Results 1 to 10 of about 98 (93)

Existence of Solutions for Nonlinear Integral Equations in Tempered Sequence Spaces via Generalized Darbo-Type Theorem

open access: yesJournal of Function Spaces, 2022
Two concepts—one of Darbo-type theorem and the other of Banach sequence spaces—play a very important and active role in ongoing research on existence problems.
S. A. Mohiuddine   +2 more
doaj   +2 more sources

Some New Generalization of Darbo’s Fixed Point Theorem and Its Application on Integral Equations

open access: yesMathematics, 2019
In this article, we propose some new fixed point theorem involving measure of noncompactness and control function. Further, we prove the existence of a solution of functional integral equations in two variables by using this fixed point theorem in Banach
Anupam Das, Bipan Hazarika, Poom Kumam
doaj   +3 more sources

Generalizations of Darbo’s fixed point theorem for new condensing operators with application to a functional integral equation

open access: yesDemonstratio Mathematica, 2019
In this paper, we provide some generalizations of the Darbo’s fixed point theorem associated with the measure of noncompactness and present some results on the existence of the coupled fixed point theorems for a special class of operators in a Banach ...
Rehman Habib ur   +2 more
doaj   +2 more sources

On the constrained and unconstrained controllability of semilinear Hilfer fractional systems [PDF]

open access: yesArchives of Control Sciences, 2023
In the paper finite-dimensional semilinear dynamical control systems described by fractional-order state equations with the Hilfer fractional derivative are discussed.
Beata Sikora
doaj   +1 more source

Solution of a Fractional Integral Equation Using the Darbo Fixed Point Theorem

open access: yesJournal of Mathematics, 2022
The concept of measure of noncompactness in a Banach space is used in this paper to extend some tripled fixed point theorems. We prove the existence of fractional integral equation solutions using a generalized Darbo fixed point theorem.
Bhuban Chandra Deuri   +3 more
doaj   +1 more source

An interpretation on controllability of Hilfer fractional derivative with nondense domain

open access: yesAlexandria Engineering Journal, 2022
Controllability results of Hilfer delay fractional derivative(HDFD) with nondense operator have been articulated in this article. Primary discussions were made on the existence of mild solution using the Banach contraction principle and continued with ...
C. Ravichandran   +4 more
doaj   +1 more source

A New Common Fixed Point Theorem for Three Commuting Mappings

open access: yesAxioms, 2020
In the present paper, we propose a common fixed point theorem for three commuting mappings via a new contractive condition which generalizes fixed point theorems of Darbo, Hajji and Aghajani et al.
Meryeme El Harrak, Ahmed Hajji
doaj   +1 more source

Generalization of Darbo-type theorem and application on existence of implicit fractional integral equations in tempered sequence spaces

open access: yesAlexandria Engineering Journal, 2022
The aim of this work is to give some fixed point results based on the technique of measure of noncompactness which extend the classical Darbo’s theorem.
Anupam Das   +3 more
doaj   +1 more source

Evolution equations in Fréchet spaces

open access: yesJournal of Mathematical Sciences and Modelling, 2018
This paper deals with the existence of mild solutions for a class of evolution equations. The technique used is a generalization of the classical Darbo fixed point theorem for Fr\'{e}chet spaces associated with the concept of measure of noncompactness.
Mouffak Benchohra   +3 more
doaj   +1 more source

On the Darboux problem involving the distributional Henstock–Kurzweil integral

open access: yesBoundary Value Problems, 2018
In this paper, we apply the method associated with the technique of measure of noncompactness and the Darbo fixed point theorem to study the existence of solutions of the Darboux problem involving the distributional Henstock–Kurzweil integral. Meanwhile,
Guoju Ye, Rong Cheng, Wei Liu, Hui Mei
doaj   +1 more source

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