Homology of Epsilon-Strongly Graded Algebras

Fuente: arXiv
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Main Author: Jerez, Emmanuel
Format: Preprint
Published: 2025
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_version_ 1866909700054843392
author Jerez, Emmanuel
author_facet Jerez, Emmanuel
contents Let $G$ be a group and $S$ a unital epsilon-strongly $G$-graded algebra. We construct spectral sequences converging to the Hochschild (co)homology of $S$. Each spectral sequence is expressed in terms of the partial group (co)homology of $G$ with coefficients in the Hochschild (co)homology of the degree-one component of $S$. Moreover, we show that the homology spectral sequence decomposes according to the conjugacy classes of $G$, and, by means of the globalization functor, its $E^2$-page can be identified with the ordinary group homology of suitable centralizers.
format Preprint
id arxiv_https___arxiv_org_abs_2507_16778
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Homology of Epsilon-Strongly Graded Algebras
Jerez, Emmanuel
K-Theory and Homology
Rings and Algebras
Primary 16E40, 16W50, Secondary 16W22, 18G40, 18G60
Let $G$ be a group and $S$ a unital epsilon-strongly $G$-graded algebra. We construct spectral sequences converging to the Hochschild (co)homology of $S$. Each spectral sequence is expressed in terms of the partial group (co)homology of $G$ with coefficients in the Hochschild (co)homology of the degree-one component of $S$. Moreover, we show that the homology spectral sequence decomposes according to the conjugacy classes of $G$, and, by means of the globalization functor, its $E^2$-page can be identified with the ordinary group homology of suitable centralizers.
title Homology of Epsilon-Strongly Graded Algebras
topic K-Theory and Homology
Rings and Algebras
Primary 16E40, 16W50, Secondary 16W22, 18G40, 18G60
url https://arxiv.org/abs/2507.16778