j9国际集团

随机图兰问题与西多连科猜测

2023.09.18

投稿:龚惠英部门:理学院浏览次数:

活动信息

汇报标题 (Title):Random Turán problem and Sidorenko conjecture(随机图兰问题与西多连科猜测)

汇报人 (Speaker): 聂家熹 博士后(复旦大学 上海数学中心)

汇报功夫 (Time):2023年9月15日 (周五) 9:30

汇报地址 (Place):校本部E408

约请人(Inviter):谢齐沁

主办部门:理学院数学系

汇报提要:Given an r-uniform hypergraph H, the random Turán number ex(Grn,p, H) is the maximum number of edges in an H-free subgraph of Grn,p. In the case when H is not r-partite, the problem has been essentially solved independently by Conlon and Gower; and Schacht. In the case when H is r-partite, the degenerate case, not much is known. The Sidorenko conjecture is a notorious problem in extremal combinatorics. It is known that its hypergraph analog is not true. Recently, Conlon, Lee, and Sidorenko discover a relation between Sidorenko conjecture and Turan problem. In this talk, we introduce some recent results on degenerate random Turan problem and its relation to the hypergraph analog of Sidorenko conjecture.

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