Results 121 to 130 of about 42,874 (261)

On a Simple Type of Integro-differential Equation [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1935
In a previous paper in these Proceedings the author discussed conditions for a maximum or minimum of functions of integrals of the typeusing the methods of the Calculus of Variations. In the effort to establish a third necessary condition for a minimum—the analogue of Jacobi's condition in the ordinary variational problem—it was found that the analogue
openaire   +2 more sources

Convergence analysis of the sinc collocation method for integro-differential equations system [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2016
In this paper, a numerical solution for a system of linear Fredholm integro-differential equations by means of the sinc method is considered. This approximation reduces the system of integro-differential equations to an explicit system of algebraic ...
Mohammad Zarebnia
doaj  

Diffraction problem of electromagnetic wave propagation on system of arbitrary located screens and bodies

open access: yesФизика волновых процессов и радиотехнические системы, 2017
Diffraction problem of electromagnetic wave propagation on system of arbitrary located screens and bodies is considered. Uniqueness and solvability theorems are proved.
Yu.G. Smirnov
doaj  

Numerical Solution using Chebyshev Expansion of the Higher-Orders Linear Fredholm Integro-Differential-Difference Equations with Variable Coefficients

open access: yesپژوهش‌های ریاضی, 2020
The main aim of this paper is to apply the Chebyshev polynomials for the solution of the linear Fredholm integro-differential-difference equation of high orders. It is usually difficult to analytically solve this equation.
Babolian, Fatemeh Chitsaz, Ali Davari
doaj  

Bernstein Operational Matrix Approach for Integro-Differential Equation Arising in Control theory

open access: yesNonlinear Engineering, 2014
The aim of this paper is to propose an efficient numerical method for solving the integro-differential equations arising in many braches of sciences using Bernstein polynomials.
Irfan Nagma, Kumar Sunil, Kapoor Saurabh
doaj   +1 more source

Solutions to systems of partial differential equations with weighted self-reference and heredity

open access: yesElectronic Journal of Differential Equations, 2012
This article studies the existence of solutions to systems of nonlinear integro-differential self-referred and heredity equations. We show the existence of a global solution and the uniqueness of a local solution to a system of integro-differential ...
Pham Ky Anh   +2 more
doaj  

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