INVESTIGADORES
REDONDO Maria Julia
artículos
Título:
The first cohomology group of the trivial extension of a monomial algebra
Autor/es:
CIBILS, CLAUDE; REDONDO, MARIA JULIA; SAORIN, MANOLO
Revista:
JOURNAL OF ALGEBRA AND ITS APPLICATIONS
Editorial:
World Scientific Publishing Company
Referencias:
Año: 2004 vol. 3 p. 143 - 159
ISSN:
0219-4988
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.