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JOURNALS // Zapiski Nauchnykh Seminarov POMI // Archive

Zap. Nauchn. Sem. POMI, 2025 Volume 544, Pages 211–235 (Mi znsl7607)

Mean distance between random points in centrally symmetric convex bodies

A. S. Lotnikov

Saint Petersburg State University

Abstract: The Tarasov–Zaporozhets conjecture is considered, which states that the mean distance between two random points nside a convex body does not exceed the mean distance between points on its boundary. The main result of this work is a proof of this conjecture for centrally symmetric planar bodies. It is also established that for sufficiently high moments, an analogous inequality holds for any convex body of arbitrary dimension.

Key words and phrases: convex bodies, geometric probability, mean distance, random points, central symmetry, stochastic majorization, isoperimetric inequality, random sections, integral geometry.

UDC: 519.2

Received: 12.11.2025



© Steklov Math. Inst. of RAS, 2026