A note on generalized four-point inequality

Fuente: arXiv
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Main Authors: Petrov, Evgeniy A., Salimov, Ruslan R.
Format: Preprint
Published: 2024
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author Petrov, Evgeniy A.
Salimov, Ruslan R.
author_facet Petrov, Evgeniy A.
Salimov, Ruslan R.
contents In 2017 M. Bessenyei and Z. Páles introduced a definition of a triangle function which generates a concept of a generalized triangle inequality in semimetric spaces. Inspired by this concept we discuss already known inequalities in metric spaces that relate the six distances determined by four points and introduce a definition of a generalized four-point inequality in semimetric spaces. Conditions under which quasisymmetric mappings and quasimöbius mappings between semimetric spaces preserve such inequality are obtained.
format Preprint
id arxiv_https___arxiv_org_abs_2412_20526
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A note on generalized four-point inequality
Petrov, Evgeniy A.
Salimov, Ruslan R.
General Topology
54E25, 54C25
In 2017 M. Bessenyei and Z. Páles introduced a definition of a triangle function which generates a concept of a generalized triangle inequality in semimetric spaces. Inspired by this concept we discuss already known inequalities in metric spaces that relate the six distances determined by four points and introduce a definition of a generalized four-point inequality in semimetric spaces. Conditions under which quasisymmetric mappings and quasimöbius mappings between semimetric spaces preserve such inequality are obtained.
title A note on generalized four-point inequality
topic General Topology
54E25, 54C25
url https://arxiv.org/abs/2412.20526