Results 111 to 120 of about 138,760 (231)
Cohomological dimension and top local cohomology modules
Rocky Mountain Journal of Mathematics, 2019 Let $R$ be a Noetherian ring, $I$ an ideal of $R$ and $M$ an $R$-module. In this paper, we first determine a condition under which a given integer $t$ is a lower bound for the cohomological dimension $\operatorname {cd}(I,M)$, and use this to conclude that non-catenary Noetherian domains contain prime ideals that are not set-theoretic complete ...
Erdoğdu, Vahap, Yıldırım, Tuğba
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An operadic approach to vertex algebra and Poisson vertex algebra cohomology
, 2019 We translate the construction of the chiral operad by Beilinson and Drinfeld to the purely algebraic language of vertex algebras. Consequently, the general construction of a cohomology complex associated to a linear operad produces a vertex algebra ...
Bakalov, Bojko +3 more
core
The triviality of dihedral cohomology for operator algebras
Scientific AfricanThis article delves into algebraic topology, specifically (co)homology theory, which is essential in various mathematical fields. It explores different types of (co)homology groups such as Hochschild, cyclic, reflexive, and dihedral, focusing on dihedral
Samar A.A. Quota +3 more
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The suspension of the generalized Pontrjagin cohomology operations [PDF]
, 1959 Paul A. Thomas
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On bounded cohomology of amalgamated products of groups
International Journal of Mathematics and Mathematical Sciences, 2004 We investigate the structure of the singular part of the second bounded cohomology group of amalgamated products of groups by constructing an analog of the initial segment of the Mayer-Vietoris exact cohomology sequence for the spaces of pseudocharacters.
Igor V. Erovenko
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On the three-dimensional cohomology group of Lie algebras. [PDF]
, 1953 Mitsuya Mori
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Substitutions with Vanishing Rotationally Invariant First Cohomology
Discrete Dynamics in Nature and Society, 2012 The cohomology groups of tiling spaces with three-fold and nine-fold symmetries are obtained. The substitution tilings are characterized by the fact that they have vanishing first cohomology group in the space of tilings modulo a rotation.
Juan García Escudero
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