Results 21 to 30 of about 42,874 (261)

On a method for investigation of random oscillations of the linear visco-elastic system

open access: yesVietnam Journal of Mechanics, 1979
The paper deals with the method for investigation of the random excited integro-differential equations, appeared frequently in the theory of the visco-elastic system.
Nguyen Tien Khiem, Nguyen Dong Anh
doaj   +1 more source

Numerical ansatz for solving integro-differential equations with increasingly smooth memory kernels: spin-boson model and beyond [PDF]

open access: yes, 2007
We present an efficient and stable numerical ansatz for solving a class of integro-differential equations. We define the class as integro-differential equations with increasingly smooth memory kernels.
Zwolak, Michael
core   +2 more sources

Oscillations of integro-differential equations

open access: yesDifferential and Integral Equations, 1991
The integro-differential inequality (1) \(\dot y(t)+\int^ t_ 0 K(t- s)y(s)ds\leq 0\), \(t\geq T\) and the corresponding integro-differential equation (2) \(\dot y(t)+\int^ t_ 0 K(t-s)y(s)ds=0\), \(t\geq T\) are considered. Sufficient conditions, under which no positive solution of (1) exists, and necessary and sufficient conditions for existence of a ...
Ladas, G., Philos, Ch. G., Sficas, Y. G.
openaire   +3 more sources

A PROBLEM WITH PARAMETER FOR THE INTEGRO-DIFFERENTIAL EQUATIONS

open access: yesMathematical Modelling and Analysis, 2021
The article proposes a numerically approximate method for solving a boundary value problem for an integro-differential equation with a parameter and considers its convergence, stability, and accuracy. The integro-differential equation with a parameter is approximated by a loaded differential equation with a parameter.
Elmira A. Bakirova   +2 more
openaire   +5 more sources

On Some Operators Involving Hadamard Derivatives [PDF]

open access: yes, 2013
In this paper we introduce a novel Mittag--Leffler-type function and study its properties in relation to some integro-differential operators involving Hadamard fractional derivatives or Hyper-Bessel-type operators.
Garra, Roberto, Polito, Federico
core   +1 more source

Convolution-type derivatives, hitting-times of subordinators and time-changed $C_0$-semigroups [PDF]

open access: yes, 2014
In this paper we will take under consideration subordinators and their inverse processes (hitting-times). We will present in general the governing equations of such processes by means of convolution-type integro-differential operators similar to the ...
AI Saichev   +29 more
core   +1 more source

Approximate solution for a system of fractional integro-differential equations by Müntz Legendre wavelets [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2021
We use the Müntz Legendre wavelets and operational matrix to solve a system of fractional integro-differential equations. In this method, the system of integro-differential equations shifts into the systems of the algebraic equation, which can be solved ...
Y. Barazandeh
doaj   +1 more source

An inverse problem for a nonlinear Fredholm integro-differential equation of fourth order with degenerate kernel

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2015
We consider the questions of one value solvability of the inverse problem for a nonlinear partial Fredholm type integro-differential equation of the fourth order with degenerate kernel. The method of degenerate kernel is developed for the case of inverse
Tursun K Yuldashev
doaj   +1 more source

Second-Order Elliptic Integro-Differential Equations: Viscosity Solutions' Theory Revisited [PDF]

open access: yes, 2008
The aim of this work is to revisit viscosity solutions' theory for second-order elliptic integro-differential equations and to provide a general framework which takes into account solutions with arbitrary growth at infinity.
Alvarez   +19 more
core   +4 more sources

Stability of an integro-differential equation

open access: yesComputers & Mathematics with Applications, 2009
AbstractIn this work we study a scalar integro-differential equation and give some new conditions ensuring that the zero solution is asymptotically stable by means of the fixed-point theory. Our work extends and improves the results in the literature.
Chuhua Jin, Jiaowan Luo
openaire   +1 more source

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