Results 1 to 10 of about 4,089 (118)

On measure of noncompactness in variable exponent Lebesgue spaces and applications to integral equations

open access: yesJournal of Inequalities and Applications, 2023
A novel measure of noncompactness is defined in variable exponent Lebesgue spaces L p ( ⋅ ) $L^{p(\cdot )}$ on an unbounded domain R + $\mathbb{R}^{+}$ and its properties are examined.
Mohamed M. A. Metwali
doaj   +1 more source

Solving nonlinear and dynamic programming equations on extended b-metric spaces with the fixed-point technique

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering, 2022
In this article, we present an approach to solve a wide range of nonlinear equations formulated in extended b-metric spaces based on a new fixed-point theorem on these spaces.
Abdelkader Belhenniche   +3 more
doaj   +1 more source

Best proximity point results and application to a system of integro-differential equations

open access: yesAdvances in Difference Equations, 2021
In this work, we solve the system of integro-differential equations (in terms of Caputo–Fabrizio calculus) using the concepts of the best proximity pair (point) and measure of noncompactness.
Anupam Das   +3 more
doaj   +1 more source

Inequalities for integral operators in Hölder–Morrey spaces on differential forms

open access: yesJournal of Inequalities and Applications, 2023
The Hölder–Morrey spaces Λ κ p , τ ( Ω , ∧ l ) $\Lambda _{\kappa}^{p,\tau}(\Omega ,\wedge ^{l})$ are proposed in this paper. The imbedding inequalities for homotopy operator are derived in Hölder–Morrey spaces on differential forms. The Hölder continuity
Xuexin Li, Jianwei Wang, Ning Pan
doaj   +1 more source

Integro-differential equations with bounded operators in Banach spaces [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
The paper investigates integro-differential equations in Banach spaces with operators, which are a composition of convolution and differentiation operators.
V.E. Fedorov, A.D. Godova, B.T. Kien
doaj   +3 more sources

Shifted ultraspherical pseudo-Galerkin method for approximating the solutions of some types of ordinary fractional problems

open access: yesAdvances in Difference Equations, 2021
In this work, a technique for finding approximate solutions for ordinary fraction differential equations (OFDEs) of any order has been proposed. The method is a hybrid between Galerkin and collocation methods.
Mohamed Abdelhakem   +3 more
doaj   +1 more source

Existence of solutions for an infinite system of Hilfer fractional boundary value problems in tempered sequence spaces

open access: yesAlexandria Engineering Journal, 2023
This article aims to study the existence of the solutions to the infinite system of Hilfer fractional differential equations in tempered sequence spaces.
Inzamamul Haque   +2 more
doaj   +1 more source

Almost-periodicity in linear topological spaces and applications to abstract differential equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
Let E be a complete locally convex space (l.c.s.) and f:R→E a continuous function; then f is said to be almost-periodic (a.p.) if, for every neighbourhood (of the origin in E) U, there exists ℓ=ℓ(U)>0 such that every interval [a,a+ℓ] of the real line ...
Gaston Mandata N'Guerekata
doaj   +1 more source

On the Bohr transform of almost-periodic solutions for some differential equations in abstract spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We consider abstract differential equations of the form u′(t)=Au(t)+f(t) or u″(t)=Au(t)+f(t) in Banach spaces X, where f(⋅), ℝ→X is almost-periodic, while A is a linear operator, 𝒟(A)⊂X→X.
Samuel Zaidman
doaj   +1 more source

Almost automorphic mild solutions to some semilinear abstract differential equations with deviated argument in Fréchet spaces

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2006
In this paper we consider the semilinear differential equation with deviated argument in a Fréchet space $x^{\prime}(t) = A x(t) + f(t, x(t), x[\alpha(x(t),t)]),$ $t \in {\mathbb{R}}$, where $A$ is the infinitesimal (bounded) generator of a $C_{0 ...
C. Gal
doaj   +1 more source

Home - About - Disclaimer - Privacy