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math.AT2020★ 1 cited
A Discrete Morse Theory for Digraphs
Chong Wang, Shiquan Ren
Digraphs are generalizations of graphs in which each edge is assigned with a direction or two directions. In this paper, we define discrete Morse functions on digraphs, and prove t…
math.AT2020
A Künneth Formula of Hypergraphs
Chong Wang, Shiquan Ren, Jian Liu
In this paper, based on the embedded homology groups of hypergraphs defined in \cite{h1}, we define the product of hypergraphs and prove the corresponding Künneth formula of hyperg…