报告人: Hehui Wu(吴河辉）/ University of Mississippi

报告题目: Common Vertex of longest cycles 

时间：12月30日 16:00-17:00 

地点：1518 

Abstract:

It is conjectured that  all longest cycles in any 2-connected chordal graph have a common vertex, where  a chordal graph can be considered as the intersection graphs of a collection of subtrees of a host tree. We prove the case that the host tree has at most two vertices with degree at least three.

This is joint work with Guantao Chen and Shaohui Wang.

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