Pure Math Grad Student Seminar (PuMaGraSS)

Friday, November 02, 2018 at 12:00pm to 1:00pm


Speaker: Hong Wang

Title: About Falconer distance problem in the plane

Abstract: If E is a compact set of Hausdorff dimension greater than 5/4 on the plane, we prove that there is a point x\in E such that the set of distances between x and E has positive Lebesgue measure. Our result improves upon Wolff's theorem for dim E> 4/3. This is joint work with Larry Guth, Alex Iosevich and Yumeng Ou.

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