English

Strongly quasi-hereditary algebras and rejective subcategories

Rings and Algebras 2020-02-19 v3 Representation Theory

Abstract

Ringel's right-strongly quasi-hereditary algebras are a distinguished class of quasi-hereditary algebras of Cline-Parshall-Scott. We give characterizations of these algebras in terms of heredity chains and right rejective subcategories. We prove that any artin algebra of global dimension at most two is right-strongly quasi-hereditary. Moreover we show that the Auslander algebra of a representation-finite algebra AA is strongly quasi-hereditary if and only if AA is a Nakayama algebra.

Keywords

Cite

@article{arxiv.1705.03279,
  title  = {Strongly quasi-hereditary algebras and rejective subcategories},
  author = {Mayu Tsukamoto},
  journal= {arXiv preprint arXiv:1705.03279},
  year   = {2020}
}

Comments

20 pages, to appear in Nagoya Math. J