Qinghua Chen

activity

20172026

collaborators

3 papers

math.RT2026

Quantum Weyl Relations arising from Two-Term Complexes

Qinghua Chen, Yonggang Hu

Let $Q$ be a Dynkin quiver over $k = F_{q}$ , let $A = k Q$ , and let $\Ktwo(\cP)$ be the extriangulated category of two-term complexes of projective $A$ -modules. We study the squar…

math.CT2021

One-sided Frobenius pairs in extriangulated categories

Lingling Tan, Yuqiong Gao, Qinghua Chen

Let $C$ be an extriangulated category with a proper class $ξ$ of $E$ -triangles. We introduce the notions of left Frobenius pairs, left ( $n$ -)cotorsion pairs and…

math.RT2017

Multiplicative properties of certain elements in Bridgeland's Hall algebras

Qinghua Chen, Haicheng Zhang

Let $A$ be a finite dimensional algebra of finite global dimension over a finite field. In the present paper, we introduce certain elements in Bridgeland's Hall algebra of $A$ , and…