Results 31 to 40 of about 555 (277)

Best Proximity Point Theorem for α ̃–ψ ̃-Contractive Type Mapping in Fuzzy Normed Space

open access: yesمجلة بغداد للعلوم, 2023
The best proximity point is a generalization of a fixed point that is beneficial when the contraction map is not a self-map. On other hand, best approximation theorems offer an approximate solution to the fixed point equation .
Raghad I. Sabri, Buthainah A. A. Ahmed
doaj   +1 more source

Fuzzy Bounded and Continuous Linear Operators on Standard Fuzzy Normed Spacesa [PDF]

open access: yesEngineering and Technology Journal, 2015
In this paper we introduce the definition of standard fuzzy normed space, then we discuss several properties after we give an example to illustrate this notion.
Jehad R. Kider, Rami M. Jameel
doaj   +1 more source

Generalized statistically convergent sequences of functions in fuzzy 2-normed spaces [PDF]

open access: yes, 2014
In this paper, we introduce a new type of convergence for a sequence of function, namely, ?-statistically convergent sequences of functions in fuzzy 2-normed space, which is a natural generalization of convergence in fuzzy 2-normed space.
Gürdal, Mehmet, Savaş, Ekrem
core   +3 more sources

Some Fixed Point Theorems in Fuzzy n-Normed Spaces [PDF]

open access: yes, 2010
The main purpose of this paper is to study the existence of a fixed points in fuzzy n-normed spaces. we proved our main results, a fixed point theorem for a self mapping and a common fixed point theorem for a pair of weakly compatible mappings on fuzzy n-
Rahmat, Mohamad Rafi Segi   +1 more
core   +1 more source

The Fuzzy Width Theory in the Finite-Dimensional Space and Sobolev Space

open access: yesMathematics, 2023
This paper aims to fuzzify the width problem of classical approximation theory. New concepts of fuzzy Kolmogorov n-width and fuzzy linear n-width are introduced on the basis of α-fuzzy distance which is induced by the fuzzy norm.
Yanyan Xu, Lu Sun, Hao Li, Guanggui Chen
doaj   +1 more source

On Functions Preserving Convergence of Series in Fuzzy n-Normed Spaces [PDF]

open access: yes, 2009
The purpose of this paper is to introduce finite convergence sequences and functions preserving convergence of series in fuzzy n-normed ...
Rahmat, Mohamad Rafi Segi, Elagan, Sayed
core   +1 more source

Invariant convergent and invariant ideal convergent sequence in intuitionistic fuzzy normed space

open access: yes, 2022
The main purpose of this paper is to introduce invariant convergence in intuitionistic fuzzy normed space. Following which we present some characteristics of this notion with respect to intuitionistic fuzzy norm.
Esi, Ayhan   +3 more
core   +1 more source

Mazur-Ulam type theorems for fuzzy normed spaces [PDF]

open access: yes, 2017
In this paper, we provide Mazur-Ulam type results for (not necessarily surjective) maps preserving equality of fuzzy distance defined between two fuzzy normed spaces. Our main goal is to study the additivity of such generalizations of fuzzy isometries.
M. Sanchis   +7 more
core   +1 more source

Near Fixed Point Theorems in the Space of Fuzzy Numbers

open access: yesMathematics, 2018
The fuzzy numbers are fuzzy sets owning some elegant mathematical structures. The space consisting of all fuzzy numbers cannot form a vector space because it lacks the concept of the additive inverse element.
Hsien-Chung Wu
doaj   +1 more source

Fixed point theorems for contractions in fuzzy normed spaces and intuitionistic fuzzy normed spaces [PDF]

open access: yesFixed Point Theory and Applications, 2013
Abstract In this paper, we prove that some coupled fixed point theorems and coupled coincidence point theorems for contractions in fuzzy normed spaces and intuitionistic fuzzy normed spaces can be directly deduced from fixed point theorems for contractions in fuzzy normed spaces. We also prove that these results are equivalent.
Zhu, Jiang   +2 more
openaire   +2 more sources

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