Results 21 to 30 of about 65 (61)

Related fixed points for set valued mappings on two metric spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 23, Issue 3, Page 205-210, 2000., 2000
Some related fixed points theorems for set valued mappings on two complete and compact metric spaces are proved.
Brian Fisher, Duran Türkoglu
wiley   +1 more source

Some aspects of the n-ary orthogonal and b(αn,βn)-best approximations of b(αn,βn)-hypermetric spaces over Banach algebras

open access: yesDemonstratio Mathematica, 2023
In this article, a definition of a b(αn,βn){b}_{\left({\alpha }_{n},{\beta }_{n})}-best approximations of b(αn,βn){b}_{\left({\alpha }_{n},{\beta }_{n})}-hypermetric spaces over Banach algebras is given. Our objective is to prove the concept of extension
Nezhad Akbar Dehghan   +3 more
doaj   +1 more source

Some results on maximal elements

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 23, Issue 6, Page 409-413, 2000., 2000
We prove some results on maximal elements using the KKM‐map principle.
Antonio Carbone
wiley   +1 more source

Fixed points, intersection theorems, variational inequalities, and equilibrium theorems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 24, Issue 2, Page 73-93, 2000., 2000
From a fixed point theorem for compact acyclic maps defined on admissible convex sets in the sense of Klee, we first deduce collectively fixed point theorems, intersection theorems for sets with convex sections, and quasi‐equilibrium theorems. These quasi‐equilibrium theorems are applied to give simple and unified proofs of the known variational ...
Sehie Park
wiley   +1 more source

An extragradient iterative scheme for common fixed point problems and variational inequality problems with applications

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015
In this paper, by combining a modified extragradient scheme with the viscosity approximation technique, an iterative scheme is developed for computing the common element of the set of fixed points of a sequence of asymptotically nonexpansive mappings and
Petruşel Adrian, Sahu D.R., Sagar Vidya
doaj   +1 more source

A note on complementarity problem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 21, Issue 3, Page 621-623, 1998., 1998
In this paper we prove a result of complementarity problem where compact condition is somewhat relaxed.
Antonio Carbone
wiley   +1 more source

Some results on invariant approximation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 17, Issue 3, Page 483-487, 1994., 1993
In this paper results on Invariant approximations, extending and unifying earlier results are given. Several interesting results are derived as corollaries.
Antonio Carbone
wiley   +1 more source

Coincidences and secondary Nielsen numbers [PDF]

open access: yes, 2020
. Let f1, f2 : X m −→ Y n be maps between smooth connected manifolds of the indicated dimensions m and n. Can f1, f2 be deformed by homotopies until they are coincidence free (i.e. f1(x) = f2(x) for all x ∈ X )?
Ulrich Koschorke
core  

Fixed point results for multivalued mappings of Ćirić type via F-contractions on quasi metric spaces

open access: yesOpen Mathematics, 2020
In this paper, we present some fixed point results for multivalued mappings with both closed values and proximinal values on left K-complete quasi metric spaces. We also provide a nontrivial example to illustrate our results.
Shatanawi Wasfi, Altun Ishak, Dağ Hacer
doaj   +1 more source

On some fixed point theorems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 12, Issue 1, Page 61-64, 1989., 1987
In this paper we prove a fixed point theorem for inward mappings uing a well‐known result of Ky Fan type in Hilbert space setting.
D. Roux, S. P. Singh
wiley   +1 more source

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