Distance Sets Spanned by Sets of Dimension D/2

Explore a 47-minute lecture on distance sets in Euclidean spaces presented by Hong Wang at the Hausdorff Center for Mathematics. Delve into the concept of distance sets defined as Delta(E) = {|x-y| : x,y e E} for a subset E of R^d. Examine the joint work with Pablo Shmerkin, proving that when both the packing dimension and Hausdorff dimension of E equal d/2, the Hausdorff dimension of Delta(E) is 1. Learn about additional findings showing that for dim_H (E) greater than or equal to d/2, dim_H Delta(E) is greater than or equal to d/2 + c_d for d = 2, 3, and dim_B Delta(E) is greater than or equal to d/2 + c_d for d > 3, with explicit positive constants c_d. Gain insights into advanced mathematical concepts and their applications in geometric measure theory.

Hong Wang: Distance sets spanned by sets of dimension d/2