Finite-dimensional algebras with smallest resolutions of simple modules
Representation Theory
2007-05-23 v2 Rings and Algebras
Abstract
Let be a finitely generated left module over a left artinian ring , and let be the infinite sequence of nonnegative integers where is the length of the -th term of the minimal projective resolution of . We introduce a preorder relation on the set and characterize the elementary finite-dimensional algebras with the following property. Let be a simple -module, and let be a finitely generated module over an arbitrary left artinian ring . If the projective dimension of does not exceed the projective dimension of , then . We characterize the indicated algebras by quivers with relations.
Keywords
Cite
@article{arxiv.math/0512656,
title = {Finite-dimensional algebras with smallest resolutions of simple modules},
author = {Shashidhar Jagadeeshan and Mark Kleiner},
journal= {arXiv preprint arXiv:math/0512656},
year = {2007}
}
Comments
Minor revisions, to appear in Journal of Algebra