Results 21 to 30 of about 488,813 (304)

Best Proximity Pair Theorems for Multifunctions with Open Fibres

open access: bronzeJournal of Approximation Theory, 2000
Let \(A\) and \(B\) be non-empty subsets of a normed linear space \(E\), and let \(T:A\to 2^B\) be a convex multi-valued function with open fibres \(T^{-1}(y)\) (i.e.) \(\{x\in X:y\in Tx\}\). For an element \(x_0\in A\) sufficient conditions are found so that \(\text{dist}(x_0, Tx_0)= \text{dist}(A,B)\).
S. Sadiq Basha, P. Veeramani
semanticscholar   +5 more sources

Best Proximity Pairs for Upper Semicontinuous Set-Valued Maps in Hyperconvex Metric Spaces [PDF]

open access: goldFixed Point Theory and Applications, 2009
A best proximity pair for a set-valued map F:A⊸B with respect to a map g:A→A is defined, and new existence theorems of best proximity pairs for upper semicontinuous set-valued maps with respect to a homeomorphism are proved in hyperconvex ...
R. P. Agarwal   +3 more
doaj   +2 more sources

Approximation of best proximity pair for noncyclic relatively ρ-nonexpansive mappings in modular spaces endowed with a graph

open access: goldJournal of Mathematics and Computer Science, 2022
In this work, at first we prove an existence result of best proximity pair for noncyclic relatively ρnonexpansive mapping in the setting of modular spaces endowed with a convex directed graph. Furthermore, we study the convergence of a pair of sequences (
Nour-eddine El Harmouchi   +2 more
openalex   +2 more sources

Cyclic (noncyclic) phi-condensing operator and its application to a system of differential equations [PDF]

open access: yesNonlinear Analysis, 2019
We establish a best proximity pair theorem for noncyclic φ-condensing operators in strictly convex Banach spaces by using a measure of noncompactness. We also obtain a counterpart result for cyclic φ-condensing operators in Banach spaces to guarantee the
Moosa Moosa Gabeleh   +2 more
doaj   +5 more sources

Darbo type best proximity point (pair) results using measure of noncompactness with application [PDF]

open access: goldFixed Point Theory, 2022
. Primarily this work intends to investigate the existence of best proximity points (pairs) for new classes of cyclic (noncyclic) mappings via simulation functions and measure of noncompact-ness.
Moosa Gabeleh   +2 more
openalex   +2 more sources

b-metric spaces and the related approximate best proximity pair results using contraction mappings

open access: goldAdvances in Fixed Point Theory
: The aim of this paper is to prove some new approximate best proximity pair theorems on b -metric spaces using contraction mappings, including P -Bianchini contraction, P − B contraction, etc.
K. Saravanan, V. Piramanantham
openalex   +2 more sources

Generalized common best proximity point results in fuzzy multiplicative metric spaces

open access: yesAIMS Mathematics, 2023
In this manuscript, we prove the existence and uniqueness of a common best proximity point for a pair of non-self mappings satisfying the iterative mappings in a complete fuzzy multiplicative metric space.
Umar Ishtiaq   +3 more
doaj   +2 more sources

Cyclic pairs and common best proximity points in uniformly convex Banach spaces

open access: goldOpen Mathematics, 2017
In this article, we survey the existence, uniqueness and convergence of a common best proximity point for a cyclic pair of mappings, which is equivalent to study of a solution for a nonlinear programming problem in the setting of uniformly convex Banach ...
Gabeleh Moosa   +3 more
doaj   +3 more sources

Application of best proximity point(pair) theorem and measure of noncompactness to a system of integro differential equations in Banach space

open access: bronzeFilomat
This article explores the existence of an optimal solution for our proposed system of integro differential equations in Banach space by generalizing the best proximity point (pair) theorem and utilizing a new contraction operator.
Mallika Sarmah, Anupam Das, Dipak Sarma
openalex   +2 more sources

Best Proximity Pairs in Ultrametric Spaces [PDF]

open access: greenp-Adic Numbers, Ultrametric Analysis and Applications, 2021
In the present paper, we study the existence of best proximity pairs in ultrametric spaces. We show, under suitable assumptions, that the proximinal pair $(A,B)$ has a best proximity pair. As a consequence we generalize a well known best approximation result and we derive some fixed point theorems.
Karim Chaira   +2 more
  +7 more sources

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