Weakly Gorenstein comodules over triangular matrix coalgebras

In this paper, we characterise weakly Gorenstein injective and weakly Gorenstein coflat comodules over triangular matrix coalgebras by introducing the class of weakly compatible bicomodules. In particular, Gorenstein injective and Gorenstein coflat comodules are investigated.

Bibliographic Details
Main Authors: Dingguo Wang, Chenyang Liu, Xuerong Fu
Format: Article
Language:English
Published: AIMS Press 2022-06-01
Series:AIMS Mathematics
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/math.2022847?viewType=HTML