Results 11 to 20 of about 3,058 (255)

Cauchy Sequences in Fuzzy Metric Spaces and Fixed Point Theorems [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2023
In this paper, contractive mappings of \CM{} type in fuzzy metric spaces are studied. A class $\Psi_1$ of gauge functions $\psi:(0,1]\to(0,1]$ such that, for any $r\in(0,1)$, there exists $\rho\in(r,1)$ such that $1-r> \tau >1-\rho$ implies $\psi(\tau ...
Mortaza Abtahi
doaj   +1 more source

Estimation of fuzzy metric spaces from ordinary metric spaces

open access: yesRatio Mathematica, 2021
In this paper we estimate the new way for analyzing the fuzzy metric spaces from ordinary metric spaces using fuzzy fixed point theorem and vice versa.
P Kumar Senthil, Thiruveni Packirisamy
doaj   +1 more source

On Pentagonal Controlled Fuzzy Metric Spaces with an Application to Dynamic Market Equilibrium

open access: yesJournal of Function Spaces, 2022
In this manuscript, we coined pentagonal controlled fuzzy metric spaces and fuzzy controlled hexagonal metric space as generalizations of fuzzy triple controlled metric spaces and fuzzy extended hexagonal b-metric spaces.
Aftab Hussain   +3 more
doaj   +1 more source

Meir–Keeler Fixed-Point Theorems in Tripled Fuzzy Metric Spaces

open access: yesMathematics, 2023
In this paper, we first propose the concept of a family of quasi-G-metric spaces corresponding to the tripled fuzzy metric spaces (or G-fuzzy metric spaces). Using their properties, we give the characterization of tripled fuzzy metrics.
Hui Yang
doaj   +1 more source

On completable fuzzy metric spaces [PDF]

open access: yesFuzzy Sets and Systems, 2015
In this paper we construct a non-completable fuzzy metric space in the sense of George and Veeramani which allows to answer an open question related to continuity on the real parameter t. In addition, the constructed space is not strong (non-Archimedean).
Valentín Gregori   +2 more
openaire   +8 more sources

Fuzzy partial metric spaces [PDF]

open access: yesInternational Journal of General Systems, 2018
[EN] In this paper we provide a concept of fuzzy partial metric space (X, P, ¿) as an extension to fuzzy setting in the sense of Kramosil and Michalek, of the concept of partial metric due to Matthews. This extension has been defined using the residuum operator ¿¿ associated to a continuous t-norm ¿ and without any extra condition on ¿.
Valentín Gregori   +2 more
openaire   +3 more sources

Some New Aspects in the Intuitionistic Fuzzy and Neutrosophic Fixed Point Theory

open access: yesJournal of Function Spaces, 2022
In this manuscript, we use the concepts of continuous t-norms and continuous t-conorms to introduce some definitions, in which intuitionistic fuzzy rectangular metric spaces, intuitionistic fuzzy rectangular metric-like spaces, intuitionistic fuzzy ...
Aftab Hussain   +2 more
doaj   +1 more source

Concerning Fuzzy b-Metric Spaces

open access: yesMathematics, 2023
In an article published in 2015, Hussain et al. introduced a notion of a fuzzy b-metric space and obtained some fixed point theorems for this kind of space.
Salvador Romaguera
doaj   +1 more source

Some Properties of Lebesgue Fuzzy Metric Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2021
In this paper, we establish a sequential characterisation of Lebesgue fuzzy metric and explore the relationship between Lebesgue, weak $G$-complete and compact fuzzy metric spaces.
Sugata Adhya, Atasi Deb Ray
doaj   +1 more source

Derivable Single Valued Neutrosophic Graphs Based on KM-Fuzzy Metric

open access: yesIEEE Access, 2020
In this paper we consider the concept of KM-fuzzy metric spaces and we introduce a novel concept of KM-single valued neutrosophic metric graphs based on KM-fuzzy metric spaces.
Mohammad Hamidi, Florentin Smarandache
doaj   +1 more source

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