Yongyun Qin

collaborators

2 papers

math.RT2024

Singular equivalences induced by ring extensions

Yongyun Qin

Let $B \subseteq A$ be an extension of finite dimensional algebras. We provide a sufficient condition for the existence of triangle equivalences of singularity categories (resp. Go…

math.RT2023

A note on singularity categories and triangular matrix algebras

Yongyun Qin

Let $Λ = [A M 0 B]$ be an Artin algebra and $_{B} M_{A}$ a $B$ - $A$ -bimodule. We prove that there is a triangle equivalence $D_{sg}(Λ) \co…