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Stability theory for some scalar finite difference schemes: validity of the modified equations approach* [PDF]

open access: yesESAIM: Proceedings and Surveys, 2021
In this paper, we discuss some limitations of the modified equations approach as a tool for stability analysis for a class of explicit linear schemes to scalar partial differential equations. We show that the infinite series obtained by Fourier transform
Dhaouadi Firas   +3 more
doaj   +3 more sources

Stability and boundedness In nonlinear and neutral difference equations using new variation of parameters formula and fixed point theory [PDF]

open access: yesCubo, 2019
In the case of nonlinear problems, whether in differential or difference equations, it is difficult and in some cases impossible to invert the problem and obtain a suitable mapping that can be effectively used in fixed point theory to qualitatively ...
Youssef N. Raffoul
doaj   +3 more sources

Study of the stability of a 3×3 system of difference equations using Centre Manifold Theory.

open access: yesAppl. Math. Lett., 2017
Nikolaos Psarros   +2 more
exaly   +4 more sources

Stability Analysis for a Class of Stochastic Differential Equations with Impulses

open access: yesMathematics, 2023
This paper is concerned with the problem of asymptotic stability for a class of stochastic differential equations with impulsive effects. A sufficient criterion on asymptotic stability is derived for such impulsive stochastic differential equations via ...
Mingli Xia   +3 more
doaj   +1 more source

Riccati equations in stability theory of difference equations with memory [PDF]

open access: yes1999 European Control Conference (ECC), 1999
This paper defines several Riccati equations that allow checking the stability of difference equations with delay effect as x i+1 = mΣ j=0 A j x i-j (x i ∊ Rn). These various matrix Riccati equations have the same dimension n than the vector x, whatever the order m may be: this represents an advantage for high orders m when compared to classical ...
Vladimir Kolmanovskii   +2 more
openaire   +1 more source

On a functional equation arising in the stability theory of difference-differential equations [PDF]

open access: yesQuarterly of Applied Mathematics, 1977
The functional differential equation \[ Q ′
Castelan, W. B., Infante, E. F.
openaire   +1 more source

Nonlocal Problems for Hilfer Fractional q-Difference Equations

open access: yesFractal and Fractional, 2023
In the paper, we investigate a kind of Hilfer fractional q-difference equations with nonlocal condition. Firstly, the existence and uniqueness results of solutions are obtained by using topological degree theory and Banach fixed point theorem ...
Chunping Tian, Haibo Gu, Zunkai Yang
doaj   +1 more source

Some Unsolved Problems in Stability and Optimal Control Theory of Stochastic Systems

open access: yesMathematics, 2022
In spite of the fact that the theory of stability and optimal control for different types of stochastic systems is well developed and very popular in research, there are some simply and clearly formulated problems, solutions of which have not been found ...
Leonid Shaikhet
doaj   +1 more source

Stability theory and adjoint operators for linear differential-difference equations [PDF]

open access: yesTransactions of the American Mathematical Society, 1959
Abstract : This paper extends to linear differential-difference equations a number of results familiar in the stability theory of ordinary linear differential equations. In this theory, one considers a system of equations of the form (1) dx/dt = A(t)x, x(0) = c, where t is a real variable, x is a column vector with n rows, and A(t) is an n- by -n ...
Bellman, Richard, Cooke, Kenneth L.
openaire   +2 more sources

Stability and motion characteristics in a vibrating system with five rigid frames driven by two counter-rotating exciters

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2021
A new dynamical model with five rigid frames (RFs), driven by two counter-rotating exciters, is proposed to explore the synchronization, stability, and motion characteristics of the system in this paper.
Wenchao Hu   +4 more
doaj   +1 more source

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