Results 71 to 80 of about 355,706 (139)

An Euler system for GU(2, 1). [PDF]

open access: yesMath Ann, 2022
Loeffler D, Skinner C, Zerbes SL.
europepmc   +1 more source

Crystallinity for syntomic cohomology, étale cohomology, and algebraic $K$-theory

open access: yes
We prove for $n\geq c-1$ that the functor taking an animated ring $R$ to its mod $(p^c,v_1^{p^n})$ syntomic cohomology factors through the functor $R \mapsto R/p^{c(n+2)}$, a phenomenon we term crystallinity for mod $(p^c,v_1^{p^n})$ syntomic cohomology.
Hahn, Jeremy   +2 more
openaire   +2 more sources

Cohomology and the subgroup structure of a finite soluble group [PDF]

open access: yes
The main topic of this thesis is the discovery and study of a cohomological property of the subgroups called F-normalizers in finite soluble groups; namely, the property that with certain coefficient modules the restriction map in cohomology from a ...
Wilde, Thomas Stephen
core  

The convergent stack

open access: yes
Inspired by Simpson's de Rham stack and Drinfeld's crystalline stack, we develop a stacky approach to convergent cohomology and convergent isocrystals in positive characteristic. To any scheme X over Fp we attach a convergent stack Xconv.
D'Addezio, Marco
core   +4 more sources

Torsion in the crystalline cohomology of singular varieties

open access: yesDocumenta Mathematica, 2014
This paper discusses some examples showing that the crystalline cohomology of even very mildly singular projective varieties tends to be quite large. In particular, any singular projective variety with at worst ordinary double points has infinitely generated crystalline cohomology in at least two cohomological degrees.
openaire   +2 more sources

Brillouin Klein bottle from artificial gauge fields. [PDF]

open access: yesNat Commun, 2022
Chen ZY, Yang SA, Zhao YX.
europepmc   +1 more source

Vanishing results for the cohomology of complex toric hyperplane complements [PDF]

open access: yes
Suppose R is the complement of an essential arrangement of toric hyperlanes in the complex torus and ? = ?1(R). We show that H*(R;A) vanishes except in the top degree n when A is one of the following systems of local coefficients: (a) a system of ...
Simona Settepanella, Mike W. Davis
core  

Digital quantum simulation of Floquet symmetry-protected topological phases. [PDF]

open access: yesNature, 2022
Zhang X   +21 more
europepmc   +1 more source

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