Ações parciais de grupos sobre álgebras : teoria de Galois e contexto de Morita

Abstract

In this work, we are interested in studying conditions so that the R alpha and R alpha G rings are Morita equivalents. We will see (in the main theorem) that a condition for such rings to be Morita equivalents is when the ring R has partial Galois coordinates on R alpha. This leads us to the study of Morita Theory, partial actions of groups on rings (in a purely algebraic context) and extensions of partial Galois