4 papers
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…
Recollements and -cotorsion pairs
Weiqing Cao, Jiaqun Wei, Kaili Wu
In the present paper, we study the relationships of -cotorsion pairs among three abelian categories in a recollement. Under certain conditions, we present an explicit constructi…
Strongly -AIR-tilting modules
Weiqing Cao, Jiaqun Wei
We introduce the notion of (strongly) -AIR-tilting modules, which is a high dimension version of support -tilting modules. The relations between them and -silting modules…
Minimal silting modules and ring extensions
Lidia Angeleri Hügel, Weiqing Cao
Ring epimorphisms often induce silting modules and cosilting modules, termed minimal silting or minimal cosilting. The aim of this paper is twofold. Firstly, we determine the minim…