3 papers
math.RT2026
Igusa-Todorov properties of recollements of abelian categories
Peiru Yang, Yajun Ma, Yu-Zhe Liu
In this paper, we investigate the behavior of Igusa-Todorov properties under recollements of abelian categories. In particular, we study how the Igusa-Todorov distances of the cate…
math.CT2024
Three homological invariants under cleft extensions
Yajun Ma, Junling Zheng, Yu-Zhe Liu
In this paper, we investigate the behavior of Igusa-Todorov distances, extension and Rouquier dimensions under cleft extensions of abelian categories. We apply our results to Morit…
math.CT2024
Admissible weak factorization systems on extriangulated categories
Yajun Ma, Hanyang You, Dongdong Zhang +1
Extriangulated categories, introduced by Nakaoka and Palu, serve as a simultaneous generalization of exact and triangulated categories. In this paper, we first introduce the concep…