4 papers
Chains of model structures arising from cotorsion pairs on extriangulated categories
Dandan Sun, Xiaoyan Yang, Dongdong Zhang +2
The main aim of this paper is to study chains of model structures arising from cotorsion pairs in extriangulated categories. Starting with a hereditary Hovey triple, we construct f…
Ideal approximation theory in Frobenius categories
Dandan Sun, Zhongsheng Tan, Qikai Wang +1
Let be a Frobenius category and the full subcategory consisting of projective objects. The relations between special precovering (resp., precovering) ideals in $\…
Cotorsion pairs and Enochs Conjecture for object ideals
Dandan Sun, Qikai Wang, Haiyan Zhu
Let and be object ideals in an exact category . It is proved that is a perfect ideal cotorsion p…
Recollements induced by left Frobenius pairs
Yajun Ma, Dandan Sun, Rongmin Zhu +1
Given a right exact functor from an abelian category into another abelian category, there is an associated abelian category called the comma category of the functor. In this paper,…