Geometric coincidence results from multiplicity of continuous maps

Abstract

In this paper we study geometric coincidence problems in the spirit of the following problems by B. Grünbaum: How many affine diameters of a convex body in ${\mathbb{R}}^n$ must have a common point? How many centers (in some sense) of hyperplane sections of a convex body in ${\mathbb{R}}^n$ must coincide? One possible approach to such problems is to find topological reasons for multiple coincidences for a continuous map between manifolds of equal dimension. In other words, we need topological estimates for the multiplicity of a map. In this work examples of such estimates and their geometric consequences are presented.

References in corpus (1)

• Multiplicity of continuous maps between manifolds