Expensive Homeomorphism of Convex Bodies

Fuente: arXiv
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Main Author: Kim, Donghan
Format: Preprint
Published: 2025
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author Kim, Donghan
author_facet Kim, Donghan
contents In this paper, we address the longstanding question of whether expansive homeomorphisms can exist within convex bodies in Euclidean spaces. Utilizing fundamental tools from topology, including the Borsuk-Ulam theorem and Brouwer's fixed-point theorem, we establish the nonexistence of such mappings. Through an inductive approach based on dimension and the extension of boundary homeomorphisms, we demonstrate that expansive homeomorphisms are incompatible with the compact and convex structure of these bodies. This work highlights the interplay between topological principles and metric geometry, offering new insights into the constraints imposed by convexity.
format Preprint
id arxiv_https___arxiv_org_abs_2501_02259
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Expensive Homeomorphism of Convex Bodies
Kim, Donghan
Metric Geometry
Computational Geometry
General Topology
In this paper, we address the longstanding question of whether expansive homeomorphisms can exist within convex bodies in Euclidean spaces. Utilizing fundamental tools from topology, including the Borsuk-Ulam theorem and Brouwer's fixed-point theorem, we establish the nonexistence of such mappings. Through an inductive approach based on dimension and the extension of boundary homeomorphisms, we demonstrate that expansive homeomorphisms are incompatible with the compact and convex structure of these bodies. This work highlights the interplay between topological principles and metric geometry, offering new insights into the constraints imposed by convexity.
title Expensive Homeomorphism of Convex Bodies
topic Metric Geometry
Computational Geometry
General Topology
url https://arxiv.org/abs/2501.02259