Cograde conditions and cotorsion pairs
Rings and Algebras
2019-07-15 v1 Representation Theory
Abstract
Let and be rings and a semidualizing bimodule. We study when the double functor preserves epimorphisms and the double functor preserves monomorphisms in terms of the (strong) cograde conditions of modules. Under certain cograde condition of modules, we construct two complete cotorsion pairs. In addition, we establish the relation between some relative finitistic dimensions of rings and the right and left projective dimensions of .
Keywords
Cite
@article{arxiv.1907.05602,
title = {Cograde conditions and cotorsion pairs},
author = {Xi Tang and Zhaoyong Huang},
journal= {arXiv preprint arXiv:1907.05602},
year = {2019}
}
Comments
46 pages, accepted for publication in Publications of the Research Institute for Mathematical Sciences