Pseudo-Frobenius graded algebras with enough idempotents
Representation Theory
2014-12-23 v1
Abstract
We introduce and study the notion of pseudo-Frobenius graded algebra with enough idempotents, showing that it follows the pattern of the classical concept of pseudo-Frobenius (PF) and Quasi-Frobenius (QF) rings, in particular finite dimensional self-injective algebras, as studied by Nakayama, Morita, Faith, Tachikawa, etc. We show that such an algebra is characterized by the existence of a graded Nakayama form. Moreover, we prove that the pseudo-Frobenius property is preserved and reflected by covering functors, a fact that makes the concept useful in Representation Theory.
Keywords
Cite
@article{arxiv.1412.6917,
title = {Pseudo-Frobenius graded algebras with enough idempotents},
author = {Estefanía Andreu Juan and Manuel Saorín},
journal= {arXiv preprint arXiv:1412.6917},
year = {2014}
}
Comments
24 pages. arXiv admin note: substantial text overlap with arXiv:1304.0586