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In this paper, we investigate a class of non-monotone reaction-diffusion equations with distributed delay and a homogenous boundary Neumann condition, which have a positive steady state. The main concern is the global attractivity of the…

动力系统 · 数学 2018-10-03 Tarik Mohammed Touaoula

The long-time behavior of stochastic Hamilton-Jacobi equations is analyzed, including the stochastic mean curvature flow as a special case. In a variety of settings, new and sharpened results are obtained. Among them are (i) a…

Using anisotropic hydrodynamics, we examine the existence of early-time attractors of non-conformal systems undergoing Bjorken expansion. In the case of a constant mass, we find that the evolution of the scaled longitudinal pressure is…

核理论 · 物理学 2023-05-01 Mubarak Alqahtani

We present a general method of analyzing the influence of finite size and boundary effects on the dynamics of localized solutions of non-linear spatially extended systems. The dynamics of localized structures in infinite systems involve…

斑图形成与孤子 · 物理学 2009-11-11 A. Yadav , D. A. Browne

In this paper we study the long-time behavior of a nonlocal Cahn-Hilliard system with singular potential, degenerate mobility, and a reaction term. In particular, we prove the existence of a global attractor with finite fractal dimension,…

偏微分方程分析 · 数学 2026-04-10 Annalisa Iuorio , Stefano Melchionna

We explore the phenomenon of spiral defect chaos in two types of generalized Swift-Hohenberg model equations that include the effects of long-range drift velocity or mean flow. We use spatially-extended domains and integrate the equations…

混沌动力学 · 物理学 2015-05-28 Alireza Karimi , Zhi-Feng Huang , Mark Paul

Discrete Ginzburg-Landau (DGL) equations with non-local nonlinearities have been established as significant inherently discrete models in numerous physical contexts, similar to their counterparts with local nonlinear terms. We study two…

偏微分方程分析 · 数学 2021-10-25 Dirk Hennig , Nikos I. Karachalios

We consider a linear size-structured population model with diffusion in the size-space. Individuals are recruited into the population at arbitrary sizes. The model is equipped with generalized Wentzell-Robin (or dynamic) boundary…

偏微分方程分析 · 数学 2019-03-25 J. Z. Farkas , P. Hinow

The Cahn-Hilliard equation has a wide range of applications in many areas of physics and chemistry. To describe the short-range interaction between the solution and the boundary, scientists have constructed dynamical boundary conditions by…

数值分析 · 数学 2025-11-05 Yunzhuo Guo , Cheng Wang , Zhengru Zhang

We analyze a phase-field system where the energy balance equation is linearly coupled with a nonlinear and nonlocal ODE for the order parameter $\chi$. The latter equation is characterized by a space convolution term which models particle…

动力系统 · 数学 2011-08-02 Maurizio Grasselli

We present a singular perturbation theory applicable to systems with hybrid boundary layer systems and hybrid reduced systems {with} jumps from the boundary layer manifold. First, we prove practical attractivity of an adequate attractor set…

最优化与控制 · 数学 2023-04-03 Suad Krilašević , Sergio Grammatico

I introduce an innovative methodology for deriving numerical models of systems of partial differential equations which exhibit the evolution of spatial patterns. The new approach directly produces a discretisation for the evolution of the…

数值分析 · 数学 2025-10-20 A. J. Roberts

An N-dimensional generalization of Nicholson's equation is analyzed. We consider a model including multiple delays, nonlinear coefficients and a nonlinear harvesting term. Inspired by previous results in this subject, we obtain sufficient…

经典分析与常微分方程 · 数学 2021-12-13 Pablo Amster , Melanie Bondorevsky

We consider various versions of the obstacle and thin-obstacle problems, we interpret them as variational inequalities, with non-smooth constraint, and prove that they satisfy a new constrained Lojasiewicz inequality. The difficulty lies in…

偏微分方程分析 · 数学 2018-09-18 Maria Colombo , Luca Spolaor , Bozhidar Velichkov

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

We consider a reaction-diffusion-advection equation arising from a biological model of migrating species. The qualitative properties of the globally attracting solution are studied and in some cases the limiting profile is determined. In…

偏微分方程分析 · 数学 2020-04-20 King-Yeung Lam

When dilute charged particles are confined in a bounded domain, boundary effects are crucial in the global dynamics. We construct a unique global-in-time solution to the Vlasov-Poisson-Boltzmann system in convex domains with the diffuse…

偏微分方程分析 · 数学 2019-04-08 Yunbai Cao , Chanwoo Kim , Donghyun Lee

We study the controllability of the multidimensional wave equation in a bounded domain with Dirichlet boundary condition, in which the support of the control is allowed to change over time. The exact controllability is reduced to the proof…

最优化与控制 · 数学 2018-05-09 Antonio Agresti , Daniele Andreucci , Paola Loreti

In recent years it has been shown for hard sphere gas that, by retaining the correlation information, dynamical fluctuation and large deviation of empirical measure around Boltzmann equation could be proved, in addition to the classical…

偏微分方程分析 · 数学 2024-09-05 Chenjiayue Qi

This paper concerns the asymptotics of certain parabolic-elliptic chemotaxis-consumption systems with logistic growth and constant concentration of chemoattractant on the boundary. First we prove that in two dimensional bounded domains…

偏微分方程分析 · 数学 2024-08-20 Piotr Knosalla , Johannes Lankeit
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