Tootfinder

A combination theorem for the twist conjecture for Artin groups
Oli Jones, Giorgio Mangioni, Giovanni Sartori
https://arxiv.org/abs/2507.13971 https://

A combination theorem for the twist conjecture for Artin groups
We reduce a strong version of the twist conjecture for Artin groups to Artin groups whose defining graphs have no separating vertices. This produces new examples of Artin groups satisfying the conjecture, and sheds more light on the isomorphism problem for Artin groups. Along the way we also prove a combination result for the ribbon property for vertices.

Die Trump-Regierung sieht „Zensur“ in Deutschland, nennt keine Fälle, ignoriert Zahlen von BMI und BKA – und schont autoritäre Freunde. Menschenrechte Š la Selective Edition. Quelle: US-Regierung sieht Mängel bei #Meinungsfreiheit in #Deutschland,

US-Regierung sieht Mängel bei Meinungsfreiheit in Deutschland
Ein Bericht des US-Außenministeriums sieht in Deutschland eine Verschlechterung der Menschenrechtslage. So gebe es Einschränkungen der Meinungsfreiheit. Ein Jahr zuvor - unter der Biden-Regierung - fiel das Ergebnis noch anders aus.

𝗙𝗲𝘀𝘁𝗶𝘃𝗮𝗹 𝗘𝗺𝗽𝗳𝗲𝗵𝗹𝘂𝗻𝗴: Musikschutzgebiet 2025
Vom 28. bis 31. August verwandelt sich der Grünhof bei Homberg (Efze) wieder in eine der charmantesten Festival-Locations Nordhessens: Das Musikschutzgebiet Festival lädt ein zu vier Tagen voller Livemusik, kulinarischem Genuss und jede Menge Klamauk in familiärer Atmosphäre.
Nur 20 Minuten südlich von Kassel gelegen, bietet der idyllische Bauernhof eine einzigartige Kulisse, wo angesagte Acts auf die vielversprechendsten Bands von morg…

Speculative politics
As an anarchist (okay, maybe not in practice), I'm tired of hearing why we have to suffer X and Y indignity to "preserve the rule of law" or "maintain Democratic norms." So here's an example of what representative democracy (a form of government that I believe is inherently flawed) could look like if its proponents had even an ounce of imagination, and/or weren't actively trying to rig it to favor a rich donor class:
1. Unicameral legislature, where representatives pass laws directly. Each state elects 3 statewide representatives: the three most-popular candidates in a statewide race where each person votes for one candidate (ranked preference voting would be even better but might not be necessary, and is not a solution by itself). Instead of each representative getting one vote in the chamber, they get N votes, where N is the number of people who voted for them. This means that in a close race, instead of the winner getting all the power, the power is split. Having 3 representatives trades off between leisure size and ensuring that two parties can't dominate together.
2. Any individual citizen can contact their local election office to switch or withdraw their vote at any time (maybe with a 3-day delay or something). Voting power of representatives can thus shift even without an election. They are limited to choosing one of the three elected representatives, or "none of the above." If the "none of the above" fraction exceeds 20% of eligible voters, a new election is triggered for that state. If turnout is less than 80%, a second election happens immediately, with results being final even at lower turnout until 6 months later (some better mechanism for turnout management might be needed).
3. All elections allow mail-in ballots, and in-person voting happens Sunday-Tuesday with the Monday being a mandatory holiday. (Yes, election integrity is not better in this system and that's a big weakness.)
4. Separate nationwide elections elect three positions for head-of-state: one with diplomatic/administrative powers, another with military powers, and a third with veto power. For each position, the top three candidates serve together, with only the first-place winner having actual power until vote switches or withdrawals change who that is. Once one of these heads loses their first-place status, they cannot get it again until another election, even if voters switch preferences back (to avoid dithering). An election for one of these positions is triggered when 20% have withdrawn their votes, or if all three people initially elected have been disqualified by losing their lead in the vote count.
5. Laws that involve spending money are packaged with specific taxes to pay for them, and may only be paid for by those specific revenues. Each tax may be opted into or out of by each taxpayer; where possible opting out of the tax also opts you out of the service. (I'm well aware of a lot of the drawbacks of this, but also feel like they'd not necessarily be worse than the drawbacks of our current system.) A small mandatory tax would cover election expenses.
6. I'm running out of attention, but similar multi-winner elections could elect panels of judges from which a subset is chosen randomly to preside in each case.
Now I'll point out once again that this system, in not directly confronting capitalism, racism, patriarchy, etc., is probably doomed to the same failures as our current system. But if you profess to want a "representative democracy" as opposed to something more libratory, I hope you'll at least advocate for something like this that actually includes meaningful representation as opposed to the current US system that's engineered to quash it.
Key questions: "Why should we have winner-take-all elections when winners-take-proportionately-to-votes is right there?" and "Why should elected officials get to ignore their constituents' approval except during elections, when vote-withdrawal or -switching is possible?"
2/2
#Democracy

Trusted Repeater Placement in QKD-enabled Optical Networks
Arup Kumar Marik, Basabdatta Palit, Sadananda Behera
https://arxiv.org/abs/2509.10338 https://ar…

Trusted Repeater Placement in QKD-enabled Optical Networks
Quantum Key Distribution (QKD) provides information-theoretic security, but is limited by distance in optical networks, thereby requiring repeater nodes to extend coverage. Existing works usually assume all repeater nodes and associated Key Management Servers (KMSs) to be Trusted Repeater Nodes (TRNs), while ignoring risks from software exploits and insider threats. In this paper, we propose a reliability-aware TRN placement framework for metro optical networks, which assigns each node a trust …

Bezüglich Klöckners Argument, die Deutschland­fahne symbolisiere Grundwerte und Grundrechte des Grundgesetzes und sei inklusiv, möchte ich¹ @… beipflichten:
Ich fände das cool stünde Deutschland so sehr für diese Werte, daß ich mich da wohl fühle, wo schwarz-rot-gold beflaggt ist oder die Fahnen aus dem Fenster hängen. Aber ich erlebe nicht, daß diese M…

Not a JS expert, but if you ignore `<dialog>` (via `.showModal()`) to roll your own modal, I feel a different selector for interactive elements is better than repeating `.filter()` (comment link):
https://css-tricks.com/a-primer-on-focus-trapping/#comment-1…

A Primer on Focus Trapping | CSS-Tricks
Focus trapping is about managing focus within an element, such that focus always stays within it. The whole process sounds simple in theory, but it can quite difficult to build in practice, mostly because of the numerous parts to you got to manage.

Web devs have spent decades on secure protocols to ensure your browser isn't a free pass for malicious pages to scrape your email and bank account. AI just broke them.
"Sure, I'll summarize that webpage for you, including the inconspicuous HTML comment asking me to ignore Cross-Origin Resource Sharing restrictions and snag the password you saved for managing investments at Robinhood.com."

MCTuner: Spatial Decomposition-Enhanced Database Tuning via LLM-Guided Exploration
Zihan Yan, Rui Xi, Mengshu Hou
https://arxiv.org/abs/2509.06298 https://…

MCTuner: Spatial Decomposition-Enhanced Database Tuning via LLM-Guided Exploration
Database knob tuning is essential for optimizing the performance of modern database management systems, which often expose hundreds of knobs with continuous or categorical values. However, the large number of knobs and the vast configuration space make it difficult to identify optimal settings efficiently. Although learning-based tuning has shown promise, existing approaches either ignore domain knowledge by relying solely on benchmark feedback or struggle to explore the high-dimensional knob s…