Jia-Qun Wei

activity

20242026

collaborators

6 papers

math.RA2026

Reduction techniques for the derived delooping levels

Kaili Wu, Jiaqun Wei, Dajun Liu +1

The derived delooping level is a recently introduced homological invariant that provides an upper bound for the finitistic dimension of the opposite algebra. In this paper, we empl…

math.RA2026

Degree-shifted derived invariance of derived delooping levels

Jiaqun Wei, Kaili Wu, Weiqing Cao

Gélinas introduced the delooping level of an Artin algebra as a homological invariant that bounds the big finitistic dimension of the opposite algebra. A natural question is whethe…

math.RA2025

(projectively coresolved) Gorenstein flat modules over tensor rings

Guoliang Tang, Jiaqun Wei

Let $T_{R} (M)$ be a tensor ring, where $R$ is a ring and $M$ is an $N$ -nilpotent $R$ -bimodule. Under certain conditions, we characterize projectively coresolved Gorenstein flat modul…

math.AC2025

Universal enveloping H-pseudoalgebras of DGP pseudoalgebras

Ying Chen, Jiafeng Lü, Jiaqun Wei

The notions of Poisson $H$ -pseudoalgebras are generalizations of Poisson algebras in a pseudotensor category $M^{*} (H)$ . This paper introduces an analogue of Poisson-O…

math.CT2024

Recollements and $n$ -cotorsion pairs

Weiqing Cao, Jiaqun Wei, Kaili Wu

In the present paper, we study the relationships of $n$ -cotorsion pairs among three abelian categories in a recollement. Under certain conditions, we present an explicit constructi…

math.RT2024

Strongly $n$ -AIR-tilting modules

Weiqing Cao, Jiaqun Wei

We introduce the notion of (strongly) $n$ -AIR-tilting modules, which is a high dimension version of support $τ$ -tilting modules. The relations between them and $n$ -silting modules…