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Colloquium September 29

Date: Friday September 29

Time: 16:00 to 17:00

Place: 455 McBryde (Commons Room)

Speaker: David Herron of Univ of Cincinnati

Title: Metric Space Inversions

Abstract

We (briefly) recall the concept of Euclidean inversion about a sphere, an idea closely connected to reflection across a plane. We define a notion of inversion valid in the general metric space setting and establish several basic facts concerning this concept. For example, certain important geometric properties are preserved under inversion. In the presence of an annular quasiconvexity property, we obtain additional results as well as improved quantitative information. This is joint work with Stephen M. Buckley and Xiangdong Xie.


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