Speaker：Liping Yuan (Hebei Normal University)

Time：2023-6-7, 16:30

Location：Conference Room 686 at the 6th floor of Shuli Building at Haiyun Campus

Abstract:

Let ℱ be a family of sets in R^d. A set M⊂ ℱ is called ℱ-convex if for any pair of distinct points x, y∈ M , there is a set F∈ ℱ such that x,y∈ F and F⊂M . In this talk we’ll discuss ℱ-convexity and related problems for some interesting families ℱ.