Results 1 to 10 of about 3,015 (138)

Solving discrete zero point problems with vector labeling [PDF]

open access: yes, 2005
AMS classifications: 47H10; 54H25; 55M20; 90C26; 90C33; 91B50;
Laan, G. van der   +2 more
core   +6 more sources

An intermediate value theorem in ordered Banach spaces [PDF]

open access: yes, 2012
We consider a monotone increasing operator in an ordered Banach space having $u_-$ and $u_+$ as a strong super- and subsolution, respectively. In contrast with the well studied case $u_+ < u_-$, we suppose that $u_- < u_+$.
Anna Oleynik   +6 more
core   +2 more sources

A system of additive functional equations in complex Banach algebras

open access: yesDemonstratio Mathematica, 2023
In this article, we solve the system of additive functional equations: 2f(x+y)−g(x)=g(y),g(x+y)−2f(y−x)=4f(x)\left\{\phantom{\rule[-1.25em]{}{0ex}}\begin{array}{l}2f\left(x+y)-g\left(x)=g(y),\\ g\left(x+y)-2f(y-x)=4f\left(x)\end{array}\right.
Paokanta Siriluk   +3 more
doaj   +1 more source

Equivalents of maximum principles for several spaces

open access: yesTopological Algebra and its Applications, 2022
According to our long-standing Metatheorem, certain maximum theorems can be equivalently reformulated to various types of fixed point theorems, and conversely.
Park Sehie
doaj   +1 more source

Extended Nb-cone metric spaces over Banach algebra with an application

open access: yesTopological Algebra and its Applications, 2022
In this manuscript, we present a new notion which is named as extended Nb-cone metric space over Banach algebra and investigate some fixed point results in the new setting.
Fernandez Jerolina   +2 more
doaj   +1 more source

A new result on Branciari metric space using (α, γ)-contractive mappings

open access: yesTopological Algebra and its Applications, 2022
In this work, a new common fixed point result by generalized contractive functions fulfilling the type of admissibility condition in a Hausdorff Branciari metric space with the support of C-functions, was obtained.
Patil Jayashree   +4 more
doaj   +1 more source

Fixed point Theorem for Interpolative Mappings in F-Mv-Metric Space with an Application

open access: yesTopological Algebra and its Applications, 2022
The aim of this paper is to prove fixed point results for Interpolativemappings in F-Mv-metric spaces with an application which cannot be obtained from the corresponding results in metric spaces.
Wangwe Lucas
doaj   +1 more source

Cyclic weak ϕ iterated function system

open access: yesTopological Algebra and its Applications, 2022
In this article, we are considering the cyclic weak ϕ-contraction and prove that the result is also true in Hausdorff metric space. We are constructing a cyclic weak ϕ iterated function system (IFS), which gives the self-referential set or attractor ...
Ullah Kifayat, Katiyar S. K.
doaj   +1 more source

Fixed points of dynamic processes of set-valued F-contractions and application to functional equations [PDF]

open access: yes, 2015
The article is a continuation of the investigations concerning F-contractions which have been recently introduced in [Wardowski in Fixed Point Theory Appl. 2012:94,2012]. The authors extend the concept of F-contractive mappings to the case of nonlinear F-
D Paesano   +10 more
core   +2 more sources

A Halpern-type algorithm for a common solution of nonlinear problems in Banach spaces

open access: yesTopological Algebra and its Applications, 2023
In this article, we propose a Halpern-type subgradient extragradient algorithm for solving a common element of the set of solutions of variational inequality problems for continuous monotone mappings and the set of f-fixed points of continuous f ...
Zegeye Habtu, Boikanyo Oganeditse A.
doaj   +1 more source

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