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相关论文: Boundedness of a class of discretized reaction-dif…

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We study the uniform boundedness of solutions to reaction-diffusion systems possessing a Lyapunov-like function and satisfying an {\it intermediate sum condition}. This significantly generalizes the mass dissipation condition in the…

偏微分方程分析 · 数学 2020-06-24 Jeff Morgan , Bao Quoc Tang

In this work, we investigate a reaction-diffusion system in which both species are influenced by self-diffusion. Due to Hopf's boundary lemma, we obtain the boundedness of the classical solution of the system. By considering a particular…

偏微分方程分析 · 数学 2024-04-22 Ningning Zhu , Dongpo Hu , Huili Bi

This work studies nonnegative solutions for the Cauchy, Neumann, and Dirichlet problems of a logistic type reaction-diffusion equation. The finite time blowup results for nonnegative solutions under various restrictions on the coefficients…

偏微分方程分析 · 数学 2007-05-23 Chu-Pin Lo

In this paper, we consider the large-time behavior of solutions of a reaction diffusion system arising from a nuclear reactor model with the Robin boundary conditions, which consists of two real-valued unknown functions. In particular, we…

偏微分方程分析 · 数学 2018-11-12 Kosuke Kita , Mitsuharu Ôtani

A space discrete approximation to a highly nonlinear reaction-diffusion system endowed with a stochastic dynamical boundary condition is analyzed and the convergence of the discrete scheme to the solution to the corresponding continuum…

We study the blow up solutions of a semilinear reaction diffusion system coupled in both equations and boundary conditions. The main purpose is to understand how the reaction terms and the absorption terms affect the blow-up properties. We…

偏微分方程分析 · 数学 2016-11-26 Maan A. Rasheed , Miroslav Chlebik

We exhibit a large class of Lyapunov functionals for nonlinear drift-diffusion equations with non-homogeneous Dirichlet boundary conditions. These are generalizations of large deviation functionals for underlying stochastic many-particle…

偏微分方程分析 · 数学 2015-06-16 T. Bodineau , J. L. Lebowitz , C. Mouhot , C. Villani

We consider a class of reaction-diffusion equations with a stochastic perturbation on the boundary. We show that in the limit of fast diffusion, one can rigorously approximate solutions of the system of PDEs with stochastic Neumann boundary…

偏微分方程分析 · 数学 2014-08-13 Wael W. Mohammed , Dirk Blömker

Reaction-diffusion systems with mass dissipation are known to possess blow-up solutions in high dimensions when the nonlinearities have super quadratic growth rates. In dimension one, it has been shown recently that one can have global…

偏微分方程分析 · 数学 2023-09-29 Juan Yang , Anna Kostianko , Chunyou Sun , Bao Quoc Tang , Sergey Zelik

In this paper, Lyapunov-Razumikhin technique, design of state-dependent switching laws, a fixed point theorem and variational methods are employed to derive the existence and the unique existence results of globally exponentially stable…

动力系统 · 数学 2026-01-30 Ruofeng Rao , Jialin Huang , Xiaodi Li

We study the boundedness and convergence to equilibrium of weak solutions to reaction-diffusion systems with nonlinear diffusion. The nonlinear diffusion is of porous medium type and the nonlinear reaction terms are assumed to grow…

偏微分方程分析 · 数学 2017-11-09 Klemens Fellner , Evangelos Latos , Bao Quoc Tang

Large time dynamics of reaction-diffusion systems modeling some irreversible reaction networks are investigated. Depending on initial masses, these networks possibly possess boundary equilibria, where some of the chemical concentrations are…

偏微分方程分析 · 数学 2024-11-04 Thi Lien Nguyen , Bao Quoc Tang

We consider a reaction-diffusion system where some components react and diffuse on the boundary of a region, while other components diffuse in the interior and react with those on the boundary through mass transport. We establish criteria…

偏微分方程分析 · 数学 2015-12-31 Vandana Sharma , Jeff Morgan

In this paper we apply the differential inequality technique of Payne {\it et. al} \cite{Payne&SchaeferRobin08} to show that a reaction-diffusion system admits blow-up solutions, and to determine an upper bound for the blow-up time. For a…

偏微分方程分析 · 数学 2015-09-10 Li-Chang Hung

In this paper we provide an example of a class of two reaction-diffusion-ODE equations with homogeneous Neumann boundary conditions, in which Turing-type instability not only destabilizes constant steady states but also induces blow-up of…

偏微分方程分析 · 数学 2015-11-10 Anna Marciniak-Czochra , Grzegorz Karch , Kanako Suzuki , Jacek Zienkiewicz

Convection-diffusion-reaction equations are a class of second-order partial differential equations widely used to model phenomena involving the change of concentration/population of one or more substances/species distributed in space.…

The global existence of bounded solutions to reaction-diffusion systems with fractional diffusion in the whole space $\mathbb R^N$ is investigated. The systems are assumed to preserve the non-negativity of initial data and to dissipate…

偏微分方程分析 · 数学 2025-02-25 Phuoc-Tai Nguyen , Bao Quoc Tang

A general reaction-diffusion equation with spatiotemporal delay and homogeneous Dirichlet boundary condition is considered. The existence and stability of positive steady state solutions are proved via studying an equivalent…

偏微分方程分析 · 数学 2021-02-24 Wenjie Zuo , Junping Shi

We study the global existence and uniform-in-time bounds of classical solutions in all dimensions to reaction-diffusion systems dissipating mass. By utilizing the duality method and the regularization of the heat operator, we show that if…

偏微分方程分析 · 数学 2019-05-28 Brian P. Cupps , Jeff Morgan , Bao Quoc Tang

A time-space fractional reaction-diffusion equation in a bounded domain is considered. Under some conditions on the initial data, we show that solutions may experience blow-up in a finite time. However, for realistic initial conditions,…

偏微分方程分析 · 数学 2020-04-09 Ahmed Alsaedi , Mokhtar Kirane , Berikbol T. Torebek
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