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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 be a tensor ring, where is a ring and is an -nilpotent -bimodule. Under certain conditions, we characterize projectively coresolved Gorenstein flat modul…