Showing math.RTShow all
3 papers · 1 filter
math.RT2026
Rickard's question on standard derived equivalences
Wei Hu, Changchang Xi, Jin Zhang
In 1991 Rickard asked whether every derived equivalence of algebras over a common field is standard. We construct a series of examples of non-standard derived equivalences, and thu…
math.RT2023
Self-injective algebras under derived equivalences
Changchang Xi, Jin Zhang
The Nakayama permutations of two derived equivalent, self-injective Artin algebras are conjugate. A different but elementary approach is given to showing that the weak symmetry and…
math.RT2021
Complexes with the double centraliser property
Jin Zhang
In representation theory, the double centraliser property is an important property for a module (bimodule). It plays a fundamental role in many theories. In this paper, we extend t…