Zobrazeno 1 - 10
of 30 813
pro vyhledávání: '"positive characteristic"'
We prove that in regular $F$-finite rings of positive characteristic, the Bernstein-Sato root set of the tensor product of ideals is the union of their respective Bernstein-Sato root sets. Moreover, by computing some special $F$-thresholds, we provid
Externí odkaz:
http://arxiv.org/abs/2410.20188
Autor:
Ishii, Shihoko
We study a pair consisting of a smooth variety over a field of positive characteristic and a multi-ideal with a real exponent. We prove the finiteness of the set of minimal log discrepancies for a fixed exponent if the dimension is less than or equal
Externí odkaz:
http://arxiv.org/abs/2410.15291
Autor:
Bernasconi, Fabio
We survey some of the recent works on the geometry of del Pezzo surfaces over imperfect fields, with applications to 3-dimensional del Pezzo fibrations in positive characteristic. We place particular emphasis on cases where the general fibres of the
Externí odkaz:
http://arxiv.org/abs/2412.12090
Autor:
Valloni, Domenico
In this article, we define supersingular Brauer classes in positive characteristic and study their role in the Brauer-Manin obstruction. We relate this notion to the Brauer group of supersingular K3 surfaces and use our results to study the Brauer-Ma
Externí odkaz:
http://arxiv.org/abs/2412.01785
Let $F$ be a locally compact non-Archimedean field, and $\bf G$ a connected quasi-split reductive group over $F$. We are interested in complex irreducible smooth generic representations $\pi$ of ${\bf G}(F)$. When $F$ has positive characteristic, we
Externí odkaz:
http://arxiv.org/abs/2412.00229
Autor:
Schoemann, Claudia, Werner, Skylar
Let $k$ be an uncountable algebraically closed filed of positive characteristic and let $S_0$ be a connected smooth projective surface over $k$. We extend the theorem on the Gysin kernel from [28, Theorem 5.1] to also be true over $k$, where it was p
Externí odkaz:
http://arxiv.org/abs/2411.11417
We investigate deformations of skew group algebras that arise from a finite cyclic group acting on a polynomial ring in positive characteristic, where characteristic divides the order of the group. We allow deformations which deform both the group ac
Externí odkaz:
http://arxiv.org/abs/2411.05181
Let $A=A_1\oplus\cdots\oplus A_r$ be a decomposition of the algebra $A$ as a direct sum of vector subspaces. If for every choice of the indices $1\le i_j\le r$ there exist $a_{i_j}\in A_{i_j}$ such that the product $a_{i_1}\cdots a_{i_n}\ne 0$, and f
Externí odkaz:
http://arxiv.org/abs/2410.13600