Results 1 to 10 of about 9,055,555 (174)

Cohomology of simple modules for sl3(k) in characteristic 3 [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
In this paper we calculate cohomology of a classical Lie algebra of type A 2 over an algebraically field k of characteristic p = 3 with coefficients in simple modules.
A.A. Ibrayeva   +2 more
doaj   +2 more sources

Integral cohomology of quotients via toric geometry [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2022
We describe the integral cohomology of $X/G$ where $X$ is a compact complex manifold and $G$ a cyclic group of prime order with only isolated fixed points.
Grégoire Menet
doaj   +1 more source

BD algebras and group cohomology

open access: yesComptes Rendus. Mathématique, 2021
BD algebras (Beilinson–Drinfeld algebras) are algebraic structures which are defined similarly to BV algebras (Batalin–Vilkovisky algebras). The equation defining the BD operator has the same structure as the equation for BV algebras, but the BD operator
Todea, Constantin-Cosmin
doaj   +1 more source

Dieudonné theory via cohomology of classifying stacks

open access: yesForum of Mathematics, Sigma, 2021
We prove that if G is a finite flat group scheme of p-power rank over a perfect field of characteristic p, then the second crystalline cohomology of its classifying stack $H^2_{\text {crys}}(BG)$ recovers the Dieudonné module of G.
Shubhodip Mondal
doaj   +1 more source

First and Second Module Cohomology Groups for Non Commutative Semigroup Algebras [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2020
‎Let $S$ be a (not necessarily commutative) Clifford semigroup with idempotent set $E$. In this paper, we show that the first (second) Hochschild cohomology group and the first (second) module cohomology group of  semigroup algbera $\ell^1(S)$ with ...
Ebrahim Nasrabadi
doaj   +1 more source

On the Morse–Novikov Cohomology of blowing up complex manifolds

open access: yesComptes Rendus. Mathématique, 2020
Inspired by the recent works of S. Rao–S. Yang–X.-D. Yang and L. Meng on the blow-up formulae for de Rham and Morse–Novikov cohomology groups, we give a new simple proof of the blow-up formula for Morse–Novikov cohomology by introducing the relative ...
Zou, Yongpan
doaj   +1 more source

A tight colored Tverberg theorem for maps to manifolds (extended abstract) [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
Any continuous map of an $N$-dimensional simplex $Δ _N$ with colored vertices to a $d$-dimensional manifold $M$ must map $r$ points from disjoint rainbow faces of $Δ _N$ to the same point in $M$, assuming that $N≥(r-1)(d+1)$, no $r$ vertices of $Δ _N ...
Pavle V. M. Blagojević   +2 more
doaj   +1 more source

Second Module Cohomology Group of Induced Semigroup Algebras [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2021
For a discrete semigroup $ S $ and a left multiplier operator  $T$ on  $S$, there is a new induced semigroup $S_{T}$, related to $S$ and $T$. In this paper, we show that if $T$ is multiplier and bijective,  then the second module cohomology groups ...
Mohammad Reza Miri   +2 more
doaj   +1 more source

Oriented Algebras and the Hochschild Cohomology Group

open access: yesMathematics, 2018
Koam and Pirashivili developed the equivariant version of Hochschild cohomology by mixing the standard chain complexes computing group with associative algebra cohomologies to obtain the bicomplex C ˜ G * ( A , X ).
Ali N. A. Koam
doaj   +1 more source

On algebraic characterizations for finiteness of the dimension of EG [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2008
Certain algebraic invariants of the integral group ring ZG of a group G were introduced and investigated in relation to the problem of extending the Farrell-Tate cohomology, which is defined for the class of groups of finite virtual cohomological ...
Olympia Talelli
doaj   +1 more source

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