Comatrix Corings an Invertible Bimodules
Rings and Algebras
2007-05-23 v1
Abstract
We extend Masuoka's Theorem [11] concerning the isomorphism between the group of invertible bimodules in a non-commutative ring extension and the group of automorphisms of the associated Sweedler's canonical coring, to the class of finite comatrix corings introduced in [6].
Cite
@article{arxiv.math/0501032,
title = {Comatrix Corings an Invertible Bimodules},
author = {L. El Kaoutit and J. Gomez-Torrecillas},
journal= {arXiv preprint arXiv:math/0501032},
year = {2007}
}
Comments
10 pages