aminer: Flickr social graph
This network contains the social graph of flickr, a popular photo sharing network for users to upload photos and share photos, where a directed edge (i,j) means that user i follows user j.
This network has 214626 nodes and 9114557 edges.
Tags: Social, Online, Unweighted
https://

Proof of a conjecture on isolation of graphs with a universal vertex
Peter Borg, Alastair Farrugia
https://arxiv.org/abs/2506.09290 https://

Proof of a conjecture on isolation of graphs with a universal vertex
A copy of a graph $F$ is called an $F$-copy. For any graph $G$, the $F$-isolation number of $G$, denoted by $ι(G,F)$, is the size of a smallest subset $D$ of the vertex set of $G$ such that the closed neighbourhood $N[D]$ of $D$ in $G$ intersects the vertex sets of the $F$-copies contained by $G$ (equivalently, $G-N[D]$ contains no $F$-copy). Thus, $ι(G,K_1)$ is the domination number $γ(G)$ of $G$, and $ι(G,K_2)$ is the vertex-edge domination number of $G$. Settling a conjecture of Zhang an…

student_cooperation: Student cooperation (2012)
Network of cooperation among students in the "Computer and Network Security" course at Ben-Gurion University, in 2012. Nodes are students, and edges denote cooperation between students while doing their homework. The graph contains three types of links: Time, Computer, Partners.
This network has 185 nodes and 360 edges.
Tags: Social, Offline, Multigraph, Unweighted

The Republican budget measure that Donald Trump signed into law late last week contains a provision that analysts say will
🔥allow private jet owners to write off the full cost of their aircraft in the first year of purchase,
❌a boon to the ultra-rich that comes as millions of people are set to lose healthcare under the same legislation.
FlyUSA, a private aviation provider, gushed in a blog post that with final passage of the unpopular budget reconciliation package,
…

The Return of 100% Bonus Depreciation: How 2025 Made Private Aircraft Ownership More Valuable Than Ever
The One Big Beautiful Bill Act (H.R.1) was permanently reinstated 100% bonus depreciation for capital equipment, including business & aviation aircraft.

Immersions of large cliques in graphs with independence number 2 and bounded maximum degree
F\'abio Botler, Cristina G. Fernandes, Carla N. Lintzmayer, Rui A. Lopes, Suchismita Mishra, Bruno L. Netto, Maycon Sambinelli
https://arxiv.org/abs/2506.09768

Immersions of large cliques in graphs with independence number 2 and bounded maximum degree
An immersion of a graph $H$ in a graph $G$ is a minimal subgraph $I$ of $G$ for which there is an injection ${\rm i} \colon V(H) \to V(I)$ and a set of edge-disjoint paths $\{P_e: e \in E(H)\}$ in $I$ such that the end vertices of $P_{uv}$ are precisely ${\rm i}(u)$ and ${\rm i}(v)$. The immersion analogue of Hadwiger Conjecture (1943), posed by Lescure and Meyniel (1985), asks whether every graph $G$ contains an immersion of $K_{χ(G)}$. Its restriction to graphs with independence number 2 has…

Cycles and paths through vertices whose degrees are at least the bipartite-hole-number
Chengli Li, Feng Liu, Yurui Tang
https://arxiv.org/abs/2506.09750 ht…

Cycles and paths through vertices whose degrees are at least the bipartite-hole-number
The bipartite-hole-number of a graph $G$, denoted by $\widetildeα(G)$, is the minimum integer $k$ such that there exist positive integers $s$ and $t$ with $s + t = k + 1$, satisfying the property that for any two disjoint sets $A, B \subseteq V(G)$ with $|A| = s$ and $|B| = t$, there is at least one edge between $A$ and $B$. In 1992, Bollobás and Brightwell, and independently Shi, proved that every $2$-connected graph of order $n$ contains a cycle passing through all verti…

lastfm_aminer: Last.fm social graph
This network contains the social graph of last.fm, a site that provides a streaming radio service, where users can search music and get personalized recommendation. A directed edge (i,j) means that user i follows user j.
This network has 136409 nodes and 1685524 edges.
Tags: Social, Online, Unweighted

I am not sure the Trump Administration realizes that while they want us to forget that he pardoned insurrectionists that attacked police officers,
we remember J6.
https://bsky.app/profile/kalimurray.bsky.social/post/3lr42xacqz22f

An exact Ore-degree condition for Hamilton cycles in oriented graphs
Yulin Chang, Yangyang Cheng, Tianjiao Dai, Qiancheng Ouyang, Guanghui Wang
https://arxiv.org/abs/2507.04273

An exact Ore-degree condition for Hamilton cycles in oriented graphs
An oriented graph is a digraph that contains no 2-cycles, i.e., there is at most one arc between any two vertices. We show that every oriented graph $G$ of sufficiently large order $n$ with $\mathrm{deg}^+(x) +\mathrm{deg}^{-}(y)\geq (3n-3)/4$ whenever $G$ does not have an edge from $x$ to $y$ contains a Hamilton cycle. This is best possible and solves a problem of Kühn and Osthus from 2012. Our result generalizes the result of Keevash, Kühn, and Osthus and improves the asymptotic bound obtai…

This isn’t meant as a dunk, or a sarcastic tagging.
Seriously, @jaketapper.bsky.social, how do you not make the clear mental unfitness of the CURRENT president, the guy who CURRENTLY controls the ppl w the guns, your focus going forward?
https://bsky.app/profile/johnpfaff.bsk

They're doing this because the Insurrection Act sounds cool and edgy but they can't actually justify using the Insurrection Act.
It's a silly action by an insecure administration desperately to seem manly and powerful.
It should be criticized relentlessly, but it should also be laughed at.
https://…

student_cooperation: Student cooperation (2012)
Network of cooperation among students in the "Computer and Network Security" course at Ben-Gurion University, in 2012. Nodes are students, and edges denote cooperation between students while doing their homework. The graph contains three types of links: Time, Computer, Partners.
This network has 185 nodes and 360 edges.
Tags: Social, Offline, Multigraph, Unweighted

student_cooperation: Student cooperation (2012)
Network of cooperation among students in the "Computer and Network Security" course at Ben-Gurion University, in 2012. Nodes are students, and edges denote cooperation between students while doing their homework. The graph contains three types of links: Time, Computer, Partners.
This network has 185 nodes and 360 edges.
Tags: Social, Offline, Multigraph, Unweighted

The U.S. Army is being ordered to terrorize the American people.
https://bsky.app/profile/reichlinmelnick.bsky.social/post/3ltfvcmozn22o

Aaron Reichlin-Melnick (@reichlinmelnick.bsky.social)
Military documents confirm that the LA operation today was a “show of presence” intended to send a message to LA residents about the power of the federal government. After staging with armed soldiers and Border Patrol agents on horse, they packed up and left after a short walk. [contains quote post or other embedded content]

On the spectra of prefix-reversal graphs
Sa\'ul A. Blanco, Charles Buehrle
https://arxiv.org/abs/2506.08345 https://arxiv.org/pdf…

On the spectra of prefix-reversal graphs
In this paper, we study spectral properties of prefix-reversal graphs. These graphs are obtained by connecting two elements of $C_m\wr S_n$ via prefix reversals. If $m=1,2$, the corresponding prefix-reversal graphs are the classic pancake and burnt pancake graphs. If $m>2$, then one can consider the directed and undirected versions of these graphs. We prove that the spectrum of the undirected prefix-reversal graph $\mathbb{P}_m(n)$ contains all even integers in the interval $[0,2n]\setminus\{2\…

us_congress: US Congressional co-sponsorship (1973-2016)
Two temporal networks of bill co-sponsorship tendencies among US Congresspeople, from 1973 (93rd Congress) to 2016 (114th Congress). Edges are signed, indicating the presence of a significant tendency to co-sponsor, or tendency to not co-sponsor, bills. Two networks per year, one for each chamber (House, Senate). Each file contains the signed network for a chamber of congress (H = House, S = Senate) in one session (e.g. 93 = 93rd…

Infinite induced-saturated graphs
Marthe Bonamy, Carla Groenland, Tom Johnston, Natasha Morrison, Alex Scott
https://arxiv.org/abs/2506.08810 https://

Infinite induced-saturated graphs
A graph $G$ is $H$-induced-saturated if $G$ is $H$-free but deleting any edge or adding any edge creates an induced copy of $H$. There are various graphs $H$, such as $P_4$, for which no finite $H$-induced-saturated graph $G$ exists. We show that for every finite graph $H$ that is not a clique or stable set, there always exists a countable $H$-induced-saturated graph. In fact, a stronger property can be achieved: there is an $H$-free graph $G$ such that $G'$ contains a copy of $H$ whenever $G'\…

sp_hospital: Hospital ward dynamic contacts (2010)
This dataset contains the temporal network of contacts between patients, patients and health-care workers (HCWs) and among HCWs in a hospital ward in Lyon, France, from Monday, December 6, 2010 at 1:00 pm to Friday, December 10, 2010 at 2:00 pm. The study included 46 HCWs and 29 patients.
This network has 75 nodes and 32424 edges.
Tags: Social, Offline, Unweighted, Temporal, Metadata

pokec: Pokec online social network (2012)
The online social network of Pokec, a popular OSN in Slovakia, from 2012. Date covers about 10 years and more than 1.6 million people. Profile data contains gender, age, hobbies, interest, education etc. Profile metadata are in Slovak language. Friendships in Pokec are oriented.
This network has 1632804 nodes and 30622564 edges.
Tags: Social, Online, Metadata

This is the kind of thing that does get fixed by making some noise about it.
https://bsky.app/profile/andycraig.bsky.social/post/3ltbemacdhc2g

student_cooperation: Student cooperation (2012)
Network of cooperation among students in the "Computer and Network Security" course at Ben-Gurion University, in 2012. Nodes are students, and edges denote cooperation between students while doing their homework. The graph contains three types of links: Time, Computer, Partners.
This network has 185 nodes and 360 edges.
Tags: Social, Offline, Multigraph, Unweighted

sp_hospital: Hospital ward dynamic contacts (2010)
This dataset contains the temporal network of contacts between patients, patients and health-care workers (HCWs) and among HCWs in a hospital ward in Lyon, France, from Monday, December 6, 2010 at 1:00 pm to Friday, December 10, 2010 at 2:00 pm. The study included 46 HCWs and 29 patients.
This network has 75 nodes and 32424 edges.
Tags: Social, Offline, Unweighted, Temporal, Metadata

reuters: Reuters news stories (1987, 2000)
A bipartite network of Reuters news stories and words. Edges connect each story to all the words it contains.
This network has 1065176 nodes and 60569726 edges.
Tags: Informational, Language, Unweighted
https://networks.skewed.de/net/reuters…

sp_infectious: Art exhibit dynamic contacts (2011)
This dataset contains the daily dynamic contact networks collected during the Infectious SocioPatterns event that took place at the Science Gallery in Dublin, Ireland, during the artscience exhibition INFECTIOUS: STAY AWAY. Each file in the downloadable package contains a tab-separated list representing the active contacts during 20-second intervals of one day of data collection. Each line has the form “t i j“, where i and j are the a…

sp_infectious: Art exhibit dynamic contacts (2011)
This dataset contains the daily dynamic contact networks collected during the Infectious SocioPatterns event that took place at the Science Gallery in Dublin, Ireland, during the artscience exhibition INFECTIOUS: STAY AWAY. Each file in the downloadable package contains a tab-separated list representing the active contacts during 20-second intervals of one day of data collection. Each line has the form “t i j“, where i and j are the a…

arxiv_authors: Arxiv authors (1993-2003)
Scientific collaborations between authors of papers submitted to arxiv.org, under 5 categories: gr-qc, astro-ph, cond-mat, hep-ph, and hep-th categories, spanning January 1993 to April 2003. If an author i co-authored a paper with author j, the graph contains a undirected edge from i to j. If the paper is co-authored by k authors this generates a completely connected (sub)graph on k nodes.
This network has 89209 nodes and 237010 edges.

lastfm_aminer: Last.fm social graph
This network contains the social graph of last.fm, a site that provides a streaming radio service, where users can search music and get personalized recommendation. A directed edge (i,j) means that user i follows user j.
This network has 136409 nodes and 1685524 edges.
Tags: Social, Online, Unweighted

reuters: Reuters news stories (1987, 2000)
A bipartite network of Reuters news stories and words. Edges connect each story to all the words it contains.
This network has 1065176 nodes and 60569726 edges.
Tags: Informational, Language, Unweighted
https://networks.skewed.de/net/reuters…

us_roads: United States roads (2000)
The road networks of the 50 US States and the District of Columbia based on UA Census 2000 TIGER/Line Files. Edges are stretches of road and vertices are intersections of roads. The data sets were assembled by Dominik Schultes. The 'merged' network contains all the states merged together.
This network has 463652 nodes and 553599 edges.
Tags: Transportation, Roads, Unweighted

myspace_aminer: MySpace social graph
This network contains the social graph of MySpace, a social networking website which also has a strong music emphasis. A directed edge (i,j) means that user i follows user j.
This network has 854498 nodes and 6489736 edges.
Tags: Social, Online, Unweighted
https://netwo…

lastfm_aminer: Last.fm social graph
This network contains the social graph of last.fm, a site that provides a streaming radio service, where users can search music and get personalized recommendation. A directed edge (i,j) means that user i follows user j.
This network has 136409 nodes and 1685524 edges.
Tags: Social, Online, Unweighted

sp_hospital: Hospital ward dynamic contacts (2010)
This dataset contains the temporal network of contacts between patients, patients and health-care workers (HCWs) and among HCWs in a hospital ward in Lyon, France, from Monday, December 6, 2010 at 1:00 pm to Friday, December 10, 2010 at 2:00 pm. The study included 46 HCWs and 29 patients.
This network has 75 nodes and 32424 edges.
Tags: Social, Offline, Unweighted, Temporal, Metadata

livejournal_aminer: Livejournal social graph
This network contains the social graph of Livejournal, a free on-line social network where users can keep a blog, journal or diary, where a directed edge (i,j) means that user i follows user j.
This network has 3017286 nodes and 87037567 edges.
Tags: Social, Online, Unweighted
https://…

student_cooperation: Student cooperation (2012)
Network of cooperation among students in the "Computer and Network Security" course at Ben-Gurion University, in 2012. Nodes are students, and edges denote cooperation between students while doing their homework. The graph contains three types of links: Time, Computer, Partners.
This network has 185 nodes and 360 edges.
Tags: Social, Offline, Multigraph, Unweighted

student_cooperation: Student cooperation (2012)
Network of cooperation among students in the "Computer and Network Security" course at Ben-Gurion University, in 2012. Nodes are students, and edges denote cooperation between students while doing their homework. The graph contains three types of links: Time, Computer, Partners.
This network has 185 nodes and 360 edges.
Tags: Social, Offline, Multigraph, Unweighted

student_cooperation: Student cooperation (2012)
Network of cooperation among students in the "Computer and Network Security" course at Ben-Gurion University, in 2012. Nodes are students, and edges denote cooperation between students while doing their homework. The graph contains three types of links: Time, Computer, Partners.
This network has 185 nodes and 360 edges.
Tags: Social, Offline, Multigraph, Unweighted

reuters: Reuters news stories (1987, 2000)
A bipartite network of Reuters news stories and words. Edges connect each story to all the words it contains.
This network has 1065176 nodes and 60569726 edges.
Tags: Informational, Language, Unweighted
https://networks.skewed.de/net/reuters…

sp_baboons: Baboons' interactions (2020)
Network of interactions between a group of 20 Guinea baboons living in an enclosure of a Primate Center in France, between June 13th 2019 and July 10th 2019. The data set contains observational and wearable sensors data.
This network has 13 nodes and 63095 edges.
Tags: Social, Animal, Offline, Unweighted, Weighted, Temporal, Metadata

sp_baboons: Baboons' interactions (2020)
Network of interactions between a group of 20 Guinea baboons living in an enclosure of a Primate Center in France, between June 13th 2019 and July 10th 2019. The data set contains observational and wearable sensors data.
This network has 13 nodes and 63095 edges.
Tags: Social, Animal, Offline, Unweighted, Weighted, Temporal, Metadata

sp_baboons: Baboons' interactions (2020)
Network of interactions between a group of 20 Guinea baboons living in an enclosure of a Primate Center in France, between June 13th 2019 and July 10th 2019. The data set contains observational and wearable sensors data.
This network has 13 nodes and 63095 edges.
Tags: Social, Animal, Offline, Unweighted, Weighted, Temporal, Metadata