On Soft <i>ω<sub>δ</sub></i>-Open Sets and Some Decomposition Theorems

In this paper, we present a novel family of soft sets named “soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>ω</mi><mi>δ</mi></msub></semantics></math><...

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Main Authors: Dina Abuzaid, Samer Al-Ghour, Monia Naghi
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/12/6/924
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author Dina Abuzaid
Samer Al-Ghour
Monia Naghi
author_facet Dina Abuzaid
Samer Al-Ghour
Monia Naghi
author_sort Dina Abuzaid
collection DOAJ
description In this paper, we present a novel family of soft sets named “soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>ω</mi><mi>δ</mi></msub></semantics></math></inline-formula>-open sets”. We find that this class constitutes a soft topology that lies strictly between the soft topologies of soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>δ</mi></semantics></math></inline-formula>-open sets and soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi>ω</mi><mn>0</mn></msup></semantics></math></inline-formula>-open sets. Also, we introduce certain sufficient conditions for the equivalence between this new soft topology and several existing soft topologies. Moreover, we verify several relationships that contain soft covering properties, such as soft compactness and soft Lindelofness, which are related to this new soft topology. Furthermore, in terms of the soft interior operator in certain soft topologies, we define four classes of soft sets. Via them, we obtain new decomposition theorems for soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>δ</mi></semantics></math></inline-formula>-openness and soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>θ</mi></semantics></math></inline-formula>-openness, and we characterize the soft topological spaces that have the soft “semi-regularization property”. In addition, via soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>ω</mi><mi>δ</mi></msub></semantics></math></inline-formula>-open sets, we introduce and investigate a new class of soft functions named “soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>ω</mi><mi>δ</mi></msub></semantics></math></inline-formula>-continuous functions”. Finally, we look into the connections between the newly proposed soft concepts and their counterparts in classical topological spaces.
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spelling doaj.art-cf76f06fb8e74fb99d48f39ff19c1abc2024-03-27T13:53:19ZengMDPI AGMathematics2227-73902024-03-0112692410.3390/math12060924On Soft <i>ω<sub>δ</sub></i>-Open Sets and Some Decomposition TheoremsDina Abuzaid0Samer Al-Ghour1Monia Naghi2Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaDepartment of Mathematics and Statistics, Jordan University of Science and Technology, Irbid 22110, JordanDepartment of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaIn this paper, we present a novel family of soft sets named “soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>ω</mi><mi>δ</mi></msub></semantics></math></inline-formula>-open sets”. We find that this class constitutes a soft topology that lies strictly between the soft topologies of soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>δ</mi></semantics></math></inline-formula>-open sets and soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi>ω</mi><mn>0</mn></msup></semantics></math></inline-formula>-open sets. Also, we introduce certain sufficient conditions for the equivalence between this new soft topology and several existing soft topologies. Moreover, we verify several relationships that contain soft covering properties, such as soft compactness and soft Lindelofness, which are related to this new soft topology. Furthermore, in terms of the soft interior operator in certain soft topologies, we define four classes of soft sets. Via them, we obtain new decomposition theorems for soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>δ</mi></semantics></math></inline-formula>-openness and soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>θ</mi></semantics></math></inline-formula>-openness, and we characterize the soft topological spaces that have the soft “semi-regularization property”. In addition, via soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>ω</mi><mi>δ</mi></msub></semantics></math></inline-formula>-open sets, we introduce and investigate a new class of soft functions named “soft <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>ω</mi><mi>δ</mi></msub></semantics></math></inline-formula>-continuous functions”. Finally, we look into the connections between the newly proposed soft concepts and their counterparts in classical topological spaces.https://www.mdpi.com/2227-7390/12/6/924soft <i>δ</i>-open setssoft <i>θ</i>-open setssoft <i>ω</i><sup>0</sup>-open setssuper-continuitysoft generated soft topological spaces
spellingShingle Dina Abuzaid
Samer Al-Ghour
Monia Naghi
On Soft <i>ω<sub>δ</sub></i>-Open Sets and Some Decomposition Theorems
Mathematics
soft <i>δ</i>-open sets
soft <i>θ</i>-open sets
soft <i>ω</i><sup>0</sup>-open sets
super-continuity
soft generated soft topological spaces
title On Soft <i>ω<sub>δ</sub></i>-Open Sets and Some Decomposition Theorems
title_full On Soft <i>ω<sub>δ</sub></i>-Open Sets and Some Decomposition Theorems
title_fullStr On Soft <i>ω<sub>δ</sub></i>-Open Sets and Some Decomposition Theorems
title_full_unstemmed On Soft <i>ω<sub>δ</sub></i>-Open Sets and Some Decomposition Theorems
title_short On Soft <i>ω<sub>δ</sub></i>-Open Sets and Some Decomposition Theorems
title_sort on soft i ω sub δ sub i open sets and some decomposition theorems
topic soft <i>δ</i>-open sets
soft <i>θ</i>-open sets
soft <i>ω</i><sup>0</sup>-open sets
super-continuity
soft generated soft topological spaces
url https://www.mdpi.com/2227-7390/12/6/924
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