Results 31 to 40 of about 116,310 (177)

Equivariant Lie–Rinehart cohomology; pp. 294–300 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2010
In this paper we study Lie–Rinehart cohomology for quotients of singularities by finite groups, and interpret these cohomology groups in terms of integrable connection on modules.
Eivind Eriksen, Trond Stølen Gustavsen
doaj   +1 more source

Motives with modulus, II: Modulus sheaves with transfers for proper modulus pairs [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2021
We develop a theory of sheaves and cohomology on the category of proper modulus pairs. This complements [KMSY21], where a theory of sheaves and cohomology on the category of non-proper modulus pairs has been developed.
Bruno Kahn   +3 more
doaj   +1 more source

Maximal equicontinuous factors and cohomology for tiling spaces [PDF]

open access: yes, 2012
We study the homomorphism induced on cohomology by the maximal equicontinuous factor map of a tiling space. We will see that this map is injective in degree one and has torsion free cokernel.
Barge, Marcy   +2 more
core   +3 more sources

Cohomology Theory of Nonassociative Algebras with Metagroup Relations

open access: yesAxioms, 2019
Nonassociative algebras with metagroup relations and their modules are studied. Their cohomology theory is scrutinized. Extensions and cleftings of these algebras are studied. Broad families of such algebras and their acyclic complexes are described. For
Sergey V. Ludkowski
doaj   +1 more source

Integration of simplicial forms and Deligne cohomology

open access: yes, 2004
We present two approaches to constructing an integration map for smooth Deligne cohomology. The first is defined in the simplicial model, where a class in Deligne cohomology is represented by a simplicial form, and the second in a related but more ...
Deligne Cohomology   +5 more
core   +3 more sources

Periodic cohomology [PDF]

open access: yesHomology, Homotopy and Applications, 2008
We offer a direct proof of an elementary result concerning cohomological periods. As a corollary we show that given a finitely generated stably free resolution of Z over a finite group, two of its modules are free.
openaire   +4 more sources

On Schubert calculus in elliptic cohomology [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
An important combinatorial result in equivariant cohomology and $K$-theory Schubert calculus is represented by the formulas of Billey and Graham-Willems for the localization of Schubert classes at torus fixed points.
Cristian Lenart, Kirill Zainoulline
doaj   +1 more source

A New Cohomology Theory for Orbifold

open access: yes, 2001
Motivated by orbifold string theory, we introduce orbifold cohomology group for any almost complex orbifold and orbifold Dolbeault cohomology for any complex orbifold.
Baily   +12 more
core   +1 more source

Tate and Tate-Hochschild Cohomology for finite dimensional Hopf Algebras

open access: yes, 2013
Let A be any finite dimensional Hopf algebra over a field k. We specify the Tate and Tate-Hochschild cohomology for A and introduce cup products that make them become graded rings. We establish the relationship between these rings.
Nguyen, Van C.
core   +1 more source

En–cohomology with coefficients as functor cohomology [PDF]

open access: yesAlgebraic & Geometric Topology, 2016
Building on work of Livernet and Richter, we prove that E_n-homology and E_n-cohomology of a commutative algebra with coefficients in a symmetric bimodule can be interpreted as functor homology and cohomology. Furthermore we show that the associated Yoneda algebra is trivial.
openaire   +3 more sources

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