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In this paper we investigate some dichotomy concepts for linear difference equations in Banach spaces. We motivate our approach by illustrative examples.

动力系统 · 数学 2011-08-26 Ioan-Lucian Popa , Mihail Megan , Traian Ceausu

In this paper, we investigate the continuity of the attractors in time-dependent phase spaces. (i) We establish two abstract criteria on the upper semicontinuity and the residual continuity of the pullback $\mathscr D$-attractor with…

偏微分方程分析 · 数学 2022-01-11 Yanan Li , Zhijian Yang

This paper considers three dichotomy concepts (exponential dichotomy, uniform exponential dichotomy and strong exponential dichotomy) in the general context of non-invertible evolution operators in Banach spaces. Connections between these…

经典分析与常微分方程 · 数学 2014-12-02 Nicolae Lupa , Mihail Megan

The aim of this paper is to prove the existence and qualitative property of random attractors for a stochastic nonlocal delayed reaction-diffusion equation (SNDRDE) on a semi-infinite interval with a Dirichlet boundary condition on the…

动力系统 · 数学 2023-02-14 Wenjie Hu , Quanxin Zhu , Tomás Caraballo

The attractors of iterated function systems are usually obtained as the Hausdorff limit of any non-empty compact subset under iteration. In this note we show that an iterated function system on a boundedly compact metric space has compact,…

动力系统 · 数学 2025-10-31 Şahin Koçak

In this paper dynamic von Karman equations with localized interior damping supported in a boundary collar are considered. Hadamard well-posedness for von Karman plates with various types of nonlinear damping are well-known, and the…

偏微分方程分析 · 数学 2012-01-31 Pelin G. Geredeli , Irena Lasiecka , Justin T. Webster

The main objective of this paper is to study the existence of a finite dimension global attractor for the three dimensional viscous primitive equations of large-scale atmosphere. Thanks to the shortage of the uniqueness of weak solutions,…

数学物理 · 物理学 2017-03-17 Bo You

In this paper we completely characterize the norm attainment set of a bounded linear operator on a Hilbert space. This partially answers a question raised recently in [\textit{D. Sain, On the norm attainment set of a bounded linear…

泛函分析 · 数学 2019-03-20 Debmalya Sain

We present an elementary Functional Analytic proof of the roughness of Exponential Dichotomy of Ordinary Differential Equations (with exponential growth) on an arbitrary Banach Space.

泛函分析 · 数学 2009-06-05 Osvaldo Mendez , Nada al Hanna

We investigate fractional Cauchy type problem. By using Schauder fixed point theorem we obtain sufficient conditions for the global attractivity of solutions for nonlinear fractional differential equations in weighted spaces.

经典分析与常微分方程 · 数学 2016-08-23 Fatma Karakoc

We discuss various issues related to the finite-dimensionality of the asymptotic dynamics of solutions of parabolic equations. In particular, we study the regularity of the vector field on the global attractor associated with these…

偏微分方程分析 · 数学 2010-08-31 Eleonora Pinto de Moura , James C. Robinson

This paper introduces a notion of differential forms on closed, potentially fractal, subsets of Euclidean space by defining pointwise cotangent spaces using the restriction of $C^1$ functions to this set. Aspects of cohomology are…

度量几何 · 数学 2017-01-11 Daniel J. Kelleher

We study extension theorems for Lipschitz-type operators acting on metric spaces and with values on spaces of integrable functions. Pointwise domination is not a natural feature of such spaces, and so almost everywhere inequalities and…

泛函分析 · 数学 2019-10-02 W. V. Cavalcante , P. Rueda , E. A. Sánchez-Pérez

For nonlinear time-delay systems, domains of attraction are rarely studied despite their importance for technological applications. The present paper provides methodological hints for the determination of an upper bound on the radius of…

系统与控制 · 电气工程与系统科学 2020-05-21 Tessina H. Scholl , Veit Hagenmeyer , Lutz Gröll

The existence of a global attractor for the solution semiflow of the extended Brusselator system in the $L^2$ phase space is proved, which is a cubic-autocatalytic and partially reversible reaction-diffusion system with linear coupling…

偏微分方程分析 · 数学 2011-02-22 Yuncheng You , Shengfan Zhou

For a discrete dynamics defined by a sequence of bounded and not necessarily invertible linear operators, we give a complete characterization of exponential stability in terms of invertibility of a certain operator acting on suitable Banach…

动力系统 · 数学 2020-02-11 Nicolae Lupa , Liviu Horia Popescu

Global dynamics of nonautonomous diffusive Hindmarsh-Rose equations on a three-dimensional bounded domain in neurodynamics is investigated. The existence of a pullback attractor is proved through uniform estimates showing the pullback…

偏微分方程分析 · 数学 2019-09-10 Chi Phan , Yuncheng You

The initial boundary value problem for a nonlinear system of equations modeling the chevron patterns is studied in one and two spatial dimensions. The existence of an exponential attractor and the stabilization of the zero steady state…

偏微分方程分析 · 数学 2021-02-10 H. Kalantarova , V. Kalantarov , O. Vantzos

In this paper we derive and analyse new exponential collocation methods to efficiently solve the cubic Schr\"{o}dinger Cauchy problem on a $d$-dimensional torus. Energy preservation is a key feature of the cubic Schr\"{o}dinger equation. It…

数值分析 · 数学 2018-08-02 Bin Wang , Xinyuan Wu

The differential-geometric structure of the set of positive densities on a given measure space has raised the interest of many mathematicians after the discovery by C.R. Rao of the geometric meaning of the Fisher information. Most of the…

统计理论 · 数学 2013-07-16 Giovanni Pistone