Equivalence of the local and global versions of the -Brunn-Minkowski inequality
arXiv:1909.03729
Abstract
By studying -combinations of strongly isomorphic polytopes, we prove the equivalence of the -Brunn-Minkowski inequality conjectured by Böröczky, Lutwak, Yang and Zhang to the local version of the inequality studied by Colesanti, Livshyts, and Marsiglietti and by Kolesnikov and Milman, settling a conjecture of the latter authors. In addition, we prove the local inequality in dimension , yielding a new proof of the -Brunn-Minkowski inequality in the plane.
18 pages