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相关论文: Some Remarks on Some Strongly Coupled Reaction-Dif…

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Many important applications are available for nonlinear reaction-diffusion equation especially in the area of biology and engineering. Therefore a mathematical model for Lie symmetry reduction of system of nonlinear reaction-diffusion…

数学物理 · 物理学 2007-05-23 Sanjeev Kumar , Ravendra Singh

Reaction-diffusion models have been used over decades to study biological systems. In this context, evolution equations for probability distribution functions and the associated stochastic differential equations have nowadays become…

统计力学 · 物理学 2018-10-09 C. Escudero , S. B. Yuste , E. Abad , F. Le Vot

The chemical diffusion master equation (CDME) describes the probabilistic dynamics of reaction--diffusion systems at the molecular level [del Razo et al., Lett. Math. Phys. 112:49, 2022]; it can be considered the master equation for…

统计力学 · 物理学 2023-01-23 Mauricio J. del Razo , Stefanie Winkelmann , Rupert Klein , Felix Höfling

Approximate solutions of the Fisher equation obtained by different splitting methods are investigated. The error of this nonlinear problem is analyzed. The order of different splitting methods coupled with numerical methods of different…

数值分析 · 数学 2011-03-23 Tamás Ladics

A class of coupled time-space fractional reaction-diffusion systems derived from reversible chemical reactions over a bounded domain is investigated. Employing mainly an appropriate Lyapunov functional and an improved maximum principle, we…

偏微分方程分析 · 数学 2026-03-04 Redouane Douaifia , Salem Abdelmalek , Mokhtar Kirane

A practical introduction to stochastic modelling of reaction-diffusion processes is presented. No prior knowledge of stochastic simulations is assumed. The methods are explained using illustrative examples. The article starts with the…

亚细胞过程 · 定量生物学 2007-11-19 Radek Erban , Jonathan Chapman , Philip Maini

The replicator equation is ubiquitous for many areas of mathematical biology. One of major shortcomings of this equation is that it does not allow for an explicit spatial structure. Here we review analytical approaches to include spatial…

种群与进化 · 定量生物学 2011-05-06 Artem S. Novozhilov , Vladimir P. Posvyanskii , Alexander S. Bratus

We concider, the blow-up solutions for a coupled reaction diffusion system with gradient terms. The main purpose is to understand whether the gradient terms effect the blow-up properties. We derive the upper and lower blow-up rate estimates…

偏微分方程分析 · 数学 2012-11-29 Maan A. Rasheed , Miroslav Chlebik

In view of the role of reaction equations in physical problems, the authors derive the explicit solution of a fractional reaction equation of general character, that unifies and extends earlier results. Further, an alternative shorter…

数学物理 · 物理学 2015-05-18 R. K. Saxena , A. M. Mathai , H. J. Haubold

Reaction diffusion systems describe the behaviour of dynamic, interacting, particulate systems. Quantum stochastic processes generalise Brownian motion and Poisson processes, having operator valued It\^{o} calculus machinery. Here it is…

数学物理 · 物理学 2023-05-31 Chris D Greenman

We consider similarity solutions of the generalized convection-diffusion-reaction equation with both space- and time-dependent convection, diffusion and reaction terms. By introducing the similarity variable, the reaction-diffusion equation…

数学物理 · 物理学 2019-05-01 C. -L. Ho , C. -M. Yang

Q-conditional symmetries (nonclassical symmetries) for the general class of two-component reaction-diffusion systems with non-constant diffusivities are studied. Using the recently introduced notion of Q-conditional symmetries of the first…

数学物理 · 物理学 2019-09-17 Roman Cherniha , Vasyl' Davydovych

Q-conditional symmetries (nonclassical symmetries) for a general class of two-component reaction-diffusion systems with constant diffusivities are studied. Using the recently introduced notion of Q-conditional symmetries of the first type…

数学物理 · 物理学 2019-09-17 Roman Cherniha , Vasyl' Davydovych

This paper proposes a novel reaction-diffusion system approximation tailored for singular diffusion problems, typified by the fast diffusion equation. While such approximation methods have been successfully applied to degenerate parabolic…

偏微分方程分析 · 数学 2026-04-01 Hideki Murakawa , Florian Salin

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

Multispecies reaction-diffusion systems, for which the time evolution equation of correlation functions become a closed set, are considered. A formal solution for the average densities is found. Some special interactions and the exact time…

凝聚态物理 · 物理学 2012-01-27 A. Aghamohammadi , A. H. Fatollahi , M. Khorrami , A. Shariati

We consider a reaction-diffusion system for two densities lying in adjacent domains of $\mathbb{R}^N$. We treat two configurations: either a cylinder and its complement, or two half-spaces. Diffusion and reaction heterogeneities for the two…

偏微分方程分析 · 数学 2025-06-06 Henri Berestycki , Luca Rossi , Andrea Tellini

This paper aims to prove the global existence of solutions for coupled reaction diffusion equations with a balance Law and nonlinearities with a non constant sign. The case when one (or both) of the components of the solution is not a…

偏微分方程分析 · 数学 2023-10-24 Said Kouachi

We study diffusion-controlled processes in nonequilibrium steady states, where standard rate theory assumptions break down. Using transition path theory, we generalize the relations between reactive probability fluxes and measures of the…

化学物理 · 物理学 2025-06-02 Seokjin Moon , David T. Limmer

We present new results of existence of global solutions for a class of reaction cross-diffusion systems of two equations presenting a cross-diffusion term in the first equation, and possibly presenting a self-diffusion term in any (or both)…

偏微分方程分析 · 数学 2015-03-26 Ariane Trescases