On a new convergence in topological spaces

In this paper, we introduce a new way-below relation in T0 topological spaces based on cuts and give the concepts of SI2-continuous spaces and weakly irreducible topologies. It is proved that a space is SI2-continuous if and only if its weakly irreducible topology is completely distributive under in...

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Main Authors: Ruan Xiao-jun, Xu Xiao-quan
Format: Article
Language:English
Published: De Gruyter 2019-12-01
Series:Open Mathematics
Subjects:
Online Access:https://doi.org/10.1515/math-2019-0123
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author Ruan Xiao-jun
Xu Xiao-quan
author_facet Ruan Xiao-jun
Xu Xiao-quan
author_sort Ruan Xiao-jun
collection DOAJ
description In this paper, we introduce a new way-below relation in T0 topological spaces based on cuts and give the concepts of SI2-continuous spaces and weakly irreducible topologies. It is proved that a space is SI2-continuous if and only if its weakly irreducible topology is completely distributive under inclusion order. Finally, we introduce the concept of 𝓓-convergence and show that a space is SI2-continuous if and only if its 𝓓-convergence with respect to the topology τSI2(X) is topological. In general, a space is SI-continuous if and only if its 𝓓-convergence with respect to the topology τSI(X) is topological.
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spelling doaj.art-d72e70f827cb45cbb8aba43d0a0845052022-12-21T21:35:29ZengDe GruyterOpen Mathematics2391-54552019-12-011711716172310.1515/math-2019-0123math-2019-0123On a new convergence in topological spacesRuan Xiao-jun0Xu Xiao-quan1Department of Mathematics, Nanchang University, Nanchang, 330031, ChinaSchool of Mathematics and Statistics, Minnan Normal University, Zhangzhou, 363000, ChinaIn this paper, we introduce a new way-below relation in T0 topological spaces based on cuts and give the concepts of SI2-continuous spaces and weakly irreducible topologies. It is proved that a space is SI2-continuous if and only if its weakly irreducible topology is completely distributive under inclusion order. Finally, we introduce the concept of 𝓓-convergence and show that a space is SI2-continuous if and only if its 𝓓-convergence with respect to the topology τSI2(X) is topological. In general, a space is SI-continuous if and only if its 𝓓-convergence with respect to the topology τSI(X) is topological.https://doi.org/10.1515/math-2019-0123s2-continuous posetweakly irreducible topologysi2-continuous space𝓓-convergence06b3506b7554f05
spellingShingle Ruan Xiao-jun
Xu Xiao-quan
On a new convergence in topological spaces
Open Mathematics
s2-continuous poset
weakly irreducible topology
si2-continuous space
𝓓-convergence
06b35
06b75
54f05
title On a new convergence in topological spaces
title_full On a new convergence in topological spaces
title_fullStr On a new convergence in topological spaces
title_full_unstemmed On a new convergence in topological spaces
title_short On a new convergence in topological spaces
title_sort on a new convergence in topological spaces
topic s2-continuous poset
weakly irreducible topology
si2-continuous space
𝓓-convergence
06b35
06b75
54f05
url https://doi.org/10.1515/math-2019-0123
work_keys_str_mv AT ruanxiaojun onanewconvergenceintopologicalspaces
AT xuxiaoquan onanewconvergenceintopologicalspaces