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Main Author: Nxumalo, Mbekezeli
Format: Preprint
Published: 2024
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Online Access:https://arxiv.org/abs/2407.14755
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author Nxumalo, Mbekezeli
author_facet Nxumalo, Mbekezeli
contents In locale theory, a sublocale is said to be remote in case it misses every nowhere dense sublocale. In this paper, we introduce and study a new class of sublocales in the category of bilocales, namely (i,j)-remote sublocales. These are bilocalic counterparts of remote sublocales and are the sublocales missing every (i,j)-nowhere dense sublocale, with (i,j)-nowhere dense sublocales being bilocalic counterparts of (τ_{i},τ_{j})-nowhere dense subsets in bitopological spaces. A comprehensive study of (i,j)-nowhere dense sublocales is given and we show that in the class of balanced bilocales, a sublocale is (i,j)-nowhere dense if and only if its bilocale closure is nowhere dense. We also consider weakly (i,j)-remote sublocales which are those sublocales missing every clopen (i,j)-nowhere dense sublocale. Furthermore, we extend (i,j)-remoteness to the categories of bitopological spaces as well as normed lattices. In the class of \sup-T_{D} bitopological spaces, a subset A of a bitopological space (X,τ_{1},τ_{2}) is (τ_{i},τ_{j})-remote if and only if the induced sublocale \widetilde{A} of τ_{1}\veeτ_{2} is (i,j)-remote.
format Preprint
id arxiv_https___arxiv_org_abs_2407_14755
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Remoteness in the category of bilocales
Nxumalo, Mbekezeli
General Topology
06D22
In locale theory, a sublocale is said to be remote in case it misses every nowhere dense sublocale. In this paper, we introduce and study a new class of sublocales in the category of bilocales, namely (i,j)-remote sublocales. These are bilocalic counterparts of remote sublocales and are the sublocales missing every (i,j)-nowhere dense sublocale, with (i,j)-nowhere dense sublocales being bilocalic counterparts of (τ_{i},τ_{j})-nowhere dense subsets in bitopological spaces. A comprehensive study of (i,j)-nowhere dense sublocales is given and we show that in the class of balanced bilocales, a sublocale is (i,j)-nowhere dense if and only if its bilocale closure is nowhere dense. We also consider weakly (i,j)-remote sublocales which are those sublocales missing every clopen (i,j)-nowhere dense sublocale. Furthermore, we extend (i,j)-remoteness to the categories of bitopological spaces as well as normed lattices. In the class of \sup-T_{D} bitopological spaces, a subset A of a bitopological space (X,τ_{1},τ_{2}) is (τ_{i},τ_{j})-remote if and only if the induced sublocale \widetilde{A} of τ_{1}\veeτ_{2} is (i,j)-remote.
title Remoteness in the category of bilocales
topic General Topology
06D22
url https://arxiv.org/abs/2407.14755