Frobenius properties and Maschke-type theorems for entwined modules
arXiv:math/9806025
Abstract
Entwined modules arose from the coalgebra-Galois theory. They are a generalisation of unified Doi-Hopf modules. In this paper, Frobenius properties and Maschke-type theorems, known for Doi-Hopf modules are extended to the case of entwined modules.
10 pages, LaTeX uses amscd and amssymb. A misprint in Definition 2.4 corrected