Möbius structures, quasi-metrics, and completeness

Fuente: arXiv
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Main Author: Incerti-Medici, Merlin
Format: Preprint
Published: 2017
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author Incerti-Medici, Merlin
author_facet Incerti-Medici, Merlin
contents We study cross ratios from an axiomatic viewpoint, also known as the study of Möbius spaces. We characterise cross ratios induced by quasi-metrics in terms of topological properties of their image. Furthermore, we generalise the notions of Cauchy-sequences and completeness to Möbius spaces and prove the existence of a unique completion under an extra assumption that, again, can be expressed in terms of the image of the cross ratio.
format Preprint
id arxiv_https___arxiv_org_abs_1706_10166
institution arXiv
publishDate 2017
record_format arxiv
spellingShingle Möbius structures, quasi-metrics, and completeness
Incerti-Medici, Merlin
Metric Geometry
51XX, 51Fxx, 51Hxx
We study cross ratios from an axiomatic viewpoint, also known as the study of Möbius spaces. We characterise cross ratios induced by quasi-metrics in terms of topological properties of their image. Furthermore, we generalise the notions of Cauchy-sequences and completeness to Möbius spaces and prove the existence of a unique completion under an extra assumption that, again, can be expressed in terms of the image of the cross ratio.
title Möbius structures, quasi-metrics, and completeness
topic Metric Geometry
51XX, 51Fxx, 51Hxx
url https://arxiv.org/abs/1706.10166