English

Non-central sections of convex bodies

Metric Geometry 2015-09-29 v1

Abstract

We study the following open problem, suggested by Barker and Larman. Let KK and LL be convex bodies in Rn\mathbb R^n (n2n\ge 2) that contain a Euclidean ball BB in their interiors. If voln1(KH)=voln1(LH)\mathrm{vol}_{n-1}(K\cap H) = \mathrm{vol}_{n-1}(L\cap H) for every hyperplane HH that supports BB, does it follow that K=LK=L? We discuss various modifications of this problem. In particular, we show that in R2\mathbb R^2 the answer is positive if the above condition is true for two disks, none of which is contained in the other. We also study some higher dimensional analogues.

Keywords

Cite

@article{arxiv.1509.08174,
  title  = {Non-central sections of convex bodies},
  author = {Vladyslav Yaskin and Ning Zhang},
  journal= {arXiv preprint arXiv:1509.08174},
  year   = {2015}
}

Comments

22 pages, 4 figures