Results 171 to 180 of about 1,113 (200)

Cohomological Dimension of Algebraic Varieties

The Annals of Mathematics, 1968
Let X be a scheme of finite type over a field k. The cohomological dimension of X is the smallest integer n > 0 such that H'(X, F) = 0 for all i > n, and for all quasi-coherent sheaves F on X. There are two well-known theorems about the cohomological dimension of X.
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A bound for the Bredon cohomological dimension

Journal of Group Theory, 2007
Summary: We prove that if \(G\) is a group with a bound on the lengths of finite subgroups and \(G\) has finite Bredon cohomological dimension, then this dimension is bounded by the sum of the previous bound and the projective dimension of a certain \(\mathbb{Z} G\)-module.
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Universal separable metrizable spaces of given cohomological dimension [PDF]

Topology and Its Applications, 1995
For every countable CW complex K, we construct a universal separable metrizable space X with K ϵ AE(X). From this theorem we derive several corollaries devoted to the question of existence of universal spaces in cohomological dimension ...
Olszewski, Wojciech
exaly   +2 more sources

Yang–Mills cohomology in four dimensions

Journal of Mathematical Physics, 1986
The local polynomial cohomology space of the Yang–Mills BRS operator in four dimensions is computed. In order to simplify the analysis, without omitting the physically interesting cases, the investigation is limited to polynomials whose Fadeev–Popov charge and UV naive dimensions have upper bounds.
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On cohomological dimension of homomorphisms

Proceedings of the American Mathematical Society
The (co)homological dimension of a homomorphism ϕ : G
De Saha, Aditya, Dranishnikov, Alexander
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The Cohomological Dimension of Gs

2002
In this chapter k is an arbitrary global field of finite type. We study the cohomology groups H v (Gs) in more detail and prove in particular that H3(Gs) vanishes under certain conditions.
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Cohomological Dimension

2000
Luis Ribes, Pavel Zalesskii
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Cohomological Dimension

2020
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Cohomological Dimension and Abelian Varieties

American Journal of Mathematics, 1973
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On Lie p -algebras of cohomological dimension one

Indagationes Mathematicae, 2019
Pasha Zusmanovich
exaly