2 papers
math.CT2026
Orthogonal Model Structures
Yang Gao, Yu-xiao Yang, Pu Zhang
This paper studies orthogonal model structures, i.e., model structures such that a lifting in the Lifting axiom is unique. Cofibrant (fibrant) objects are defined without initial (…
math.RT2026
Homotopy categories of admissible model structures on extriangulated categories
Shun-Jie Li, Yang Gao, Pu Zhang
The extriangulated category is a simultaneous generalization of exact categories and triangulated categories. H. Nakaoka and Y. Palu have proved that the homotopy category of an ad…