Tootfinder

Als vor gut zehn Jahren der Journalist und LGBTQ -Aktivst Eric Lembembe in seiner Wohnung in Jaunde ermordet wird, beginnt der in Kamerun geborene Berliner Regisseur Appolain Siewe sich mit der grassierenden Homophobie in Kamerun zu beschäftigen. Sein Dokumentarfilm CODE DER ANGST zeigt Siewes Versuch, die Ursachen des Hasses zu verstehen.

Doku über Homosexualität in Kamerun: Suchen gegen alle Widerstände
Wer sich engagiert, muss mit Repression rechnen: Der Dokumentarfilm „Code der Angst“ von Appolain Siewe geht der Homophobie in Kamerun nach.

A class of (infinite-dimensional) cosemisimple Hopf algebras constructed via abelian extensions
Jing Yu, Gongxiang Liu, Kun Zhou, Xiangjun Zhen
https://arxiv.org/abs/2506.04008

A class of (infinite-dimensional) cosemisimple Hopf algebras constructed via abelian extensions
In this paper, we aim to study abelian extensions for some infinite group. We show that the Hopf algebra $\Bbbk^G{}^τ\#_σ\Bbbk F$ constructed through abelian extensions of $\Bbbk F$ by $\Bbbk^G$ for some (infinite) group $F$ and finite group $G$ is cosemisimple, and discuss when it admits a compact quantum group structure if $\Bbbk$ is the field of complex numbers $\mathbb{C}.$ We also find all the simple $\Bbbk^G{}^τ\#_σ\Bbbk F$-comodules and attempt to determine the Grothendieck ring of t…

Combinatorial $t$-Designs from Finite Abelian Groups and Their Applications to Elliptic Curve Codes
Hengfeng Liu, Chunming Tang, Cuiling Fan, Rong Luo
https://arxiv.org/abs/2506.00429

Combinatorial $t$-Designs from Finite Abelian Groups and Their Applications to Elliptic Curve Codes
In this paper, we establish the conditions for some finite abelian groups and the family all the $k$-sets in each of them summing up to an element $x$ to form $t$-designs. We fully characterize the sufficient and necessary conditions for the incidence structures to form $1$-designs in finite abelian $p$-groups, generalizing existing results on vector spaces over finite fields. For finite abelian groups of exponent $pq$, we also propose sufficient and necessary conditions for the incidence struc…

Families of Green rings for abelian restricted Lie algebras
Justin Bloom
https://arxiv.org/abs/2506.02388 https://arxiv.org/pdf/2506.…

Families of Green rings for abelian restricted Lie algebras
We find equivalent conditions determining the representation type of abelian restricted Lie algebras in terms of how their Green ring of restricted representations varies with respect to different cocommutative Hopf algebra structures on its restricted universal enveloping algebra. Each compatible cocommutative Hopf algebra structure on a tame algebra is shown to have a correspondence between a certain set of Hopf subalgebras, and the set of minimal thick tensor-ideals having identical ring str…

No such thing as a slow cybersecurity news day anymore, so don't miss today's Metacurity for the critical infosec developments you should know, including
--Top cyber vendors hope to clean up crazy threat group naming practices,
--Coinbase knew of data leak in January,
--Prolific swatter pleads guilty,
--Cartier confirms data breach,
--Abilene gropes for recovery after rejecting ransom payment,
--North Face customers' data stolen in credential s…

Top cyber vendors hope to clean up crazy threat group naming practices
Coinbase knew of data leak in January, Prolific swatter pleads guilty, Cartier confirms data breach, Abilene gropes for recovery after rejecting ransom payment, North Face customers' data stolen in credential stuffing attacks, $11.5m stolen from BitoPro hot wallets, much more

Testing strong-field QED with the avalanche precursor
A. A. Mironov, S. S. Bulanov, A. Di Piazza, M. Grech, L. Lancia, S. Meuren, J. Palastro, C. Riconda, H. G. Rinderknecht, P. Tzeferacos, G. Gregori
https://arxiv.org/abs/2506.02832

Testing strong-field QED with the avalanche precursor
A two-beam high-power laser facility is essential for the study of one of the most captivating phenomena predicted by strong-field quantum electrodynamics (QED) and yet unobserved experimentally: the avalanche-type cascade. In such a cascade, the energy of intense laser light can be efficiently transformed into high-energy radiation and electron-positron pairs. The future 50-petawatt-scale laser facility NSF OPAL will provide unique opportunities for studying such strong-field QED effects, as i…

On the distribution of the number of distinct generators of h-free and h-full elements in an abelian monoid
Sourabhashis Das, Wentang Kuo, Yu-Ru Liu
https://arxiv.org/abs/2506.01030

On the distribution of the number of distinct generators of h-free and h-full elements in an abelian monoid
This work introduces the first in-depth study of h-free and h-full elements in abelian monoids, providing a unified approach for understanding their role in various mathematical structures. Let m be an element of an abelian monoid, with ω(m) denoting the number of distinct prime elements generating m. We study the moments of ω(m) over subsets of h-free and h-full elements, establishing the normal order of ω(m) within these subsets. Our findings are then applied to number fields, global funct…

120gCO2/kWh National Grid CO2 intensity so-so wrt last 24h so don't run big appliances now if you can wait. #CO2

GB Grid Intensity Status - Earth Notes
Live marginal carbon intensity of the grid in Great Britain.

Generalizations of Erd\H{o}s-Kac theorem with applications
Sourabhashis Das, Wentang Kuo, Yu-Ru Liu
https://arxiv.org/abs/2506.02432 https://

Generalizations of Erdős-Kac theorem with applications
Let $ω(n)$ denote the number of distinct prime factors of a natural number $n$. In 1940, Erdős and Kac established that $ω(n)$ obeys the Gaussian distribution over natural numbers, and in 2004, the third author generalized their theorem to all abelian monoids. In this paper, we extend her theorem to any subsets of an abelian monoid satisfying some additional conditions, and apply this result to the subsets of $h$-free and $h$-full elements. We study generalizations of several arithmetic func…

88gCO2/kWh National Grid CO2 intensity so-so wrt last 24h so don't run big appliances now if you can wait. #CO2

GB Grid Intensity Status - Earth Notes
Live marginal carbon intensity of the grid in Great Britain.