Results 121 to 130 of about 81,882 (247)
Equivariant Brauer groups and cohomology
Journal of Algebra, 2006 AbstractIn this paper we present a cohomological description of the equivariant Brauer group relative to a Galois finite extension of fields endowed with the action of a group of operators. This description is a natural generalization of the classic Brauer–Hasse–Noether's theorem, and it is established by means of a three-term exact sequence linking ...
Antonio M. Cegarra, Antonio R. Garzón
openaire +2 more sources
Framed cohomological Hall algebras and cohomological stable envelopes. [PDF]
Lett Math Phys, 2023 Botta TM.
europepmc +1 more source
Arc spaces and equivariant cohomology [PDF]
Transformation Groups 18 (2013), no. 4, 931-969, 2009 We present a new geometric interpretation of equivariant cohomology in which one replaces a smooth, complex $G$-variety $X$ by its associated arc space $J_{\infty} X$, with its induced $G$-action. This not only allows us to obtain geometric classes in equivariant cohomology of arbitrarily high degree, but also provides more flexibility for ...
arxiv
On the Duflot filtration for equivariant cohomology rings and applications to group cohomology [PDF]
arXiv, 2017 We study the Duflot filtration on the Borel equivariant cohomology of smooth manifolds with a smooth $p$-torus action. We axiomatize the filtration and prove analog of several structural results about equivariant cohomology rings in this setting. We apply this abstract theory to study the $\mathbb{F}_p$ cohomology rings of classifying spaces of compact
arxiv
Localization of equivariant cohomology rings [PDF]
Transactions of the American Mathematical Society, 1984 The main result of this paper is the "calculation" of the Borel equivariant cohomology ring H ∗ ( E G × G X , Z / p
openaire +1 more source
Slope classicality in higher Coleman theory via highest weight vectors in completed cohomology. [PDF]
Proc Natl Acad Sci U S A, 2022 Howe S.
europepmc +1 more source
Equivariant Cohomology and Representations of the Symmetric Group [PDF]
arXiv, 2000 A cohomological study is made of an equivariant map betwen the configuration space of n points in space and the flag manifold of U(n).
arxiv
Index theorem and equivariant cohomology on the loop space [PDF]
, 1985 Jean‐Michel Bismut
openalex +1 more source
Gauge fixing and equivariant cohomology [PDF]
Classical and Quantum Gravity, 2005 The supersymmetric model developed by Witten to study the equivariant cohomology of a manifold with an isometric circle action is derived from the BRST quantization of a simple classical model. The gauge-fixing process is carefully analysed, and demonstrates that different choices of gauge-fixing fermion can lead to different quantum theories.
openaire +4 more sources
On the weight zero compactly supported cohomology of ${\mathcal {H}}_{g,n}$
Forum of Mathematics, SigmaFor $g\ge 2$ and $n\ge 0$ , let $\mathcal {H}_{g,n}\subset \mathcal {M}_{g,n}$ denote the complex moduli stack of n-marked smooth hyperelliptic curves of genus g.
Madeline Brandt +2 more
doaj +1 more source