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math.CO2022
On subgraphs of tripartite graphs
Abhijeet Bhalkikar, Yi Zhao
Bollobás, Erdős, and Szemerédi [Discrete Math 13 (1975), 97--107] investigated a tripartite generalization of the Zarankiewicz problem: what minimum degree forces a tripartite grap…
math.CO2014
Minimum codegree threshold for Hamilton l-cycles in k-uniform hypergraphs
Jie Han, Yi Zhao
For , we show that for sufficiently large , every -uniform hypergraph on vertices with minimum codegree at least contains a Hamilton…