Comparison Function and Boyd–Wong–Type Contractions in Kaleva–Seikkala’s Type Fuzzy b-Metric Space

In this article, we study the existence and uniqueness of fixed points for mappings in Kaleva–Seikkala’s type fuzzy b-metric spaces. Nonlinear contractions of the comparison function and Boyd–Wong’s type are considered, and several new fixed point theorems for these contractions in complete Kaleva-S...

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Main Authors: Jiaojiao Wu, Fei He, Shu-fang Li, Xinyan Zhang
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Journal of Function Spaces
Online Access:http://dx.doi.org/10.1155/jofs/5982890
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author Jiaojiao Wu
Fei He
Shu-fang Li
Xinyan Zhang
author_facet Jiaojiao Wu
Fei He
Shu-fang Li
Xinyan Zhang
author_sort Jiaojiao Wu
collection DOAJ
description In this article, we study the existence and uniqueness of fixed points for mappings in Kaleva–Seikkala’s type fuzzy b-metric spaces. Nonlinear contractions of the comparison function and Boyd–Wong’s type are considered, and several new fixed point theorems for these contractions in complete Kaleva-Seikkala’s type fuzzy b-metric spaces are presented. It is remarkable that the contractive conditions of our results do not depend on the space coefficient b. The presented work extends and improves some well-known results in the literature. Finally, as an application, we demonstrate a unique solution to both the Fredholm integral equation and the fractional differential equation.
format Article
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language English
publishDate 2025-01-01
publisher Wiley
record_format Article
series Journal of Function Spaces
spelling doaj-art-ff13e5f6be474c05a6e65a425b4c5cd62025-08-20T02:26:55ZengWileyJournal of Function Spaces2314-88882025-01-01202510.1155/jofs/5982890Comparison Function and Boyd–Wong–Type Contractions in Kaleva–Seikkala’s Type Fuzzy b-Metric SpaceJiaojiao Wu0Fei He1Shu-fang Li2Xinyan Zhang3School of Mathematical SciencesSchool of Mathematical SciencesSchool of Statistics and MathematicsSchool of Statistics and MathematicsIn this article, we study the existence and uniqueness of fixed points for mappings in Kaleva–Seikkala’s type fuzzy b-metric spaces. Nonlinear contractions of the comparison function and Boyd–Wong’s type are considered, and several new fixed point theorems for these contractions in complete Kaleva-Seikkala’s type fuzzy b-metric spaces are presented. It is remarkable that the contractive conditions of our results do not depend on the space coefficient b. The presented work extends and improves some well-known results in the literature. Finally, as an application, we demonstrate a unique solution to both the Fredholm integral equation and the fractional differential equation.http://dx.doi.org/10.1155/jofs/5982890
spellingShingle Jiaojiao Wu
Fei He
Shu-fang Li
Xinyan Zhang
Comparison Function and Boyd–Wong–Type Contractions in Kaleva–Seikkala’s Type Fuzzy b-Metric Space
Journal of Function Spaces
title Comparison Function and Boyd–Wong–Type Contractions in Kaleva–Seikkala’s Type Fuzzy b-Metric Space
title_full Comparison Function and Boyd–Wong–Type Contractions in Kaleva–Seikkala’s Type Fuzzy b-Metric Space
title_fullStr Comparison Function and Boyd–Wong–Type Contractions in Kaleva–Seikkala’s Type Fuzzy b-Metric Space
title_full_unstemmed Comparison Function and Boyd–Wong–Type Contractions in Kaleva–Seikkala’s Type Fuzzy b-Metric Space
title_short Comparison Function and Boyd–Wong–Type Contractions in Kaleva–Seikkala’s Type Fuzzy b-Metric Space
title_sort comparison function and boyd wong type contractions in kaleva seikkala s type fuzzy b metric space
url http://dx.doi.org/10.1155/jofs/5982890
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AT feihe comparisonfunctionandboydwongtypecontractionsinkalevaseikkalastypefuzzybmetricspace
AT shufangli comparisonfunctionandboydwongtypecontractionsinkalevaseikkalastypefuzzybmetricspace
AT xinyanzhang comparisonfunctionandboydwongtypecontractionsinkalevaseikkalastypefuzzybmetricspace