4 papers
Heaps of modules: homological aspects
Yongduo Wang, Chenyu Wang, Jian He +1
The definitions of projective objects and Gorenstein projective objects in the category of heaps of -modules are posed, where is a truss. It is shown that a heap of -modu…
Wakamatsu tilting subcategories and weak support tau-tilting subcategories in recollements
Yongduo Wang, Hongyang Luo, Yu-Zhe Liu +2
In this article, we prove that if (A, B, C) is a recollement of abelian categories, then Wakamatsu tilting (resp. weak support tau-tilting) subcategories in A and C can induce Waka…
Injectivity of modules over trusses
Yongduo Wang, Shujuan Han, Dengke Jia +2
As the dual notion of projective modules over trusses, injective modules over trusses are introduced. The Schanuel Lemmas on projective and injective modules over trusses are exhib…
Several results on exact sequences in categories of modules over trusses
Yongduo Wang, Dengke Jia, Jian He +1
Categorical aspects of the theory of modules over trusses were studied in recent years. The snake lemma and the nine lemma in categories of modules over trusses are formulated in t…