1. On nonlinear fuzzy set-valued Θ-contractions with applications
- Author
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Khadijah M. Abualnaja, Saima Rashid, Mohammed Shehu Shagari, and Monairah Alansari
- Subjects
Pure mathematics ,fuzzy set ,Binary relation ,General Mathematics ,010102 general mathematics ,Fuzzy set ,fuzzy set-valued map ,multivalued mapping ,Fixed-point theorem ,02 engineering and technology ,Fixed point ,01 natural sciences ,Fuzzy logic ,Nonlinear system ,fixed point ,metric-like space ,0202 electrical engineering, electronic engineering, information engineering ,QA1-939 ,020201 artificial intelligence & image processing ,0101 mathematics ,Partially ordered set ,Mathematics ,Complement (set theory) ,θ-contraction - Abstract
Among various improvements in fuzzy set theory, a progressive development has been in process to investigate fuzzy analogues of fixed point theorems of the classical fixed point results. In this direction, taking the ideas of $ \theta $-contractions as well as Feng-Liu's approach into account, some new fuzzy fixed point results for nonlinear fuzzy set-valued $ \theta $-contractions in the framework of metric-like spaces are introduced in this paper without using the usual Pompeiu-Hausorff distance function. Our established concepts complement, unify and generalize a few important fuzzy and classical fixed point theorems in the corresponding literature. A handful of these special cases of our notions are pointed and analyzed. Some of the main results herein are further applied to derive their analogues in metric-like spaces endowed with partial ordering and binary relations. Comparisons and nontrivial examples are given to authenticate the hypotheses and significance of the obtained ideas.
- Published
- 2021
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