Results 1 to 10 of about 11,243,155 (297)

Construction Material Selection by Using Multi-Attribute Decision Making Based on q-Rung Orthopair Fuzzy Aczel–Alsina Aggregation Operators

open access: yesApplied Sciences, 2022
A contribution of this article is to introduce new q-rung Orthopair fuzzy (q-ROF) aggregation operators (AOs) as the consequence of Aczel–Alsina (AA) t-norm (TN) (AATN) and t-conorm (TCN) (AATCN) and their specific advantages in handling real-world ...
Muhammad Rizwan Khan   +3 more
doaj   +1 more source

Optimal Approximate Solution of Coincidence Point Equations in Fuzzy Metric Spaces

open access: yesMathematics, 2019
The purpose of this paper is to introduce α f -proximal H -contraction of the first and second kind in the setup of complete fuzzy metric space and to obtain optimal coincidence point results.
Naeem Saleem   +2 more
doaj   +1 more source

T-Fuzzy Subhypernear-Modules

open access: yesFuzzy Information and Engineering, 2023
The objective of this study is to investigate the fuzzy subhypernear-modules over hypernear-ring by using a triangular norm, which is T-fuzzy subhypernear-modules are a generalization of fuzzy submodules of hyper near-modules, and some related properties
Serkan Onar   +3 more
doaj   +1 more source

Zs-contractive mappings and weak compatibility in fuzzy metric space [PDF]

open access: yesMathematica Moravica, 2019
The aim of this paper is to introduce Zs-contractive condition for a pair of self maps in a fuzzy metric space, which enlarges and unifies the existing fuzzy contractions (by Gregori and Sapena [4]), pscontraction (by Mihet [8]), Z-contractions (by ...
Jain Shobha, Jain Shishir
doaj  

Chebyshev type inequalities by means of copulas

open access: yesJournal of Inequalities and Applications, 2017
A copula is a function which joins (or ‘couples’) a bivariate distribution function to its marginal (one-dimensional) distribution functions. In this paper, we obtain Chebyshev type inequalities by utilising copulas.
Sever S Dragomir, Eder Kikianty
doaj   +1 more source

∗-fuzzy measure model for COVID-19 disease

open access: yesAdvances in Difference Equations, 2021
We introduce a mathematical model, namely, ∗-fuzzy measure model for COVID-19 disease and consider some properties of ∗-fuzzy measure such as Lebesque–Radon–Nikodym theorem.
Abbas Ghaffari, Reza Saadati
doaj   +1 more source

Some Fixed Point Theorems of Ćirić Type in Fuzzy Metric Spaces

open access: yesMathematics, 2020
The main aim of the current paper is the investigation of possibilities for improvements and generalizations contractive condition of Ćirić in the fuzzy metric spaces. Various versions of fuzzy contractive conditions are studied in two directions. First,
Dušan Rakić   +4 more
doaj   +1 more source

A Study of Generalized QL′-Implications

open access: yesMathematics, 2022
In this paper, we introduce and study the GQL′-operations. We prove that this class is a hyper class of the known class of QL′-operations. Similar to QL′-operations, GQL′-operations are not always fuzzy implications.
Dimitrios S. Grammatikopoulos   +1 more
doaj   +1 more source

Fuzzy Caratheodory’s Theorem and Outer ∗-Fuzzy Measure

open access: yesAxioms, 2022
The goal of this paper is to introduce two new concepts ∗-fuzzy premeasure and outer ∗-fuzzy measure, and to further prove some properties, such as Caratheodory’s Theorem, as well as the unique extension of ∗-fuzzy premeasure.
Radko Mesiar   +3 more
doaj   +1 more source

on associative copulas uniformly close

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1988
Associative copulas uniformly close are studied with detail. Some classical results of Ulam and Hyers as well as the representation theorem for associative functions play a fundamental role.
C. Alsina, R. Ger
doaj   +1 more source

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