Tootfinder

Voorvechter van vrijheid van meningsuiting eist spreekverbod voor Nederlander.
3 keer raden welke Amerikaanse techmiljardair de vrijheid van meningsuiting niet zo absoluut vind als het om z'n eigen belangen gaat... https://www.nrc.nl/nieuws/2025/09/22/x-eis

The Hom-Ext quiver and applications to exceptional collections
Kiyoshi Igusa, Ray Maresca
https://arxiv.org/abs/2509.16388 https://arxiv.org/pdf/2509.16388…

The Hom-Ext quiver and applications to exceptional collections
We study what we call the Hom-Ext quiver and characterize it as a type of 'superquiver'. In type $\widetilde{\mathbb{A}}$, the Hom-Ext quiver of an exceptional set is the tiling algebra of the corresponding geometric model. And, in that case, Hom-Ext quivers classify exceptional sets up to Dehn twist of the corresponding geometric model. We show that these Dehn twists are realized by twist functors and give autoequivalences of the derived category. We provide a generating set for the group of a…

On the Viability of Weak Energy Condition Violation in Parity-Violating Electrodynamics
Tao Huang
https://arxiv.org/abs/2509.18188 https://arxiv.org/pdf/25…

The far right is surging in the United States,
driven in part by white nationalists exploiting economic anxieties
and a populace increasingly frustrated with the political status quo.
Now, as the Trump administration rolls back diversity, equity and inclusion policies,
cracks down on immigration and offers pardons to white supremacists,
some see an opening.
In creating their community, the founders of "Return to the Land" are challenging anti-d…

Arkansas Housing Development Restricted to White Residents Sparks Legal Concerns
Housing rights experts say a community restricted to white residents is illegal, but the creators believe they could win a potential challenge in court in the current political climate.

Experiences of Commercial Supercomputing in Radio Astronomy Data Processing
Ian Kemp, Steven J Tingay, Stuart Midgley, Daniel Mitchell
https://arxiv.org/abs/2509.17657 https://

Experiences of Commercial Supercomputing in Radio Astronomy Data Processing
The ongoing exponential growth of computational power, and the growth of the commercial High Performance Computing (HPC) industry, has led to a point where ten commercial systems currently exceed the performance of the highest-used HPC system in radio astronomy in Australia, and one of these exceeds the expected requirements of the Square Kilometre Array (SKA) Science Data Processors. In order to explore implications of this emerging change in the HPC landscape for radio astronomy, we report …

One-loop determinants in AdS$_3$ supergravity with extended supersymmetry
Ilija Rakic, Lorenzo Toni
https://arxiv.org/abs/2508.15701 https://arxiv.org/pdf/…

One-loop determinants in AdS$_3$ supergravity with extended supersymmetry
We re-examine the computation of the one-loop partition function of Type II supergravity theory compactified on $AdS_3 \times \mathbf{S}^3 \times X$, where $X$ can be $K_3$, $T^4$ and $\mathbf{S}^3 \times \mathbf{S}^1$. These backgrounds preserve eight supercharges (four left and four right moving) and are known to be holographically dual to either small or large $N=(4,4)$ superconformal field theories. By extending well-established heat kernel techniques, we evaluate the one-loop determinants …

Findem, an AI-powered talent acquisition startup, raised $51M in equity and debt, including a $36M Series C led by SLW, taking its total funding to $105M (Mary Ann Azevedo/Crunchbase News)
https://news.crunchbase.com/ai/findem-funding-ai-powered-hiring-re…

Exclusive: Findem Lands $36M Series C To Supercharge AI-Powered Hiring 
Findem is just one of more than a dozen startups at the intersection of AI and recruitment globally that has raised venture capital in 2025.

Oh, did you think the israel model would be confined to the Middle East? Why should it? Didn’t all our Western governments just declare it kosher?
First, they came for the Palestinians… https://kolektiva.social/@DoomsdaysCW/115034832497483253

Floortje Dessing was op de Westelijke Jordaanoever: ‘Wat je hier ziet, is met niks te vergelijken’ | #Gelderlander.nl
https://www.ad.nl/bui…

Nonlinear evolution of the spin-2 black hole superradiant instability
Taillte May, William E. East
https://arxiv.org/abs/2509.13488 https://arxiv.org/pdf/2…

Nonlinear evolution of the spin-2 black hole superradiant instability
Massive spin-2 fields, which arise in proposed extensions of the standard model of particle physics and general relativity, give rise to a superradiant instability around spinning black holes. We study the nonlinear evolution of this instability in quadratic gravity, where quadratic curvature terms are added to the Einstein-Hilbert action. We find that as the massive spin-2 field grows, the black hole's spin increases, accelerating the growth rate, and eventually leading to a superextremal hori…