English

Comodules over semiperfect corings

Rings and Algebras 2011-09-15 v1

Abstract

We discuss when the Rat functor associated to a coring satisfying the left α\alpha-condition is exact. We study the category of comodules over a semiperfect coring. We characterize semiperfect corings over artinian rings and over qF-rings.

Keywords

Cite

@article{arxiv.1109.3044,
  title  = {Comodules over semiperfect corings},
  author = {S. Caenepeel and M. Iovanov},
  journal= {arXiv preprint arXiv:1109.3044},
  year   = {2011}
}

Comments

18 pages

R2 v1 2026-06-21T19:04:37.534Z