Towards Strong Convergence and Cauchy Sequences in Binary Metric Spaces

A Kuratowski topology is a topology specified in terms of closed sets rather than open sets. Recently, the binary metric was introduced as a symmetric, distributive-lattice-ordered magma-valued function of two variables satisfying a “triangle inequality” and subsequently proved that every Kuratowski...

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Main Authors: Shubham Yadav, Dhananjay Gopal, Parin Chaipunya, Juan Martínez-Moreno
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Axioms
Subjects:
Online Access:https://www.mdpi.com/2075-1680/11/8/383
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author Shubham Yadav
Dhananjay Gopal
Parin Chaipunya
Juan Martínez-Moreno
author_facet Shubham Yadav
Dhananjay Gopal
Parin Chaipunya
Juan Martínez-Moreno
author_sort Shubham Yadav
collection DOAJ
description A Kuratowski topology is a topology specified in terms of closed sets rather than open sets. Recently, the binary metric was introduced as a symmetric, distributive-lattice-ordered magma-valued function of two variables satisfying a “triangle inequality” and subsequently proved that every Kuratowski topology can be induced by such a binary metric. In this paper, we define the strong convergence of a sequence in a binary metric space and prove that strong convergence implies convergence. We state the conditions under which strong convergence is equivalent to convergence. We define a strongly Cauchy sequence and a strong complete binary metric space. Finally, we give the strong completion of all binary metric spaces with a countable indexing set.
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spelling doaj.art-6c77134037be4ec481983771906b0aea2023-11-30T23:11:14ZengMDPI AGAxioms2075-16802022-08-0111838310.3390/axioms11080383Towards Strong Convergence and Cauchy Sequences in Binary Metric SpacesShubham Yadav0Dhananjay Gopal1Parin Chaipunya2Juan Martínez-Moreno3Department of Applied Mathematics and Humanities, S. V. National Institute of Technology Surat, Surat 395007, IndiaDepartment of Mathematics, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur 495009, IndiaDepartment of Mathematics, King Mongkut’s University of Technology Thonburi, Bangkok 10140, ThailandDepartment of Mathematics, University of Jaén Campus Las Lagunillas s/n, 23071 Jaén, SpainA Kuratowski topology is a topology specified in terms of closed sets rather than open sets. Recently, the binary metric was introduced as a symmetric, distributive-lattice-ordered magma-valued function of two variables satisfying a “triangle inequality” and subsequently proved that every Kuratowski topology can be induced by such a binary metric. In this paper, we define the strong convergence of a sequence in a binary metric space and prove that strong convergence implies convergence. We state the conditions under which strong convergence is equivalent to convergence. We define a strongly Cauchy sequence and a strong complete binary metric space. Finally, we give the strong completion of all binary metric spaces with a countable indexing set.https://www.mdpi.com/2075-1680/11/8/383binary metricgeneralized metricconvergence in binary metric
spellingShingle Shubham Yadav
Dhananjay Gopal
Parin Chaipunya
Juan Martínez-Moreno
Towards Strong Convergence and Cauchy Sequences in Binary Metric Spaces
Axioms
binary metric
generalized metric
convergence in binary metric
title Towards Strong Convergence and Cauchy Sequences in Binary Metric Spaces
title_full Towards Strong Convergence and Cauchy Sequences in Binary Metric Spaces
title_fullStr Towards Strong Convergence and Cauchy Sequences in Binary Metric Spaces
title_full_unstemmed Towards Strong Convergence and Cauchy Sequences in Binary Metric Spaces
title_short Towards Strong Convergence and Cauchy Sequences in Binary Metric Spaces
title_sort towards strong convergence and cauchy sequences in binary metric spaces
topic binary metric
generalized metric
convergence in binary metric
url https://www.mdpi.com/2075-1680/11/8/383
work_keys_str_mv AT shubhamyadav towardsstrongconvergenceandcauchysequencesinbinarymetricspaces
AT dhananjaygopal towardsstrongconvergenceandcauchysequencesinbinarymetricspaces
AT parinchaipunya towardsstrongconvergenceandcauchysequencesinbinarymetricspaces
AT juanmartinezmoreno towardsstrongconvergenceandcauchysequencesinbinarymetricspaces