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Studies on ultraquasi-pseudometrics and orderings

Ultraquasi-pseudometric spaces even though quite simple in concept, as it is easily obtained by altering the usual triangle inequality property, still yield interesting results. Indeed, a natural question that should arise is how does switching to the strong triangle inequality affect some of the re...

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Main Author: Solofomananirina Tiantsoa, Francky Mathieu
Other Authors: Künzi, Hans-Peter A
Format: Thesis
Language:English
Published: Department of Mathematics and Applied Mathematics 2018
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access_status_str Open Access
author Solofomananirina Tiantsoa, Francky Mathieu
author2 Künzi, Hans-Peter A
author_browse Künzi, Hans-Peter A
Solofomananirina Tiantsoa, Francky Mathieu
author_facet Künzi, Hans-Peter A
Solofomananirina Tiantsoa, Francky Mathieu
author_sort Solofomananirina Tiantsoa, Francky Mathieu
collection Thesis
description Ultraquasi-pseudometric spaces even though quite simple in concept, as it is easily obtained by altering the usual triangle inequality property, still yield interesting results. Indeed, a natural question that should arise is how does switching to the strong triangle inequality affect some of the results we already know about quasi-pseudometrics. On some points we get similar results to those of when we have the standard triangle inequality, but the general observation is that dealing with the strong triangle inequality is easier. Of course, there are results that cannot be obtained without the "ultra-property". A fast rundown on those effects is then deemed necessary to begin with. Also, since we cannot go through every single result on quasi-pseudometrics we then need to localize our observations, that is why in the first part we restrained our observations on the results from Gaba and Künzi about splitting metrics. Also, we will see some particular algorithms and connections to the bicompletion, joincompact ultraquasi-metric spaces and the old construction of a total order by Herrlich.
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institution University of Cape Town (South Africa)
language eng
last_indexed 2026-06-10T12:33:31.121Z
license_str Not specified — see source repository
provenance_str_mv Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository
publishDate 2018
publishDateRange 2018
publishDateSort 2018
publisher Department of Mathematics and Applied Mathematics
publisherStr Department of Mathematics and Applied Mathematics
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source_str UCTD — University of Cape Town Open Access Repository
spelling oai:open.uct.ac.za:11427/28113 Studies on ultraquasi-pseudometrics and orderings Solofomananirina Tiantsoa, Francky Mathieu Künzi, Hans-Peter A Ultraquasi-pseudometric spaces even though quite simple in concept, as it is easily obtained by altering the usual triangle inequality property, still yield interesting results. Indeed, a natural question that should arise is how does switching to the strong triangle inequality affect some of the results we already know about quasi-pseudometrics. On some points we get similar results to those of when we have the standard triangle inequality, but the general observation is that dealing with the strong triangle inequality is easier. Of course, there are results that cannot be obtained without the "ultra-property". A fast rundown on those effects is then deemed necessary to begin with. Also, since we cannot go through every single result on quasi-pseudometrics we then need to localize our observations, that is why in the first part we restrained our observations on the results from Gaba and Künzi about splitting metrics. Also, we will see some particular algorithms and connections to the bicompletion, joincompact ultraquasi-metric spaces and the old construction of a total order by Herrlich. 2018-05-25T07:40:01Z 2018-05-25T07:40:01Z 2018 Master Thesis Masters MSc http://hdl.handle.net/11427/28113 eng application/pdf Department of Mathematics and Applied Mathematics Faculty of Science University of Cape Town
spellingShingle Solofomananirina Tiantsoa, Francky Mathieu
Studies on ultraquasi-pseudometrics and orderings
thesis_degree_str Master's
title Studies on ultraquasi-pseudometrics and orderings
title_full Studies on ultraquasi-pseudometrics and orderings
title_fullStr Studies on ultraquasi-pseudometrics and orderings
title_full_unstemmed Studies on ultraquasi-pseudometrics and orderings
title_short Studies on ultraquasi-pseudometrics and orderings
title_sort studies on ultraquasi pseudometrics and orderings
url http://hdl.handle.net/11427/28113
work_keys_str_mv AT solofomananirinatiantsoafranckymathieu studiesonultraquasipseudometricsandorderings