The first cohomology group of the trivial extension of a monomial algebra

Cibils, Claude; Redondo, Maria Julia; Saorín, Manuel

info:eu-repo/semantics/article

Fecha

2004-12

Registro en:

Cibils, Claude; Redondo, Maria Julia; Saorín, Manuel; The first cohomology group of the trivial extension of a monomial algebra; World Scientific; Journal of Algebra and its Applications; 3; 2; 12-2004; 143-159

0219-4988

http://hdl.handle.net/11336/95367

CONICET Digital

CONICET

https://repositorioslatinoamericanos.uchile.cl/handle/2250/4308535

Autor

Cibils, Claude

Redondo, Maria Julia

Saorín, Manuel

Institución

Consejo Nacional de Investigaciones Científicas y Tecnológicas (Argentina)

Resumen

Given a finite-dimensional monomial algebra A, we consider the trivial extension TA and provide formulae, depending on the characteristic of the field, for the dimensions of the summands HH1(A) and Alt(DA) of the first Hochschild cohomology group HH1(TA). From these a formula for the dimension of HH1(TA) can be derived.

Materias

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