Results 41 to 50 of about 110,191 (226)

Existence, Uniqueness and Stability of Periodic Solution for Nonlinear System of Integro-Differential Equations

open access: yesScience Journal of University of Zakho, 2017
In this paper, we investigate the existence, uniqueness, and stability of the periodic solution for the system of nonlinear integro-differential equations by using the numerical-analytic methods for investigating the solutions and the periodic solutions ...
Raad N. Butris   +2 more
doaj   +1 more source

Advanced action in classical electrodynamics [PDF]

open access: yes, 2008
The time evolution of a charged point particle is governed by a second-order integro-differential equation that exhibits advanced effects, in which the particle responds to an external force before the force is applied.
A D Boozer   +6 more
core   +2 more sources

Computer simulation of oscillatory processes of viscoelastic elements of thin-walled structures in a gas flow [PDF]

open access: yesE3S Web of Conferences, 2019
Results of numerical investigation of dynamic behavior of deformed wing aircraft in a gas flow are presented in the paper. Vibrations with respect to deflections are described by a system of integro-differential equations in partial derivatives.
Khudayarov Bakhtiyar   +2 more
doaj   +1 more source

A Procedure for Constructing the Solution of a Nonlinear Fredholm Integro-Differential Equation of Second Order

open access: yesAxioms, 2022
In this work, a large class of integro-differential equations, arising from the description of heat transfer problems, is considered, particularly the nonlinear equations.
Rogério Martins Saldanha da Gama   +1 more
doaj   +1 more source

One-step block method for solving Volterra integro-differential equations [PDF]

open access: yes, 2014
One-step block method for solving linear Volterra integro-differential equations (VIDEs) is presented in this paper. In VIDEs, the unknown function appears in the form of derivative and under the integral sign.
Abdul Majid, Zanariah   +1 more
core   +1 more source

The periodic solution of a particular system of integrative-differential and nonlinear equations with independent variable delay [PDF]

open access: yesمجلة التربية والعلم, 2005
In this paper we investigate the existence and approximation of the periodic solution for a system of nonlinear integro -differential equations with retarded argument. The numerical -analytic method has been adapted to study the periodic solutions of the
Raad Petrus, Ayad Ceto
doaj   +1 more source

Stability and asymptotic properties of dissipative evolution equations coupled with ordinary differential equations

open access: yesMathematical Control and Related Fields, 2021
In this paper, we obtain some stability results of systems corresponding to the coupling between a dissipative evolution equation (set in an infinite dimensional space) and an ordinary differential equation.
S. Nicaise
semanticscholar   +1 more source

Lower bounds and positivity conditions for Green's functions to second order differential-delay equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
We consider the Cauchy problem on the positive half-line for the differential-delay equation $$ \ddot u(t)+2c_0(t)\dot u(t)+c_1(t)\dot u(t-h)+d_0(t)u(t)+d_1(t)u(t-h)+d_2(t)u(t-2h)=0 $$ where $c_k(t), d_j(t) (t\geq 0; k=0,1; j=0,1,2)$ are continuous ...
Michael Gil'
doaj   +1 more source

The amazing fractional Maclaurin series for solving different types of fractional mathematical problems that arise in physics and engineering

open access: yesPartial Differential Equations in Applied Mathematics, 2023
Many applications and natural phenomena in the fields of physics and engineering are described by ordinary and partial differential equations. Therefore, obtaining solutions to these equations helps to analyze and understand the dynamics of these systems,
Marwan Alquran
doaj   +1 more source

Integro‐Differential Equations in Angular Stabilization of Drone's Motion by Distributed Feedback Control

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this paper, we propose angular stabilization of drone's motion using distributed feedback control in the form of an integral operator. It should be stressed that the memory of this integral operator could be unbounded. It is intuitively clear that large length of the observation time opens new possibilities to construct better control based
Alexander Domoshnitsky   +2 more
wiley   +1 more source

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