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Abstract:

We define H-Galois extensions for k-linear categories and prove the existence of a Grothendieck spectral sequence for Hochschild-Mitchell cohomology related to this situation. This spectral sequence is multiplicative and for a group algebra decomposes as a direct sum indexed by conjugacy classes of the group. We also compute some Hochschild-Mitchell cohomology groups of categories with infinite associated quivers. © 2006 Elsevier Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:Hochschild-Mitchell cohomology and Galois extensions
Autor:Herscovich, E.; Solotar, A.
Filiación:Departamento de Matemática, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellon 1, 1428 Buenos Aires, Argentina
Año:2007
Volumen:209
Número:1
Página de inicio:37
Página de fin:55
DOI: http://dx.doi.org/10.1016/j.jpaa.2006.05.012
Título revista:Journal of Pure and Applied Algebra
Título revista abreviado:J. Pure Appl. Algebra
ISSN:00224049
CODEN:JPAAA
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_00224049_v209_n1_p37_Herscovich.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00224049_v209_n1_p37_Herscovich

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Citas:

---------- APA ----------
Herscovich, E. & Solotar, A. (2007) . Hochschild-Mitchell cohomology and Galois extensions. Journal of Pure and Applied Algebra, 209(1), 37-55.
http://dx.doi.org/10.1016/j.jpaa.2006.05.012
---------- CHICAGO ----------
Herscovich, E., Solotar, A. "Hochschild-Mitchell cohomology and Galois extensions" . Journal of Pure and Applied Algebra 209, no. 1 (2007) : 37-55.
http://dx.doi.org/10.1016/j.jpaa.2006.05.012
---------- MLA ----------
Herscovich, E., Solotar, A. "Hochschild-Mitchell cohomology and Galois extensions" . Journal of Pure and Applied Algebra, vol. 209, no. 1, 2007, pp. 37-55.
http://dx.doi.org/10.1016/j.jpaa.2006.05.012
---------- VANCOUVER ----------
Herscovich, E., Solotar, A. Hochschild-Mitchell cohomology and Galois extensions. J. Pure Appl. Algebra. 2007;209(1):37-55.
http://dx.doi.org/10.1016/j.jpaa.2006.05.012