INMABB   05456
INSTITUTO DE MATEMATICA BAHIA BLANCA
Unidad Ejecutora - UE
artículos
Título:
Connected gradings and fundamental group
Autor/es:
CIBILS, CLAUDE; MARIA JULIA REDONDO; SOLOTAR, ANDREA
Revista:
Algebra Number Theory
Editorial:
Math. Sci. Publ. Univ. Calif.
Referencias:
Año: 2010 vol. 4 p. 625 - 648
ISSN:
1937-0652
Resumen:
The main purpose of this paper is to provide explicit computations of the fundamental groups of several algebras. For this purpose, given a k-algebra A, we consider the category of all connected gradings of A by a group G and we study the relation between gradings and Galois coverings. This theoretical tool gives information about the fundamental group of A, which allows its computation using complete lists of gradings.