Results 51 to 60 of about 21,041 (225)

Nijenhuis Operators and Abelian Extensions of Hom-δ-Jordan Lie Supertriple Systems

open access: yesMathematics, 2023
Representations and cohomologies of Hom-δ-Jordan Lie supertriple systems are established. As an application, Nijenhuis operators and abelian extensions of Hom-δ-Jordan Lie supertriple systems are discussed.
Qiang Li, Lili Ma
doaj   +1 more source

$L^\infty$ cohomology is intersection cohomology

open access: yes, 2009
Let $X$ be any subanalytic compact pseudomanifold. We show a De Rham theorem for $L^\infty$ forms. We prove that the cohomology of $L^\infty$ forms is isomorphic to intersection cohomology in the maximal perversity.
openaire   +4 more sources

Stochastic equivariant cohomologies and cyclic cohomology

open access: yesThe Annals of Probability, 2005
We give two stochastic diffeologies on the free loop space which allow us to define stochastic equivariant cohomology theories in the Chen-Souriau sense and to establish a link with cyclic cohomology. With the second one, we can establish a stochastic fixed point theorem.
openaire   +4 more sources

A note on the cohomology of moduli spaces of local shtukas

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 12, Page 3709-3729, December 2025.
Abstract We study localized versions of spectral action of Fargues–Scholze, using methods from higher algebra. As our main motivation and application, we deduce a formula for the cohomology of moduli spaces of local shtukas under certain genericity assumptions, and discuss its relation with the Kottwitz conjecture.
David Hansen, Christian Johansson
wiley   +1 more source

Generalized representations of 3-Hom-Lie algebras

open access: yesExtracta Mathematicae, 2020
The propose of this paper is to extend generalized representations of 3-Lie algebras to Hom-type algebras. We introduce the concept of generalized representation of multiplicative 3-Hom-Lie algebras, develop the corresponding cohomology theory and study ...
S. Mabrouk, A. Makhlouf, S. Massoud
doaj  

Computer-Aided Analysis of Solvable Rigid Lie Algebras with a Given Eigenvalue Spectrum

open access: yesAxioms, 2022
With the help of symbolic computer packages, the study of the cohomological rigidity of real solvable Lie algebras of rank one with a maximal torus of derivations t and the eigenvalue spectrum spec(t)=1,k,k+1,⋯,n+k−2 initiated in a previous work is ...
Rutwig Campoamor-Stursberg   +1 more
doaj   +1 more source

Combination of open covers with π1$\pi _1$‐constraints

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 12, Page 3886-3901, December 2025.
Abstract Let G$G$ be a group and let F$\mathcal {F}$ be a family of subgroups of G$G$. The generalised Lusternik–Schnirelmann category catF(G)$\operatorname{cat}_\mathcal {F}(G)$ is the minimal cardinality of covers of BG$BG$ by open subsets with fundamental group in F$\mathcal {F}$.
Pietro Capovilla, Kevin Li, Clara Löh
wiley   +1 more source

sl(2)-Trivial Deformations of Vect_{Pol}(R)-Modules of Symbols

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2008
We consider the action of Vect_{Pol}(R) by Lie derivative on the spaces of symbols of differential operators. We study the deformations of this action that become trivial once restricted to sl(2).
Mabrouk Ben Ammar, Maha Boujelbene
doaj   +1 more source

Bott-Chern hypercohomology and bimeromorphic invariants

open access: yesComplex Manifolds, 2023
The aim of this article is to study the geometry of Bott-Chern hypercohomology from the bimeromorphic point of view. We construct some new bimeromorphic invariants involving the cohomology for the sheaf of germs of pluriharmonic functions, the truncated ...
Yang Song, Yang Xiangdong
doaj   +1 more source

Model category structures on truncated multicomplexes for complex geometry

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 12, Page 4163-4177, December 2025.
Abstract To a bicomplex one can associate two natural filtrations, the column and row filtrations, and then two associated spectral sequences. This can be generalized to N$N$‐multicomplexes. We present a family of model category structures on the category of N$N$‐multicomplexes where the weak equivalences are the morphisms inducing a quasi‐isomorphism ...
Joana Cirici   +2 more
wiley   +1 more source

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