4 papers
Representations over diagrams of abelian categories II: Abelian model structures
Zhenxing Di, Liping Li, Li Liang +1
This is the second paper in a series on representations over diagrams of abelian categories. We show that, under certain conditions, a compatible family of abelian model categories…
Sheaves of modules on atomic sites and discrete representations of topological groups
Zhenxing Di, Liping Li, Li Liang +1
The main goal of this paper is to establish close relations among sheaves of modules on atomic sites, representations of categories, and discrete representations of topological gro…
Ray-Knight compactification of birth and death processes
Liping Li
A birth and death process is a continuous-time Markov chain with the minimal state space , whose transition matrix is standard and whose density matrix is the given birt…
Flat model structures and Gorenstein objects in functor categories
Zhenxing Di, Liping Li, Li Liang +1
We construct a flat model structure on the category of additive functors from a small preadditive category satisfying certain conditi…