Tootfinder

Beste @… hoe kan het nu dat in de variantenanalyse vrijwel alle gevonden (sub)varianten onder 'other' worden geschaard?
En toch wordt in de begeleidende tekst JN.1 dominant genoemd. Voor week 21, 22 en 23 kun je dat gezien de data toch niet volhouden lijkt me.
Wordt het niet eens tijd voor het toevoegen van (gezien jullie tekst) minimaal de subva…

from my link log —
Bootstrapping HTTP/1.1, HTTP/2, and HTTP/3.
https://www.netmeister.org/blog/http-123.html
saved 2025-05-29 http…

Bootstrapping HTTP/1.1, HTTP/2, and HTTP/3
How do we get from HTTP/1.1 all the way to 11... I mean, to HTTP/3? Let's look at the path browsers take.

I’m always excited to see people moving to vehicles that are (1) smaller and (2) more electric/human-powered. However, I probably agree with @… on this one.
Questions for this and any such “Should it use bike infrastructure?” situation:
1. Does it have emissions while in operation?
2. Does it regularly •stop• in the bike line (in practice, not just in theory)?
3. Does it block the full width of a narrow-ish urban bike lane, and thus prevent passing where a cargo bike would allow it?
4. What’s the magnitude of its momentum (weight times speed) while in operation? https://social.wildeboer.net/@jwildeboer/114845877730092611

In der WAZ gibt es einen Städtevergleich, unter anderem zu den Themen Parken und Nahverkehr. Bochum erhält dabei die Note 3,6 für das Parken und 2,4 für den Nahverkehr. (Ach, wäre es doch nur so einfach...)
Das muss an den Erwartungen liegen, die Menschen an das Autofahren haben; ich kann mir das nicht anders erklären. Aus meiner 16-jährigen Erfahrung in der mobilen Pflege kann ich anekdotisch berichten, dass ich überall legal parken konnte, nur nicht immer vor der Haustür. (1/2)

Headway management is a net good, but it's no fun being on the bus that's being slowed down to maintain headway. You've got places to be and that bus is draaaagging, missing every light on purpose.
https://www.sfmta.com/media/42843/download?inline

Baltimore mayor & council members introduce comprehensive yimby package. Has backing of city's main business & community action organizations:
● Legalize 2-, 3- & 4-unit houses in 1-family districts
● Abolish minimum off-street parking requirements
● Legalize single-staircase structures with more than 3 stories
I don't think I've seen all this in one package anywhere up to now.

Baltimore’s top YIMBYs want to erase zoning rules blocking more housing
A package of five bills will attempt to make it easier to build and redevelop Baltimore City properties.

On the $4$-clique cover number of graphs
Yihan Chen, Jialin He, Tianying Xie
https://arxiv.org/abs/2506.10478 https://arxiv.org/pdf/2…

On the $4$-clique cover number of graphs
In 1966, Erdős, Goodman, and Pósa proved that $\lfloor n^2/4 \rfloor$ cliques are sufficient to cover all edges in any $n$-vertex graph, with tightness achieved by the balanced complete bipartite graph. This result was generalized by Dau, Milenkovic, and Puleo, who showed that at most $\lfloor \frac n 3 \rfloor \lfloor \frac {n+1} 3 \rfloor \lfloor \frac {n+2} 3 \rfloor$ cliques are needed to cover all triangles in any $n$-vertex graph $G$, and the bound is best possible as witnessed by the b…

Nice, #Python 3.9 is very soon EOL [1], so it is finally fine to use Structural Pattern Matching [2] (i.e. the `match` statement, a `switch` on steroids) everywhere! 🥳
[1] https://devguide.python.org/versions/

lmao @ this aliexpress vendor complaining about supply chains
we've all been there mate

1/ Feels a bit poignant to be putting finishing touches on the next vesion of my book (PLAI 3.2.5) knowing it'll be the last of the v3, and if my planned experiment goes well, it may be the last longform book I will ever write. I will truly miss longform writing: ↵

Last week, our students learned how to conduct a proper evaluation for an NLP experiment. To this end, we introduced a small textcorpus with sentences about Joseph Fourier, who counts as one of the discoverers of the greenhouse effect, responsible for global warming.

1. Magazine finished today. Relief. Next edition ...
2. Breakfast at a friend's house, he made omelets. Good chat.
3. Book I ordered has arrived.
#thankful #3goodthings

arse:
'Accept State: remote can't support version # {2}
Program Version (Minimum): 3'
Jun 11 15:07:08 major sh[1012]: rpc.nfsd: Writing version string to kernel: 2 3 4 4.1 4.2
Jun 11 15:07:08 major sh[1012]: rpc.nfsd: Setting version failed: errno 22 (Invalid argument)
OK, so Debian Trixie has NFSv2 server configured out of the kernel; (it has the client as a module)

If you read the "Bluesky requires IDs now" post:
1. This only applies to UK users.[1]
2. It's because the UK is building a surveillance state that requires websites and apps to do this, not because Bluesky is evil.[2]
3. It's either that or shut down in the UK.
Whether you like it or not, this also affects Mastodon—and even personal blogs with comments enabled.[3]
[1] https://www.theverge.com/news/704468/bluesky-age-verification-uk-online-safety-act
[2] https://en.wikipedia.org/wiki/Online_Safety_Act_2023
[3] https://www.bentasker.co.uk/posts/blog/law/doing-an-osa-assessment-for-my-single-user-fedi-server.html

It's always wild to me how many professions we hold to a higher standard than cops. https://mstdn.social/@mcnado/114844474193049944

Phishing scams in 3...2...
https://journa.host/@w7voa/114672813786321167

Steve Herman (@w7voa@journa.host)
Attached: 1 image Official US government website: The Trump Card is Coming. https://trumpcard.gov/

Mot studentfirande med följande pit-stop:
1 Systemet för att köpa ett flak dricka
2 Upplockning av is
3 En blomma (hoppas det finns såna kvar än)

My guesses at the answers, without actually having specs over even being able to go past the WaPo paywall:
1. 👍
2. 👎
3. 😐 or maybe ¯\_(ツ)_/¯
4. 😬

Warped products over one-dimensional base spaces and the RCD condition
Christian Ketterer
https://arxiv.org/abs/2506.10809 https://ar…

Warped products over one-dimensional base spaces and the RCD condition
We prove the Riemannian curvature-dimension condition $\mathsf{RCD}(KN,N+1)$ for an $N$-warped product $B\times_f^N F$ over a one-dimensional base space $B$ with a Lipschitz function $f: B\rightarrow \mathbb R_{\geq 0}$, provided (1) $f$ is a $Kf$-concave function, (2) $f$ satisfies a sub-Neumann boundary condition $\frac{\partial f}{\partial n}\geq 0$ on $\partial B\backslash f^{-1}(0)$ and $F$ is a compact metric measure space satisfying (3) the condition $\mathsf{RCD}(K_F (N-1), N)$ with $K_…

Universal gates for a metastable qubit in strontium-88
Renhao Tao, Ohad Lib, Flavien Gyger, Hendrik Timme, Maximilian Ammenwerth, Immanuel Bloch, Johannes Zeiher
https://arxiv.org/abs/2506.10714

Universal gates for a metastable qubit in strontium-88
Metastable atomic qubits are a highly promising platform for the realization of quantum computers, owing to their scalability and the possibility of converting leakage errors to erasure errors mid-circuit. Here, we demonstrate and characterize a universal gate set for the metastable fine-structure qubit encoded between the $^3\text{P}_0$ and $^3\text{P}_2$ states in bosonic strontium-88. We find single-qubit gate fidelities of 0.993(1), and two-qubit gate fidelities of 0.9945(6) after correctin…

This https://arxiv.org/abs/2503.03933 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Arithmetic properties of Cantor sets involving non-diagonal forms
We show conditions on $k$ such that any number $x$ in the interval $[0, k/2]$ can be represented in the form $x_1^{a_1} x_2^{a_2} + x_3^{a_3} x_4^{a_4} + \cdots + x_{k-1}^{a_{k-1}} x_k^{a_k}$, where the exponents $a_{2i-1}$ and $a_{2i}$ are positive integers satisfying $a_{2i-1} + a_{2i} = s$ for $i = 1, 2, \dots, k/2$, and each $x_i$ belongs to the generalized Cantor set. Moreover, we discuss different types of non-diagonal polynomials and clarify the optimal results in low-dimensional cases.

Band Meandering due to Charged Impurity Effects and Carrier Transport in Ternary Topological Insulators
Kanav Sharma, Niranjay K R, Radha Krishna Gopal, Chiranjib Mitra
https://arxiv.org/abs/2507.08579

Band Meandering due to Charged Impurity Effects and Carrier Transport in Ternary Topological Insulators
In this study, we investigated the impact of charged impurities on the electrical properties of the topological insulator $\left(\mathrm{Bi}_{0.3} \mathrm{Sb}_{0.7}\right)_2 \mathrm{Te}_3$ (BST) and its indium-doped counterpart, $\mathrm{In}_{0.14}\left(\mathrm{Bi}_{0.3} \mathrm{Sb}_{0.7}\right)_{1.86} \mathrm{Te}_3$ (IBST), using field-effect gating. For thin BST (30 nm), charged impurities, potentially from silicon dioxide substrate traps, contribute to band tail-type localization, with the i…

Latest Power Ranking
1. Satie
2. Cursing
3. Coffee

Hey Irish banks hows it goin?

On Axially Symmetric Perturbations of Kerr Black Hole Spacetimes
Nishanth Gudapati
https://arxiv.org/abs/2507.08326 https://arxiv.org…

On Axially Symmetric Perturbations of Kerr Black Hole Spacetimes
The lack of a positive-definite and conserved energy is a serious obstacle in the black hole stability problem. In this work, we will show that there exists a positive-definite and conserved Hamiltonian energy for axially symmetric linear perturbations of the exterior of Kerr black hole spacetimes. In the first part, based on the Hamiltonian dimensional reduction of 3+1 axially symmetric, Ricci-flat Lorentzian spacetimes to a 2+1 Einstein-wave map system with the negatively curved hyperbolic 2-…

Polynomial slowdown in space-inhomogeneous branching Brownian motion
Julien Berestycki, David Geldbach, Michel Pain
https://arxiv.org/abs/2506.10623 https:…

Polynomial slowdown in space-inhomogeneous branching Brownian motion
We consider a branching Brownian motion in $\mathbb{R}^2$ in which particles independently diffuse as standard Brownian motions and branch at an inhomogeneous rate $b(θ)$ which depends only on the angle $θ$ of the particle. We assume that $b$ is maximal when $θ=0$, which is the preferred direction for breeding. Furthermore we assume that $b(θ) = 1 - β\abs{θ}^α+ O(θ^2)$, as $θ\to 0$, for $α\in (2/3,2)$ and $β>0.$ We show that if $M_t$ is the maximum distance to the origin at time $t$,…

Generalized Modulated Symmetries in $\mathbb{Z}_2$ Topological Ordered Phases
Gustavo M. Yoshitome, Heitor Casasola, Rodrigo Corso, Pedro R. S. Gomes
https://arxiv.org/abs/2506.10819

Generalized Modulated Symmetries in $\mathbb{Z}_2$ Topological Ordered Phases
We study $\mathbb{Z}_2$ topological ordered phases in 2+1 dimensions characterized by generalized modulated symmetries. Such phases have explicit realizations in terms of fixed-point Hamiltonians involving commuting projectors with support $h=3,5,7,\ldots$ in the horizontal direction, which dictates the modulation of the generalized symmetries. These symmetries are sensitive to the lattice sizes. For certain sizes, they are spontaneously broken and the ground state is degenerated, while for the…

Precision $e^ e^-$ Hemisphere Masses in the Dijet Region with Power Corrections
Andre H. Hoang, Vicent Mateu, Matthew D. Schwartz, Iain W. Stewart
https://arxiv.org/abs/2506.09130

Precision $e^+e^-$ Hemisphere Masses in the Dijet Region with Power Corrections
We derive high-precision results for the $e^+e^-$ heavy jet mass (HJM) $d σ/d ρ$ and dihemisphere mass (DHM) $d^2σ/(d s_1 d s_2)$ distributions, for $s_1\sim s_2$, in the dijet region. New results include: i) the N$^3$LL resummation for HJM of large logarithms $\ln^n(ρ)$ at small $ρ$ including the exact two-loop non-global hemisphere soft function, the 4-loop cusp anomalous dimension and the 3-loop hard and jet functions, ii) N$^3$LL results for DHM with resummation of logarithms $\ln(s_{1…

I had this idea for a Cairn lifepath generator where there are three stages of life and you roll 1d6 for your stats at each stage, and also get appropriate items.
It has not been playtested, it's barely been proofread, but I've been having a lot of fun generating guys
perchance.org/lt8m69fg35
#ttrpg #CairnRpg

1. To continue using this software/device you must update the firmware.
2. Download update.
3. Try to install update.
4. An unknown error occurred.
5. Go to 1.

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): III. Dust and Gas Disk Properties in the Lupus Star-forming Region
Dingshan Deng, Miguel Vioque, Ilaria Pascucci, Laura M. P\'erez, Ke Zhang, Nicol\'as T. Kurtovic, Leon Trapman, Estephani E. TorresVillanueva, Carolina Agurto-Gangas, John Carpenter, Paola Pinilla, Uma Gorti, Beno\^it Tabone, Anibal Sierra, Giovanni P. Rosotti, Lucas A. Cieza, Rossella Anania, Camilo Gonz\'alez-Ruilova, Michiel R. Hogerheijd…

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): III. Dust and Gas Disk Properties in the Lupus Star-forming Region
We present Band 6 and Band 7 observations of 10 Lupus disks around M3-K6 stars from the ALMA survey of Gas Evolution in PROtoplanetary disks (AGE-PRO) Large Program. In addition to continuum emission in both bands, our Band 6 setup covers the $\mathrm{{}^{12}CO}$, $\mathrm{{}^{13}CO}$ and $\mathrm{C^{18}O}\,J$=2-1 lines, while our Band 7 setup covers the $\mathrm{N_2H^+}\,J$=3-2 line. All of our sources are detected in $\mathrm{{}^{12}CO}$ and $\mathrm{{}^{13}CO}$, 7 out of 10 are detected in $…

this is the first time since 2020 i've been okay with dailying linux on my desktop with at least 90% of my stuff working, and also the first time i've felt like VR on linux on my quest 3 is nearly as usable as it is on windows. most of the online multiplayer games i've been playing don't block linux too, shoutout splitgate 1/2, the finals and RIP xdefiant

Schritt 1: Deutsche/österreichische Wissenschaftler googlen.
Schritt 2: Geburts- & Sterbedaten sowie Orte im Google Knowledge Graph checken.
Schritt 3: IF Geburtsdatum < 1933 AND Sterbedatum > 1933 AND AND Geburtsort == Deutschland AND Sterbeort == USA/UK/europäisches Ausland THEN Wette mit Euch selbst abschließen:
Ich wette, die Person ist jüdisch oder konvertiert.
Schritt 4: In der Wikipedia nachsehen.
Schritt 5: Die Wette gegen Euch selbst gewonnen ha…

The $\mathcal{W}$-algebra bootstrap of 6d $\mathcal{N}=(2,0)$ theories
Mitchell Woolley
https://arxiv.org/abs/2506.08094 https://arxi…

The $\mathcal{W}$-algebra bootstrap of 6d $\mathcal{N}=(2,0)$ theories
6d (2,0) SCFTs of type $\mathfrak{g}$ have protected subsectors that were conjectured in arxiv:1404.1079 to be captured by $\mathcal{W}_\mathfrak{g}$ algebras. We write down the crossing equations for mixed four-point functions $\langle S_{k_1} S_{k_2}S_{k_3}S_{k_4}\rangle$ of 1/2-BPS operators $S_{k_i}$ in 6d (2,0) theories and detail how a certain twist reduces this system to a 2d meromorphic CFT multi-correlator bootstrap problem. We identify the relevant 6d (2,0) $\mathcal{W}$-algebras of t…

Interesting that some who replied to my post on tax and GDP growth yesterday missed the point.
The point isn't to debate whether tax -> growth (it might, with a tail wind).
The point is that
1) Growth won't happen like it used to.
2) That is good because GDP growth is ecologically and socially lethal.
3) So our leaders (sic) had better adapt to the new reality and use taxation and other measures to build a better, fairer future.
More here:

Getting Real about the Crises Facing the UK | Stop the Damage! Build a Better Future!
Britain and the rest of the world face a set of almost intractable challenges, ecological (including climate), economic and social. Yet political leaders with few exceptions are failing to propose the actions and policies that could address the scale of this pancrisis. Here though is an alternative initiative, a kind of alternative manifesto with a portfolio of illustrative policies...

So there’s papers/studies that show:
1. LLMs don’t work (high error rate and making stuff up)
2. Using LLMs reduces your productivity
3. LLMs cannot—ever—be “scaled” to achieve human-level intelligence
4. Most people who speculate in financial bubbles lose their investment
Any questions?

projects in the near future:
1. my mac-mini server runs ubuntu server and need apps. I'm thinking about Heimdall and a next cloud instance that I can reach via tailscale. I will also use it as an exit node for my tailscale network.
2. Making the server sleep when not in use and use an old RPi to 'wake it up' also over tailscale.
3. Making a portable router out of a Radxa Rock 4c that also use tailscale as a vpn alternative using the exit node.

CB Insights: VCs and private equity firms poured $3.1B to fund 144 deals in the LA area in Q1 2025, up from $2.7B in Q1 2024 and $1.4B in Q1 2023 (Los Angeles Times)
https://www.latimes.com/business/story/2025-06-06/venture-capital-…

Venture capital investment rises in L.A., and not just for AI startups
Venture capital investors and private equity firms poured $3.1 billion to fund 144 deals in the L.A. area in the first quarter of this year, up 15% from a year ago.

Kleinkunstpreis Euskirchen 2025
Den Preis gewannen: 1. Artem Zolotarov, 2. Marco Brüser und 3. Pe Krieger.
http://www.kabarett-news.de/News-vom-13.06.2025-kleinkunstpreis-euskirchen.html
Fotograf @maxschmidtfotografie

#pastpuzzle 335
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🟩🟩🟩🟥 ( 2)
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▪️▪️▪️▪️
3/4 🥉
https://www.pastpuzzle.de

This https://arxiv.org/abs/2503.21940 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Normalized vector solutions of nonlinear Schrödinger systems
Given $μ>0$ we look for solutions $ λ\in\mathbb{R}$ and $v_1,\dots,v_k\in H^1(\mathbb{R}^N)$ of the system \[ \begin{cases} \displaystyle -Δv_i+ λv_i+V_i(x)v_i = \sum_{\substack{j=1}}^kβ_{ij} v_iv_j^2 &\text{ in } \mathbb{R}^N, \text{ } i=1,\dots,k,\newline \displaystyle \int_{\mathbb{R}^N} \left(v_1^2+\dots+v_k^2 \right)\mathrm{d} x = μ, \end{cases}\] where $N=1,2,3$, $V_i:\mathbb R^N\to \mathbb R$ and $β_{ij}\in\mathbb{R}$ satisfy $β_{ij}=β_{ji}$ and $β_{ii}>0$. Under …

Very interesting talks at the #SolarEclipse Conference - https://www.vvs.be/subsite/sec-2025/programme - in Belgium I am attending online: here is the key result by Luca Quaglia who had reported his work in great detail in the papers https://iopscience.iop.org/article/10.3847/1538-4365/ac1279 (2021), https://www.iota-es.de/JOA/JOA2022_2.pdf#page=3 (2022) and https://www.iota-es.de/JOA/JOA2024_4.pdf#page=3 (2024) already. There seems to be NO way by now to escape the conclusion the the solar - i.e. photospheric - diameter used by many in the past (and various eclipse map calculations sites still today) is too small. So everyone should use Quaglia's free precision tools at https://www.besselianelements.com instead to get the real length of totality at one's observing spot. And when you are observing at the edges of the totality zone the tools will tell you where the actual border is: traditional maps can the off by some margin! 1/n

IXPE view of the Sco-like source GX 349 2 in the normal branch
Fabio La Monaca, Anna Bobrikova, Juri Poutanen, Francesco Coti Zelati, Maura Pilia, Alexandra Veledina, Matteo Bachetti, Vladislav Loktev, Fei Xie
https://arxiv.org/abs/2507.07163

IXPE view of the Sco-like source GX 349+2 in the normal branch
We present a detailed spectropolarimetric study of the Sco-like Z-source GX 349+2, simultaneously observed with the Imaging X-ray Polarimetry Explorer (IXPE) and Nuclear Spectroscopic Telescope Array (NuSTAR). During the observations GX 349+2 was found mainly in the normal branch. A model-independent polarimetric analysis yields a polarisation degree of $1.1\% \pm 0.3\%$ at a polarisation angle of $29° \pm 7°$ in the 2--8 keV band, with ${\sim}4.1σ$ confidence level significance. No variabil…

Observation of a low energy nuclear recoil peak in the neutron calibration data of an Al$_{2}$O$_{3}$ crystal in CRESST-III
CRESST Collaboration, G. Angloher, S. Banik, A. Bento, A. Bertolini, R. Breier, C. Bucci, L. Burmeister, F. Casadei, E. Cipelli, J. Burkhart, L. Canonica, J. Dohm, F. Dominsky, S. Di Lorenzo, L. Einfalt, A. Erb, E. Fascione, F. v. Feilitzsch, S. Fichtinger, D. Fuchs, V. M. Ghete, P. Gorla, P. V. Guillaumon, D. Hauff, M. Je\v{s}kovsk\'y, J. Jochum, M. Kaznachee…

Observation of a low energy nuclear recoil peak in the neutron calibration data of an Al$_{2}$O$_{3}$ crystal in CRESST-III
The current generation of cryogenic solid state detectors used in direct dark matter and CE\textnu NS searches typically reach energy thresholds of $\mathcal{O}$(10)$\,$eV for nuclear recoils. For a reliable calibration in this energy regime a method has been proposed, providing mono-energetic nuclear recoils at low energies $\sim\,$100$\,$eV$\,$-$\,$1$\,$keV. In this work we report on the observation of a peak at (1113.6$^{+6.5}_{-6.5}$)$\,$eV in the data of an Al$_{2}$O$_{3}$ crystal in CRESS…

All good advice.
https://mastodon.social/@GeePawHill/114820870596337330

The Krasnov effect in full swing.
https://newsie.social/@Tendar/114659229321173173

Tendar (@Tendar@newsie.social)
Attached: 1 image According to the Levada center Russians consider the following 5 nations as the most hostile nations: 1. Germany (55%) 2. UK (49%) 3. Ukraine (43%) 4. USA (40%) 5. Poland (37%)

6 time zones, ~340,000,000 people, ~3,800,000 square miles.
Only 1.2 million sworn law enforcement officers, and only 2.86 million US military personnel, including active duty, National Guard, and Reserves.
Martial law is likely not feasible nationwide. Simply cannot be accomplished even if all LEOs and soldiers were eager to try.
They want to accomplish what 80 years ago was tough (could have gone either way) only in a place with ~21 times the space and ~7 times the peo…

3-dimensional charged black holes in $f({Q})$ gravity
G. G. L. Nashed, Emmanuel N. Saridakis
https://arxiv.org/abs/2506.10046 https://

3-dimensional charged black holes in $f({Q})$ gravity
We present new exact charged black hole solutions in (2+1) dimensions within the framework of $f({Q})$ gravity, where ${Q}$ denotes the non-metricity scalar. By considering a cubic $f({Q})$ form we derive classes of charged and uncharged spherically symmetric solutions, and we identify conditions under which these reduce to the well-known Banados-Teitelboim-Zanelli (BTZ) black hole. Notably, our analysis reveals a novel charged solution that is asymptotically Anti-de Sitter (AdS) but cannot be …

Ethernet nerds: Does this section from 802.3-2022 actually require that you be able to read the currently negotiated speed and duplex state back from this register, or only write to force a specific speed?
Every PHY I've ever seen except the VSC8512 lets you read back the actual operating conditions, but reading the spec it seems that there's not actually a mandate that this capability be there.
The register is defined as readable but it's not well defined whether it …

2-Group Symmetries of 3-dimensional Defect TQFTs and Their Gauging
Nils Carqueville, Benjamin Haake
https://arxiv.org/abs/2506.08178 https://

2-Group Symmetries of 3-dimensional Defect TQFTs and Their Gauging
A large class of symmetries of topological quantum field theories is naturally described by functors into higher categories of topological defects. Here we study 2-group symmetries of 3-dimensional TQFTs. We explain that these symmetries can be gauged to produce new TQFTs iff certain defects satisfy the axioms of orbifold data. In the special case of Reshetikhin-Turaev theories coming from $G$-crossed braided fusion categories $\mathcal C^\times_G$, we show that there are 0- and 1-form symmetri…

i saw this in a krugman post:
Recently the West Side Rag, my ultra-local news source, ran an article titled “The Upper West Side: A Neighborhood for Independent Minds.” Lots of interesting history, but frankly my first reaction was “Yeah, independent minds who can afford to pay $1600 a square foot for housing.”
meanwhile my next door neigbor just got halfway-to-new-york-ridiculous per sq ft. in ann arbor for pete's sake

This https://arxiv.org/abs/2412.16740 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Hilbert's tenth problem for systems of diagonal quadratic forms, and Büchi's problem
In this paper we complete Büchi's proof that there is no decision algorithm for the solubility in integers of arbitrary systems of diagonal quadratic form equations, by proving the assertion that whenever $x_1^2, \cdots, x_5^2$ are five squares such that the second differences satisfy \[x_{k+2}^2 - 2 x_{k+1}^2 + x_k^2 = 2\] for $k = 1,2,3$, then they must be consecutive. This answers a question of J.~Richard~Büchi.

My rank is
0 and harmless!
My flagship is an argosy(use it for boarding with 44 extra crew)
fleet:
1 modified argosy
2 argosy
fleet firepower:
"puny defenses"
Gonna take on a "wanted mission"
I captured the mission objective which was a "wasp" spaceship...so small compared to my fleet, my flagship has no weapons so my fleet did the laser shooting 😃
The wasp sold for 142k.
1/3 xp so far.
2 more …

Deaths by domain of protest over 12 Bolivian presidencies.
Same data, same graphing technique, but sorting the categories (by which occurs across the most bins) brings visual order to this data visualization. #dataviz #rstats

The EoR 21-cm Bispectrum at $z=8.2$ from MWA data I: Foregrounds and preliminary upper limits
Sukhdeep Singh Gill, Somnath Bharadwaj, Khandakar Md Asif Elahi, Shiv K. Sethi, Akash Kumar Patwa
https://arxiv.org/abs/2507.04964

The EoR 21-cm Bispectrum at $z=8.2$ from MWA data I: Foregrounds and preliminary upper limits
We attempt to measure the $z = 8.2$ Epoch of Reionization (EoR) 21-cm bispectrum (BS) using Murchison Widefield Array (MWA) $154.2~\mathrm{MHz}$ data. We find that $B(k_{1\perp}, k_{2\perp}, k_{3\perp}, k_{1\parallel}, k_{2\parallel})$ the 3D cylindrical BS exhibits a foreground wedge, similar to $P(k_{1\perp},k_{1\parallel})$ the 21-cm cylindrical power spectrum. However, the BS foreground wedge, which depends on $(k_{1\perp},k_{1\parallel})$, $(k_{2\perp},k_{2\parallel})$ and $(k_{3\perp},k_{…

AI Tutors vs. Tenacious Myths: Evidence from Personalised Dialogue Interventions in Education
Brooklyn J. Corbett, Jason M. Tangen
https://arxiv.org/abs/2506.09292

AI Tutors vs. Tenacious Myths: Evidence from Personalised Dialogue Interventions in Education
Misconceptions in psychology and education persist despite clear contradictory evidence, resisting traditional correction methods. This study investigated whether personalised AI dialogue could effectively correct these stubborn beliefs. In a preregistered experiment (N = 375), participants holding strong psychology misconceptions engaged in one of three interventions: (1) personalised AI dialogue targeting their specific misconception, (2) generic textbook-style refutation, or (3) neutral AI d…

#3goodthings
1. A much less stressy evening than yesterday
2. Nice weather coming up (just as M's GCSEs finish it's going to be warm and sunny for days)
3. The coffee & walnut cake my son made :moomin_yay:

Enhancing Food-Domain Question Answering with a Multimodal Knowledge Graph: Hybrid QA Generation and Diversity Analysis
Srihari K B, Pushpak Bhattacharyya
https://arxiv.org/abs/2507.06571

Enhancing Food-Domain Question Answering with a Multimodal Knowledge Graph: Hybrid QA Generation and Diversity Analysis
We propose a unified food-domain QA framework that combines a large-scale multimodal knowledge graph (MMKG) with generative AI. Our MMKG links 13,000 recipes, 3,000 ingredients, 140,000 relations, and 14,000 images. We generate 40,000 QA pairs using 40 templates and LLaVA/DeepSeek augmentation. Joint fine-tuning of Meta LLaMA 3.1-8B and Stable Diffusion 3.5-Large improves BERTScore by 16.2\%, reduces FID by 37.8\%, and boosts CLIP alignment by 31.1\%. Diagnostic analyses-CLIP-based mismatch det…

new blog post: Vibe Coding for Flickr CC 4.0 Attribution
https://www.speedofcreativity.org/2025/07/05/vibe-coding-for-flickr-cc-4-0-attribution/
s/o @…

This https://arxiv.org/abs/2412.02003 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Polynomial algorithm for alternating link equivalence
Link equivalence up to isotopy in a 3-space is the problem that lies at the root of knot theory, and is important in 3-dimensional topology and geometry. We consider its restriction to alternating links, given by two alternating diagrams with $n_1$ and $n_2$ crossings, and show that this problem has polynomial algorithm in terms of $max\{n_1, n_2\}$. For the proof, we use Tait flyping conjectures, observations stemming from the work of Lackenby, Menasco, Sundberg and Thistlethwaite on alternati…

c't NerdWord 1255 5/6
🟨⬜⬜⬜🟨
⬜⬜⬜⬜⬜
🟨🟨⬜⬜⬜
⬜⬜🟨⬜⬜
🟩🟩🟩🟩🟩
https://www.heise.de/news/c-t-NerdWord-spielen-9636745.html

Many people do not understand how cooked the German “left” is.

Rock-salt ScN(113) layers grown on AlN$(11\bar{2}2)$ by plasma-assisted molecular beam epitaxy
Duc V. Dinh, Esperanza Luna, Oliver Brandt
https://arxiv.org/abs/2506.09715

Rock-salt ScN(113) layers grown on AlN$(11\bar{2}2)$ by plasma-assisted molecular beam epitaxy
Transition-metal nitrides constitute a versatile class of materials with diverse properties and wide-ranging applications. Exploring new surface orientations and uncovering novel properties can enable innovative material configurations with tailored functionalities for device integration. Here, we report the growth and characterization of (85-210)-nm-thick undoped ScN layers on AlN$(11\bar{2}2)$/Al$_{2}$O$_{3}$$(10\bar{1}0)$ templates via plasma-assisted molecular beam epitaxy. X-ray diffractom…

I always wondered why my 3900X with 64 MB of cache performs so much worse than a 5700X3D with 96 MB of cache. It's only ⇓ more cache, after all.
Well, `lstopo` had the answer. The cache is split into 4 chunks (CCXs), so a single thread only really has 16 MB of cache available.
I actually managed to gain a few FPS through isolating a group of cores that share an L3 cache by manually setting CPU affinity.
1/3

Het failliet van de varianten-kiemsurveillance , of in ieder geval de registratie daarvan, is wel in deze tabel te zien.
Alhoewel er al weken- en wekenlang grote aantallen 'anders' naast de toch ook nog wel regelmatig aangetroffen JN.1 worden geregistreerd, blijft het @… halsstarrig indelen op 3 varianten waarvan er 2 van de 3 nu al vrijwel niet meer ge…

Degree Sequence of Albertson and $\sigma$-Indices on Trees of Order $n\geqslant 3$
Jasem Hamoud, Artem Kornosov
https://arxiv.org/abs/2506.08213 https://…

Degree Sequence of Albertson and $σ$-Indices on Trees of Order $n\geqslant 3$
In this paper, we presented a study of topological indices on trees, where we show a relationship with irregularity of Albertson index and minimum, maximum degrees $δ,Δ$ of graph $G$, where contribute vital roles in determining connection, shading, component incorporation, and realisability where well-known Albertson index as: $\operatorname{irr}(G)=\sum_{uv\in E(G)}\lvert d_u(G)-d_v(G) \rvert$. The sigma index on trees that we introduced as $σ(T)=(d_1-1)^3+\sum_{i=1}^{3}(d_i-1)(d_i-2)+(d_3-…

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): I. Program Overview and Summary of First Results
Ke Zhang, Laura M. P\'erez, Ilaria Pascucci, Paola Pinilla, Lucas A. Cieza, John Carpenter, Leon Trapman, Dingshan Deng, Carolina Agurto-Gangas, Anibal Sierra, Nicol\'as T. Kurtovic, Dary A. Ru\'iz-Rodr\'iguez, Miguel Vioque, James Miley, Beno\^it Tabone, Camilo Gonz\'alez-Ruilova, Rossella Anania, Giovanni P. Rosotti, Estephani TorresVillanueva, Mich…

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): I. Program Overview and Summary of First Results
We present the ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO), a Large Program of the Atacama Large Millimeter/submillimeter Array (ALMA). AGE-PRO aims to systematically trace the evolution of gas disk mass and size throughout the lifetime of protoplanetary disks. It uses a carefully selected sample of 30 disks around M3-K6 stars in three nearby star-forming regions: Ophiuchus (0.5-1 Myr), Lupus (1-3 Myr), and Upper Sco (2-6 Myr). Assuming the three regions had similar initial c…

#Wordle 1,478 5/6*
⬜⬜🟨⬜⬜ <1% of 212,720 (347)
🟩⬜⬜⬜🟨 3% of 118 (4)
🟩⬜⬜⬜🟨 0 of 7 (2)
🟩⬜🟩🟩🟨 0 of 0 (1)
🟩🟩🟩🟩🟩
WordleBot
Skill 69/99
Luck 45/99
I was really stuck after guess 2, which is why I ended up putting the same letter in the last wrong place in guess 3 and 4.

The detection of spatially resolved protosteller outflows and episodic jets in the outer Galaxy
Toki Ikeda, Takashi Shimonishi, Natsuko Izumi, Hiroyuki Kaneko, Satoko Takahashi, Kei E. I. Tanaka, Kenji Furuya, Chikako Yasui
https://arxiv.org/abs/2506.08601

The detection of spatially resolved protosteller outflows and episodic jets in the outer Galaxy
We present the first detection of spatially resolved protostellar outflows and jets in the outer Galaxy. We observed five star-forming regions in the outer Galaxy (Sh 2--283, NOMF05-16/19/23/63; galactocentric distance = 15.7--17.4 kpc) with the Atacama Large Millimeter/submillimeter Array (ALMA). Towards Sh 2--283, we have detected distinct outflow ($\sim$5--50 km s$^{-1}$) and jet components ($\sim$50--100 km s$^{-1}$) associated with the protostar in CO(3--2) emission. The outflows and jets …

Traceable Evidence Enhanced Visual Grounded Reasoning: Evaluation and Methodology
Haochen Wang, Xiangtai Li, Zilong Huang, Anran Wang, Jiacong Wang, Tao Zhang, Jiani Zheng, Sule Bai, Zijian Kang, Jiashi Feng, Zhuochen Wang, Zhaoxiang Zhang
https://arxiv.org/abs/2507.07999

Traceable Evidence Enhanced Visual Grounded Reasoning: Evaluation and Methodology
Models like OpenAI-o3 pioneer visual grounded reasoning by dynamically referencing visual regions, just like human "thinking with images". However, no benchmark exists to evaluate these capabilities holistically. To bridge this gap, we propose TreeBench (Traceable Evidence Evaluation Benchmark), a diagnostic benchmark built on three principles: (1) focused visual perception of subtle targets in complex scenes, (2) traceable evidence via bounding box evaluation, and (3) second-order reasoning to…

Exotic multistrange-anticharm baryon systems
Jing Song, Eulogio Oset
https://arxiv.org/abs/2506.09262 https://arxiv.org/pdf/2506.0926…

Exotic multistrange-anticharm baryon systems
We study exotic baryon systems composed of anticharmed mesons and strange baryons using the extended local hidden gauge approach. By solving the coupled-channel Bethe-Salpeter equation with interaction kernels from vector meson exchange, we explore the formation of hadronic molecular states in sectors with strangeness $S = -1$, $-2$, $-3$ and $-4$. A bound state with a mass of 2888 MeV is found in the $S = -1$ sector with the channels $\bar{D}_s N, ~\bar{D} Λ, ~\bar{D} Σ$. In the $S = -2$ sec…

Coexistence of static and dynamic local magnetic fields in an S = 3/2 honeycomb lattice antiferromagnet Co2Te3O8
J. Khatua, Suheon Lee, M. Pregelj, Samiul Sk, S. K. Panda, Bassam Hitti, Gerald D. Morris, I. da Silva, Kwang-Yong Choi, P. Khuntia
https://arxiv.org/abs/2506.09848

Coexistence of static and dynamic local magnetic fields in an S = 3/2 honeycomb lattice antiferromagnet Co2Te3O8
Two-dimensional honeycomb lattices, characterized by their low coordination numbers, provide a fertile platform for exploring various quantum phenomena due to the intricate interplay between competing magnetic interactions, spin-orbit coupling, and crystal electric fields. Beyond the widely studied Jeff= 1/2 honeycomb systems, S = 3/2 honeycomb lattices present a promising alternative route to realizing the classical spin liquid-like state within the spin-S Kitaev models. Herein, we present cry…

Some statistics about all robotic #LunarLanding attempts so far from 1965 to 2025 compiled from https://en.wikipedia.org/wiki/List_of_missions_to_the_Moon and https://scicomm.xyz/@AkaSci@fosstodon.org/114636519291241321 in which I only count those for which descent to the surface had been initiated, not missions lost at launch or on the way - in a nutshell ~70% of all landings by government agencies went well (essentially the same rate 60 years ago and now!) but only ~30% by private companies. Here goes ...
There have been two separate periods of soft lunar landing attempts of ca. a dozen years each, from 1965 to 1976 and 2013 to 2025 (ongoing) with a huge gap between them.
In the first interval there were 20 attempts with 13 successes (Luna 9, 13, 16, 17, 19, 20, 21 and 24 and Surveyor 1, 3, 5, 6 and 7), one partial success (Luna 23, counting as 50%) and 6 failures (Luna 5, 7, 8, 15 and 18 and Surveyor 4), so the success rate was 13.5/20 = 68 %. All missions were by - the Soviet and U.S. - governments.
In the second interval there were so far 14 attempts with 6 full successes (Chang'e-3, 4, 5 and 6, Vikram 2 and Blue Ghost), three partial successes (SLIM, IM-1 and 2, counting as 75%, 50% and 25%, respectively) and 5 failures (Beresheet, Vikram 1, Hakuto-R 1 and 2 and Luna 25) so the success rate was 7.5 / 14 = 54%.
But looking only at the government missions it was 72%, slighly up from 50 years ago. While for the commercial attempts it was only 29%. In total the success rate was 19 (18 government-run) missions out of 34 (28) attempts or 62% but 69% for governments only. And if you throw in the 6 Apollo landings, the total success rate rises to 68% and the government-only rate goes even up to 75%.

Scale without conformal invariance from integrable deformations of coset CFTs
Georgios Itsios, Konstantinos Siampos
https://arxiv.org/abs/2507.07214 https:…

Scale without conformal invariance from integrable deformations of coset CFTs
We construct the $λ$-model on $SU(3)_k/U(2)_k$ and we compute the one-loop $β$-function for the deformation parameter $λ$. Its non-compact version for $SU(2,1)_{-k}/U(2)_{-k}$ is also considered, whose target space admits an asymptotic region that can be reached when one of the coordinates becomes large. The asymptotic model can be seen as an integrable deformation of the $SU(2)_k/U(1)$ WZW model together with a linear dilaton and a free boson, where integrability is inherited from the paren…

Hypergraphs without complete partite subgraphs
Dhruv Mubayi
https://arxiv.org/abs/2507.06390 https://arxiv.org/pdf/2507.06390

Hypergraphs without complete partite subgraphs
Fix integers $r \ge 2$ and $2\le s_1\le \cdots \le s_{r-1}\le s_r$ and set $S=\prod_{i=1}^{r-1}s_i$. Let $K=K(s_1, \ldots, s_{r-1}, s_r)$ denote the complete $r$-partite $r$-uniform hypergraph with parts of size $s_1, \ldots, s_{r-1}, s_r$. We prove that the maximum number of edges in an $r$-partite $r$-uniform hypergraph with parts $X_1, \ldots, X_r$ each of size $n$ with no copy of $K$ where the part of size $s_i$ is in $X_i$ for all $i$ is $n^{r-1/S-o(1)}$ provided $s_r> 3^{S+o(S)}$. In othe…

The primitive equations for the ocean and atmosphere in anisotropic spaces
Valentin Lemari\'e (LAMA)
https://arxiv.org/abs/2507.07546 https://

The primitive equations for the ocean and atmosphere in anisotropic spaces
In this work, we study the well-posedness of the primitive equations for the ocean and the atmosphere on two specific domains: a bounded domain $Ω_1\mathrel{\mathop:}=(-1,1)^3$ with periodic boundary conditions, and the strip $Ω_2\mathrel{\mathop:}=\mathbb{R}^2\times(-1,1)$ with periodic boundary conditions in the vertical direction. In a first time, we establish a global existence and uniqueness theorem for small initial data in a suitable anisotropic Besov space. Then, we also justify, in a…

On the curvature bounded sphere problem in $\mathbb{R}^3$
Hongda Qiu
https://arxiv.org/abs/2507.06245 https://arxiv.org/pdf/2507.0624…

On the curvature bounded sphere problem in $\mathbb{R}^3$
We prove that if a topological sphere smoothly embedded into $\mathbb{R}^3$ with normal curvatures absolutely bounded by $1$ is contained in an open ball of radius $2$, then the region it bounds must contain a unit ball. This result suggests a potential direction for a problem formulated by D.Burago and A.Petrunin asking whether a topological sphere smoothly embedded in $\mathbb{R}^3$ with normal curvatures absolutely bounded by $1$ encloses a volume of at least $\frac{4}{3}π$. The appendix pr…

This https://arxiv.org/abs/2506.01870 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Various irrational series involving binomial coefficients
Motivated by Galois theory, we propose some new irrational series of Ramanujan's type or Zeilberger's type. For example, we conjecture that \begin{equation*}\sum_{k=1}^\infty\frac{\binom{2k}k^2\binom{4k}{2k}}{(84-32\sqrt6)^{4k}} \left(280k+5\sqrt6+26\right)=\frac3π(2\sqrt3+33\sqrt2) \end{equation*} and \begin{align*}&\sum_{k=1}^\infty\frac{(27(37102-15147\sqrt6))^k}{k^3\binom{2k}k^2\binom{3k}k} \left(9k(11\sqrt6+51)-2(19\sqrt6+54)\right) \\&\qquad=\frac{5625}2\left(\sqrt6 L_{-24}(2)-3G\r…

#EpsteinClientList

So the main "arguments" when I say "AI doesn't work" and "it will collapse" are:
1. "You don't know what you're talking about"
2. "It's inevitable and here to stay, might as well go with the program"
3. "But it's almost there! Just last week they released [name of model] that is so close!"
Literally no one ever replies with any concrete examples with how it reliably, ethically and non-wastefully works for them to increase their productivity and improve their and other people's lives in any meaningful way.
It's always ad hominems, hypotheticals or deeply flawed "it sort of works for this".

Augmented links, shadow links, and the TV volume conjecture: a geometric perspective
Dionne Ibarra, Emma N. McQuire, Jessica S. Purcell
https://arxiv.org/abs/2506.09296

Augmented links, shadow links, and the TV volume conjecture: a geometric perspective
For hyperbolic 3-manifolds, the growth rate of their Turaev-Viro invariants, evaluated at a certain root of unity, is conjectured to give the hyperbolic volume of the manifold. This has been verified for a handful of examples and several infinite families of link complements, including fundamental shadow links. Fundamental shadow links lie in connected sums of copies of $S^1\times S^2$, and their complements are built of regular ideal octahedra. Another well-known family of links with complemen…

Cluster algebraic interpretation of generalized Markov numbers and their matrixizations
Esther Banaian, Yasuaki Gyoda
https://arxiv.org/abs/2507.06900 http…

Cluster algebraic interpretation of generalized Markov numbers and their matrixizations
Markov numbers, i.e. positive integers appearing in solutions to $x^2 + y^2 + z^2 = 3xyz$, can be viewed as specializations of cluster variables. The second author and Matsushita gave a generalization of the Markov equation, $x^2 + y^2 + z^2 + k_1yz + k_2xz + k_3xy = (3+k_1+k_2+k_3)xyz$, whose solutions can be viewed as specializations of cluster variables in generalized cluster algebras. We give two families of matrices in $SL(2,\mathbb{Z}[x_1^\pm,x_2^\pm,x_3^\pm])$ associated to these cluster…

Spin fluctuations, absence of magnetic order, and crystal electric field studies in the Yb$^{3 }$-based triangular lattice antiferromagnet Rb$_3$Yb(VO$_4$)$_2$
Sebin J. Sebastian, R. Kolay, Abhidev. B, Q. -P. Ding, Y. Furukawa, R. Nath
https://arxiv.org/abs/2506.07005

Spin fluctuations, absence of magnetic order, and crystal electric field studies in the Yb$^{3+}$-based triangular lattice antiferromagnet Rb$_3$Yb(VO$_4$)$_2$
We report a comprehensive experimental investigation of the structural, thermodynamic, static, and dynamic properties of a triangular lattice antiferromagnet Rb$_3$Yb(VO$_4$)$_2$. Through the analysis of magnetic susceptibility, magnetization, and specific heat, complemented by crystal electric field (CEF) calculations, we confirm the Kramers' doublet with effective spin $J_{\rm{eff}}=1/2$ ground state. Magnetic susceptibility and isothermal magnetization analysis reveal a weak antiferromagneti…

This https://arxiv.org/abs/2411.14936 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Massive Particle Systems, Wasserstein Brownian Motions, and the Dean-Kawasaki Equation
We develop a unifying theory for four different objects: (1) infinite systems of interacting massive particles; (2) solutions to the Dean-Kawasaki equation with singular drift and space-time white noise; (3) Wasserstein diffusions with a.s. purely atomic reversible random measures; (4) metric measure Brownian motions induced by Cheeger energies on $L^2$-Wasserstein spaces. For the objects in (1)-(3) we prove existence and uniqueness of solutions, and several characterizations, on an arbitrary…

Ich will nicht alleine leiden. Deswegen müsst ihr jetzt mal ganz stark sein.
1/2

Bootstrapping the Simplest Deconfined Quantum Critical Point
Shai M. Chester, Alessandro Piazza, Marten Reehorst, Ning Su
https://arxiv.org/abs/2507.06283 …

Bootstrapping the Simplest Deconfined Quantum Critical Point
We study the $N=3$ case of the $CP^{N-1}$ model, which is a field theory of $N$ complex scalars in $3d$ coupled to an Abelian gauge field with $SU(N) \times U(1)$ global symmetry. Recent evidence suggests the $N=2$ theory is not critical, which makes the $N=3$ theory the simplest possibility of deconfined quantum criticality. We apply the conformal bootstrap to correlators of charge $q=0,1,2$ scalar operators under the $U(1)$ symmetry, which gives us access also to $q=3,4$ operators. After impo…

Microscopic investigation of enhanced Pauli paramagnetism in metallic Pu$_2$C$_3$
R. Yamamoto, M. S. Cook, A. R. Altenhof, P. Sherpa, S. Park, J. D. Thompson, H. E. Mason, D. C. Arellano, D. V. Prada, P. H. Tobash, F. Ronning, E. D. Bauer, N. Harrison, W. A. Phelan, A. P. Dioguardi, M. Hirata
https://arxiv.org/abs/2506.09911

Microscopic investigation of enhanced Pauli paramagnetism in metallic Pu$_2$C$_3$
A combined study of the structural and electronic properties of polycrystalline Pu$_2$C$_3$ is reported based on x-ray diffraction, specific heat, magnetic susceptibility, ${}^{13}$C nuclear magnetic resonance (NMR), and band structure calculations. X-ray diffraction reveals a global noncentrosymmetric cubic lattice, with a nearest-neighbor C--C bond length of $r = 1.38$ Å. ${}^{13}$C NMR measurements indicate that the global cubic symmetry is locally broken, revealing two unique carbon enviro…

Tribrid Inflation, Type II Leptogenesis, and Observable Gravitational Waves in $SU(3)_c \times SU(2)_L \times SU(2)_R \times U(1)_{B-L}$
Waqas Ahmed, Saleh O. Allehabi, Farishta Israr, Mansoor Ur Rehman
https://arxiv.org/abs/2507.05564

Tribrid Inflation, Type II Leptogenesis, and Observable Gravitational Waves in $SU(3)_c \times SU(2)_L \times SU(2)_R \times U(1)_{B-L}$
We present a concrete realization of tribrid inflation within the framework of the gauge group $SU(3)_c \times SU(2)_L \times SU(2)_R \times U(1)_{B-L}$. In this model, inflation is driven by the neutral components of left-handed Higgs triplets, which also play a central role in generating the observed baryon asymmetry of the universe via non-thermal leptogenesis. Tiny neutrino masses arise naturally through a type-II seesaw mechanism, facilitated by right-handed triplet fields. Supergravity co…

Nonvanishing of $L$--functions associated to fixed order characters over function fields
Chantal David, Alexandra Florea, Matilde Lalin
https://arxiv.org/abs/2506.07815

Nonvanishing of $L$--functions associated to fixed order characters over function fields
We show that a positive proportion of the values $L(1/2,χ_c)$ are non-zero, where $χ_c$ is the $\ell^{\text{th}}$ residue symbol for $\ell \geq 3$ over $\mathbb{F}_q[t]$, when averaging over square-free polynomials $c$ in $\mathbb{F}_q[t]$, as $q \equiv 1(\textrm{mod}\,{2\ell})$ is fixed and the degree of $c$ goes to infinity. In the case of $\ell=3$, we show that at least $1/6$ of $L(1/2,χ_c)\neq 0$, while for $\ell>3$, the proportion depends on the order of the character. This improves a p…

Magnetic excitations and exchange parameters of a nickel chain compound PbMn$_2$Ni$_6$Te$_3$O$_{18}$: Neutron scattering and density functional theory studies
S. Uthayakumar, D. T. Adroja, Amit Pokhriyal, A. K. Bera, Haranath Ghosh, Tatiana Gudi, Manh Duc Le, Christian Balz, R. A. Ewings, Minal Gupta, P. R. Sagdeo, D. Prabhakaran, J. P. Goff
https://…

Magnetic excitations and exchange parameters of a nickel chain compound PbMn$_2$Ni$_6$Te$_3$O$_{18}$: Neutron scattering and density functional theory studies
We have investigated the quasi-one dimensional Ni-chain compound PbMn$_2$Ni$_6$Te$_2$O$_{18}$ using theoretical DFT calculations, inelastic neutron scattering and optical spectroscopy in order to understand the nature of magnetic exchange interactions. Our inelastic neutron scattering study at 5 K on a powder sample reveals two bands of magnetic excitations, the first near 8 meV and the second near 18 meV originating from the antiferromagnetic zone center near $Q$ = 1~Å. On the other hand at 1…

Stability of Stochastically Driven Couette Flow in 2D with Navier Boundary Conditions at high Reynolds number via Averaging Principle
Ryan Arbon, Jacob Bedrossian
https://arxiv.org/abs/2506.08769

Stability of Stochastically Driven Couette Flow in 2D with Navier Boundary Conditions at high Reynolds number via Averaging Principle
We characterize the behavior of stochastic Navier-Stokes on $\mathbb{T} \times [-1,1]$ with Navier boundary conditions at high Reynolds number when initialized near Couette flow subject to small additive stochastic forcing. We take additive noise of strength $ν^{1/2+} ΦdV_t + ν^{2/3+α} ΨdW_t$, where $ΦdV_t$ has spatial correlation in $H_0^3$ and acts only on $x$-independent modes of the vorticity, while $ΨdW_t$ has spatial correlation in a lower order, anisotropic, Sobolev space $\mathca…

Bootstrapping form factor squared in ${\cal N}=4$ super-Yang-Mills
Song He, Xiang Li, Jingwen Lin, Jiahao Liu, Kai Yan
https://arxiv.org/abs/2506.07796 htt…

Bootstrapping form factor squared in ${\cal N}=4$ super-Yang-Mills
We propose a bootstrap program for the {\it form factor squared} with operator ${\rm tr}(ϕ^2)$ in maximally supersymmetric Yang-Mills theory in the planar limit, which plays a central role for perturbative calculations of important physical observables such as energy correlators. The tree-level $N$-point form factor (FF) squared can be obtained by cutting $N$ propagators of a collection of two-point ``master diagrams" at $(N{-}1)$ loops: for $N=3,4,5,6$ there are merely $1, 2, 4, 13$ topologie…

The $3$-sparsity of $X^n-1$ over finite fields
Kaimin Cheng
https://arxiv.org/abs/2507.06655 https://arxiv.org/pdf/2507.06655

The $3$-sparsity of $X^n-1$ over finite fields
Let $q$ be a prime power and $\mathbb{F}_q$ the finite field with $q$ elements. For a positive integer $n$, the binomial $f_n(X):= X^n-1\in\mathbb{F}_q[X]$ is called $3$-sparse over $\mathbb{F}_q$ if each irreducible factor of $f_n(X)$ over $\mathbb{F}_q$ is either a binomial or a trinomial. In 2021, Oliveira and Reis characterized all positive integers $n$ for which $f_n(X)$ is $3$-sparse over $\mathbb{F}_q$ when $q = 2$ and $q = 4$, and posed the open problem of whether, for any given $q$, th…

Even if “AI” worked (it doesn’t), there’s many reasons why you shouldn’t use it:
1. It’s destroying Internet sites that you love as you use chat bots instead of actually going to sources of information—this will cause them to be less active and eventually shut down.
2. Pollution and water use from server farms cause immediate harm; often—just like other heavy industry—these are built in underprivileged communities and harming poor people. Without any benefits as the big tech companies get tax breaks and don’t pay for power, while workers aren’t from the community but commute in.
3. The basic underlying models of any LLM rely on stolen data, even when specific extra data is obtained legally. Chatbots can’t learn to speak English just by reading open source code.
4. You’re fueling a speculation bubble that is costing many people their jobs—because the illusion of “efficiency” is kept up by firing people and counting that as profit.
5. Whenever you use the great cheat machine in the cloud you’re robbing yourself from doing real research, writing or coding—literally atrophying your brain and making you stupider.
It’s a grift, through and through.

An improved construction for the triangle removal lemma
Zach Hunter
https://arxiv.org/abs/2507.05231 https://arxiv.org/pdf/2507.05231…

An improved construction for the triangle removal lemma
We construct $n$-vertex graphs $G$ where $εn^2$ edges must be deleted to become triangle-free, which contain less than $ε^{(C_{\text{new}}-o(1))\log_2 1/ε}n^3$ triangles for $C_{\text{new}}= \frac{1}{4\log_2(4/3)} \approx 1.6601$. Previously, a bound of the same shape was known, but with $C_{\text{new}}$ replaced by $C_{\text{old}} := C_{\text{new}}/2$. Our construction uses ideas from additive combinatorics, drawing especially from the corners problem, but does not yield new bounds for thos…

Magnetism in $M_{1/3}$NbS$_2$ ($M$ = Fe, V, Mn): insight into intercalated transition-metal dichalcogenides using $\mu$SR
N. P. Bentley, T. L. Breeze, A. Hern\'andez-Meli\'an, T. J. Hicken, B. M. Huddart, F. L. Pratt, A. E. Hall, D. A. Mayoh, G. Balakrishnan, S. J. Clark, T. Lancaster
https://arxiv.org/abs/2506.06111

Magnetism in $M_{1/3}$NbS$_2$ ($M$ = Fe, V, Mn): insight into intercalated transition-metal dichalcogenides using $μ$SR
We present the results of muon-spin relaxation ($μ$SR) measurements of the static and dynamic magnetism of $M_{1/3}$NbS$_2$ ($M$ = Fe, V, Mn), three intercalated transition-metal dichalcogenides. Transitions to long-range magnetic order are observed in all three materials and local magnetic fields at muon sites are compared to dipole field calculations. Measurements on Fe$_{1/3}$NbS$_2$ capture the evolution of two coexisting magnetic phases. In V$_{1/3}$NbS$_2$ we observe a peak in the dynami…

Instanton Moduli, Topology and the Bosonic/Heterotic String Origins
Liang Ma, H. Lu
https://arxiv.org/abs/2507.05351 https://arxiv.or…

Instanton Moduli, Topology and the Bosonic/Heterotic String Origins
We construct new supersymmetric NS(-1)-branes supported by the $SU(2)\times SU(2)$ 't Hooft instantons in ${\cal N}=1$, $D=4$ supergravity. We show that although the magnetic 3-form string flux is invariant under the variation of instanton moduli, the string-frame metric can change topology, giving rise to either $\mathbb R^4$ or the new $\mathbb R\times S^3$ bolt topologies. We uplift the solutions to both heterotic and bosonic strings, where the instanton moduli become parameters of pure geom…

Minimal hypergraph non-jumps
Benedict Randall Shaw
https://arxiv.org/abs/2506.09620 https://arxiv.org/pdf/2506.09620

Minimal hypergraph non-jumps
An $r$-uniform hypergraph, or $r$-graph, has density $|E(G)|/|V(G)^{(r)}|$. We say $α$ is a jump for $r$-graphs if there is some constant $δ=δ(α)$ such that, for each $\varepsilon>0$ and $n\geq r$, any sufficiently large $r$-graph of density at least $\varepsilon$ has a subgraph of order $n$ and density at least $α+δ$. For $r=2$, all $α$ are jumps. For $r\geq 3$, Erdős showed all $[0,\frac{r!}{r^r})$ are jumps, and conjectured all $[0,1)$ are jumps. Since then, a var…

Computation of the Totient Summatory Function
Lucas Augustus Brown
https://arxiv.org/abs/2506.07386 https://arxiv.org/pdf/2506.07386

Computation of the Totient Summatory Function
An algorithm is devised for computing $Φ(n) = ϕ(1) + ϕ(2) + \cdots + ϕ(n)$ in time $\widetildeΘ(n^{2/3})$ and space $\widetildeΘ(n^{1/3})$. The starting point is an existing algorithm based on the Dirichlet hyperbola method and the Mertens function. The algorithm is then used to compute $Φ(10^{19}) = 30396355092701331435065976498046398788$.

Some new congruences on biregular overpartitions
S. Bhowmick, N. K. Meher
https://arxiv.org/abs/2507.01529 https://arxiv.org/pdf/2507…

Some new congruences on biregular overpartitions
Recently, Nadji, Ahmia and Ramírez \cite{Nadji2025} investigate the arithmetic properties of ${\bar B}_{\ell_1,\ell_2}(n)$, the number of overpartitions where no part is divisible by $\ell_1$ or $\ell_2$ with $\gcd(\ell_1,\ell_2)$$=1$ and $\ell_1$,$\ell_2$$>1$. Specifically, they established congruences modulo $3$ and powers of $2$ for the pairs of $(\ell_1,\ell_2)$$\in$$\{(4,3),(4,9),(8,3),(8,9)\}$, using the concept of generating functions, dissection formulas and Smoot's implementation of R…