Results 1 to 10 of about 62,013 (161)

A new general integral transform for solving integral equations [PDF]

open access: yesJournal of Advanced Research, 2021
Introduction: Integral transforms are important to solve real problems. Appropriate choice of integral transforms helps to convert differential equations as well as integral equations into terms of an algebraic equation that can be solved easily.During ...
Hossein Jafari
doaj   +2 more sources

Efficient numerical technique for solution of delay Volterra-Fredholm integral equations using Haar wavelet [PDF]

open access: yesHeliyon, 2020
In this article, a computational Haar wavelet collocation technique is developed for the solution of linear delay integral equations. These equations include delay Fredholm, Volterra and Volterra-Fredholm integral equations.
Rohul Amin   +3 more
doaj   +2 more sources

On one coefficient inverse boundary value problem for a linear pseudoparabolic equation of the fourth order

open access: yesAIMS Mathematics, 2023
In the present work, we consider an inverse boundary value problem for a fourth order pseudo parabolic equation with periodic and integral condition.
Yashar Mehraliyev   +2 more
doaj   +1 more source

An inverse boundary value problem for a two-dimensional pseudo-parabolic equation of third order

open access: yesResults in Applied Mathematics, 2022
In the present work, we consider an inverse boundary value problem for a two-dimensional pseudo-parabolic equation of the third-order. Using analytical and operator-theoretic methods, as well as the Fourier method, the existence and uniqueness of the ...
Yashar T. Mehraliyev   +2 more
doaj   +1 more source

Optimal Control Problem for Non-linear Degenerate Parabolic Variation Inequality: Solvability and Attainability Issues

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2023
We investigate the optimal control problem with respect to coefficients of the degenerate parabolic variational inequality. Since problems of this type can have the Lavrentieff effect, we consider the optimal control problem in a class of so-called ...
Nina V. Kasimova   +2 more
doaj   +1 more source

An inverse boundary value problem for transverse vibrations of a bar

open access: yesBoundary Value Problems, 2022
In this article, we study an inverse problem (IP) for a fourth-order hyperbolic equation with nonlocal boundary conditions. This IP is reduced to the not self-adjoint boundary value problem (BVP) with corresponding boundary condition.
Yashar T. Mehraliyev   +4 more
doaj   +1 more source

Lyapunov Functionals in Integral Equations

open access: yesAxioms, 2023
Lyapunov functions/functionals have found their footing in Volterra integro-differential equations. This is not the case for integral equations, and it is therefore further explored in this paper.
Youssef N. Raffoul, Joseph Raffoul
doaj   +1 more source

Volterra–Stieltjes integral equations and impulsive Volterra–Stieltjes integral equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2020
In this paper, we prove existence and uniqueness of solutions of Volterra–Stieltjes integral equations using the Henstock–Kurzweil integral. Also, we prove that these equations encompass impulsive Volterra–Stieltjes integral equations and prove the ...
Edgardo Alvarez   +3 more
doaj   +1 more source

Optimal Control Problem for Some Degenerate Variation Inequality: Attainability Problem

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2018
We study an optimal control problem for degenerate elliptic variation inequality with degenerate weight function of potential type in the  so-called class of H-admissible solutions.
Nina V. Kasimova
doaj   +1 more source

Generalized Ponce’s inequality

open access: yesJournal of Inequalities and Applications, 2021
We provide a generalization of a remarkable inequality by A. C. Ponce whose consequences are essential in several fields, such as a characterization of Sobolev spaces or nonlocal modelization.
Julio Muñoz
doaj   +1 more source

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