Tootfinder

This https://arxiv.org/abs/2501.14274 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Exotic proper actions on homogeneous spaces via convex cocompact representations
We construct a series of homogeneous spaces G/H of reductive type which admit proper actions of discrete subgroups of G isomorphic to cocompact lattices of O(n,1) (n=2,3,4) but do not admit proper actions of non-compact semisimple subgroups of G. The existence of such homogeneous spaces was previously not known even for n=2. Our construction of proper actions of discrete subgroups is based on Guéritaud-Kassel's work on convex cocompact subgroups of O(n,1) and Danciger-Guéritaud-Kassel's work …

Salmonella Outbreak Linked to Cucumbers Sickens 45 People (Isabella Kwai/New York Times)
https://www.nytimes.com/2025/05/31/health/cucumbers-recall-salmonella-outbreak.html
http://www.memeorandum.com/250531/p33#a250531p33

HiFiTTS-2: A Large-Scale High Bandwidth Speech Dataset
Ryan Langman, Xuesong Yang, Paarth Neekhara, Shehzeen Hussain, Edresson Casanova, Evelina Bakhturina, Jason Li
https://arxiv.org/abs/2506.04152

HiFiTTS-2: A Large-Scale High Bandwidth Speech Dataset
This paper introduces HiFiTTS-2, a large-scale speech dataset designed for high-bandwidth speech synthesis. The dataset is derived from LibriVox audiobooks, and contains approximately 36.7k hours of English speech for 22.05 kHz training, and 31.7k hours for 44.1 kHz training. We present our data processing pipeline, including bandwidth estimation, segmentation, text preprocessing, and multi-speaker detection. The dataset is accompanied by detailed utterance and audiobook metadata generated by o…

This https://arxiv.org/abs/2503.20759 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Surface Subgroups for Cocompact Lattices of Isometries of $H^{2n}$
We prove the existence of surface subgroups within any cocompact lattice $Γ$ in $\mathrm{SO}(2n,1)$ for $n\geq2$. This result addresses the cases missing from the work of Hamenstädt in 2015, who constructed surface subgroups in cocompact lattices for all other rank-one semisimple Lie groups of non-compact type.

I for one am intrigued by the out of the box blue sky thinking of those who suggest moving Europe's IP registry to the United Arab Emirates or Qatar for their international openness and cosmopolitan approach to sanctions.
If I wasn't already subscribed to their newsletter, I'd subscribe again,

Observation of the Crab Nebula with the Single-Mirror Small-Size Telescope stereoscopic system at low altitude
C. Alispach, A. Araudo, M. Balbo, V. Beshley, J. Bla\v{z}ek, J. Borkowski, S. Boula, T. Bulik, F. Cadoux, S. Casanova, A. Christov, J. Chudoba, L. Chytka, P. \v{C}echvala, P. D\v{e}dic, D. della Volpe, Y. Favre, M. Garczarczyk, L. Gibaud, T. Gieras, E. G{\l}owacki, P. Hamal, M. Heller, M. Hrabovsk\'y, P. Jane\v{c}ek, M. Jel\'inek, V. J\'ilek, J. Jury\v{s}ek, V. Kar…

Observation of the Crab Nebula with the Single-Mirror Small-Size Telescope stereoscopic system at low altitude
The Single-Mirror Small-Size Telescope (SST-1M) stereoscopic system is composed of two Imaging Atmospheric Cherenkov Telescopes (IACTs) designed for optimal performance for gamma-ray astronomy in the multi-TeV energy range. It features a 4-meter-diameter tessellated mirror dish and an innovative SiPM-based camera. Its optical system features a 4-m diameter spherical mirror dish based on the Davies-Cotton design, maintaining a good image quality over a large FoV while minimizing optical aberrati…

A Fox-Neuwirth Basis for the Sinha Spectral Sequence
Andrea Marino
https://arxiv.org/abs/2505.22958 https://arxiv.org/pdf/2505.22958

A Fox-Neuwirth Basis for the Sinha Spectral Sequence
Recently, Sinha defined a spectral sequence approximating the (co)homology of the space of long knots in R^m modulo immersions, stemming from a cosimplicial structure on the compactified configuration spaces à la Kontsevich. We provide an equivalent cosimplicial structure on (the barycentric subdivision of) a regular CW complex with cells indexed by Fox-Neuwirth trees. As a corollary, we give a combinatorial presentation of the Sinha Spectral Sequence in terms of Fox-Neuwirth trees for all dim…

This https://arxiv.org/abs/2411.16261 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Almost-Fuchsian representations in PU(2,1)
In this paper, we study nonmaximal representations of surface groups in PU(2,1). In genus large enough, we show the existence of convex-cocompact representations of non-maximal Toledo invariant admitting a unique equivariant minimal surface, which is holomorphic and almost totally geodesic. These examples can be obtained for any Toledo invariant of the form 2-2g +2/3 d, provided g is large compared to d. When d is not divisible by 3, this yields examples of convex-cocompact representations in P…

Cucumber rolls are known as kappamaki. But official anime subtitles can never have translator's notes I guess, so instead the audience is just left with a nonsensical line.

This https://arxiv.org/abs/2304.02570 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Purely pseudo-Anosov subgroups of the genus two handlebody group
We prove that finitely generated, purely pseudo-Anosov subgroups of the genus $2$ handlebody group are convex cocompact.