报告题目：Codegree Turan density and independence number of hypergraphs

报告人：Professor Zhao Yi (Geogia State University) 

时间：6月18号下午4：00-5：00 

地点：1208

摘要：

Turan number and independence number are two fundamental parameters of graphs. We only have limited knowledge of them in hypergraphs. In a joint work with Allan Lo (University of Birmingham, UK), we gave the best bounds for the codegree Turan density of complete r-uniform hypergraphs. In a recent joint work with Marcelo Sales and Vojtech Rodl (Emory University, USA), we obtained a new bound for independence number of 4-uniform hypergraphs under maximum degree conditions.

I will discuss the connection and proofs of these and other related results.