English

On volume distribution in 2-convex bodies

Functional Analysis 2007-05-23 v1 Metric Geometry

Abstract

We consider convex sets whose modulus of convexity is uniformly quadratic. First, we observe several interesting relations between different positions of such ``2-convex'' bodies; in particular, the isotropic position is a finite volume-ratio position for these bodies. Second, we prove that high dimensional 2-convex bodies posses one-dimensional marginals that are approximately Gaussian. Third, we improve for 1<p<=2 some bounds on the isotropic constant of quotients of subspaces of L_p and S_p^m, the Schatten Class space.

Keywords

Cite

@article{arxiv.math/0604594,
  title  = {On volume distribution in 2-convex bodies},
  author = {Boaz Klartag and Emanuel Milman},
  journal= {arXiv preprint arXiv:math/0604594},
  year   = {2007}
}

Comments

27 pages

R2 v1 2026-07-22T17:35:02.434Z