2 papers
math.RT2022
Extension dimensions: derived equivalences and stable equivalences
Jinbi Zhang, Junling Zheng
We show that the difference of the extension dimensions of two derived equivalent algebras is bounded above by the minimal length of a tilting complex associated with a derived equ…
math.RT2020
Structure of centralizer algebras
Changchang Xi, Jinbi Zhang
Given an matrix over a unitary ring , the centralizer of in the full matrix ring is called a principal centralizer matrix ring, denoted…