★-quasi-pseudometrics on algebraic structures

[EN] In this paper, we introduce some concepts of ★-(quasi)-pseudometric spaces, and give an example which shows that there is a ★-quasi-pseudometric space which is not a quasi-pseudometric space. We also study the conditions under which ★-quasi-pseudometric semitopological groups are paratopologica...

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Detalhes bibliográficos
Autores: He, Shi-Yao, Jin, Ying-Ying, Xie, Li-Hong
Tipo de documento: artigo
Data de publicação:2023
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositório:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglês
OAI Identifier:oai:riunet.upv.es:10251/199728
Acesso em linha:https://riunet.upv.es/handle/10251/199728
Access Level:Acceso aberto
Palavra-chave:Topological group
Paratopological groups
Topological semigroup
Invariant ★-(quasi-)pseudometric
Descrição
Resumo:[EN] In this paper, we introduce some concepts of ★-(quasi)-pseudometric spaces, and give an example which shows that there is a ★-quasi-pseudometric space which is not a quasi-pseudometric space. We also study the conditions under which ★-quasi-pseudometric semitopological groups are paratopological groups or topological groups.