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math.CO2026
Counting -wise -intersecting cliques with prescribed intersection sizes
Yiyan Zhan, Yichen Wang, Mei Lu
Let be integers and a fixed set of integers with and . For each integer …
math.CO2026
A generalization of Erdős-Hajnal problem on paths with equal-degree endpoints
Xiamiao Zhao, Yichen Wang, Mei Lu
Erdős and Hajnal proposed a problem that: is it true that every -vertex graph with edges contains two vertices of equal degree connected by a path of length three…