Results 1 to 10 of about 21,041 (225)

On the Hochschild cohomology theory of A∞-algebra

open access: goldScientific African, 2019
We will study the simplicial (co)homology for Hochschild complex for A∞–algebra with homotopical properties. The relations which relate a simplicial cohomology of commutative A∞-algebra and the set twisted cochain D(A, A), of this complex holds and ...
Alaa Hassan Noreldeen
doaj   +2 more sources

Cellular Cohomology in Homotopy Type Theory [PDF]

open access: yesLogical Methods in Computer Science, 2020
We present a development of cellular cohomology in homotopy type theory. Cohomology associates to each space a sequence of abelian groups capturing part of its structure, and has the advantage over homotopy groups in that these abelian groups of many ...
Ulrik Buchholtz, Kuen-Bang Hou
doaj   +1 more source

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

Coarse Sheaf Cohomology

open access: yesMathematics, 2023
A certain Grothendieck topology assigned to a metric space gives rise to a sheaf cohomology theory which sees the coarse structure of the space. Already constant coefficients produce interesting cohomology groups. In degree 0, they see the number of ends
Elisa Hartmann
doaj   +1 more source

On Cohomology Groups of Four-Dimensional Nilpotent Associative Algebras

open access: yesمجلة بغداد للعلوم, 2022
The study of cohomology groups is one of the most intensive and exciting researches that arises from algebraic topology. Particularly, the dimension of cohomology groups is a highly useful invariant which plays a rigorous role in the geometric ...
N. F. Mohammed   +2 more
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

From β to η: a new cohomology for deformed Sasaki-Einstein manifolds

open access: yesJournal of High Energy Physics, 2022
We discuss in detail the different analogues of Dolbeault cohomology groups on Sasaki-Einstein manifolds and prove a new vanishing result for the transverse Dolbeault cohomology groups H ∂ ¯ p 0 k $$ {H}_{\overline{\partial}}^{\left(p,0\right)}(k ...
Edward Lødøen Tasker
doaj   +1 more source

Cohomologies of n-Lie Algebras with Derivations

open access: yesMathematics, 2021
The goal of this paper is to study cohomological theory of n-Lie algebras with derivations. We define the representation of an n-LieDer pair and consider its cohomology.
Qinxiu Sun, Zhixiang Wu
doaj   +1 more source

Splitting Extensions of Nonassociative Algebras and Modules with Metagroup Relations

open access: yesAxioms, 2022
A class of nonassociative algebras is investigated with mild relations induced from metagroup structures. Modules over nonassociative algebras are studied. For a class of modules over nonassociative algebras, their extensions and splitting extensions are
Sergey Victor Ludkowski
doaj   +1 more source

On Rham cohomology of locally trivial Lie groupoids over triangulated manifolds

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2020
Based on the isomorphism between Lie algebroid cohomology and piecewise smooth cohomology of a transitive Lie algebroid, it is proved that the Rham cohomology of a locally trivial Lie groupoid G on a smooth manifold M is isomorphic to the piecewise Rham ...
Jose R. Oliveira
doaj   +1 more source

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