Results 1 to 10 of about 354,562 (267)

Uniform Stability of Nonlinear Difference Systems

open access: yesJournal of Mathematical Analysis and Applications, 1998
The authors present sufficient conditions for the uniform stability and uniformly asymptotic stability of the zero solution of the difference equation \[ x(n+ 1)- \lambda x(n)+ f(n,x_n)= 0,\quad n\in\mathbb{N},\tag{1} \] where \(\lambda\in[0,1]\) and \(f\) is a functional depending on \(x_n\) defined by \(x_n(m):= x(n+ m)\) for \(-k\leq m\leq 0\), \(k ...
Zhou, Zhan, Zhang, Qinqin
exaly   +2 more sources

Qualitative analysis of a mechanical system of coupled nonlinear oscillators

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
In this paper we investigate nonlinear systems of second order ODEs describing the dynamics of two coupled nonlinear oscillators of a mechanical system. We obtain, under certain assumptions, some stability results for the null solution.
Gheorghe Moroșanu   +1 more
doaj   +1 more source

Generalized Multiscale Finite Element Method and Balanced Truncation for Parameter-Dependent Parabolic Problems

open access: yesMathematics, 2023
We propose a generalized multiscale finite element method combined with a balanced truncation to solve a parameter-dependent parabolic problem. As an updated version of the standard multiscale method, the generalized multiscale method contains the ...
Shan Jiang   +3 more
doaj   +1 more source

New Results Achieved for Fractional Differential Equations with Riemann–Liouville Derivatives of Nonlinear Variable Order

open access: yesAxioms, 2023
This paper proposes new existence and uniqueness results for an initial value problem (IVP) of fractional differential equations of nonlinear variable order. Riemann–Liouville-type fractional derivatives are considered in the problem. The new fundamental
Hallouz Abdelhamid   +3 more
doaj   +1 more source

On Variable-Order Fractional Discrete Neural Networks: Existence, Uniqueness and Stability

open access: yesFractal and Fractional, 2023
Given the recent advances regarding the studies of discrete fractional calculus, and the fact that the dynamics of discrete-time neural networks in fractional variable-order cases have not been sufficiently documented, herein, we consider a novel class ...
Othman Abdullah Almatroud   +5 more
doaj   +1 more source

Uniform K-stability of polarized spherical varieties [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2023
We express notions of K-stability of polarized spherical varieties in terms of combinatorial data, vastly generalizing the case of toric varieties.
Thibaut Delcroix
doaj   +1 more source

Stability of uniform shear flow [PDF]

open access: yesPhysical Review E, 1998
25 pages, 9 figures (Fig.8 is available on request) RevTeX, submitted to Phys.
Montanero, José María   +4 more
openaire   +4 more sources

Qualitative Analyses of Integro-Fractional Differential Equations with Caputo Derivatives and Retardations via the Lyapunov–Razumikhin Method

open access: yesAxioms, 2021
The purpose of this paper is to investigate some qualitative properties of solutions of nonlinear fractional retarded Volterra integro-differential equations (FrRIDEs) with Caputo fractional derivatives.
Osman Tunç   +3 more
doaj   +1 more source

Uniform Stability of a Class of Fractional-Order Fuzzy Complex-Valued Neural Networks in Infinite Dimensions

open access: yesFractal and Fractional, 2022
In this paper, the problem of the uniform stability for a class of fractional-order fuzzy impulsive complex-valued neural networks with mixed delays in infinite dimensions is discussed for the first time.
Xin Liu, Lili Chen, Yanfeng Zhao
doaj   +1 more source

Finite and Uniform Stability of Sphere Packings [PDF]

open access: yesDiscrete & Computational Geometry, 1998
The authors investigate how stable (in very natural settings) a sphere packing can be. A sphere packing is called finitely stable if for every integer \(n \geq 1\) each set of \(n\) balls is fixed by its neighbors, and uniformly stable if for a sufficiently small \(\varepsilon>0\) every finite rearrangement of the balls where no ball is moved more than
András Bezdek   +2 more
openaire   +1 more source

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