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

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Generalized diffusion type equations are considered and point symmetry analysis is applied to them. The equations with extremal order point symmetry algebras are described. Some old geometrical results are rederived in connection with…

偏微分方程分析 · 数学 2007-05-23 V. V. Dmitrieva , E. G. Neufeld , R. A. Sharipov , A. A. Tsaregorodtsev

We consider absorbing chemical reactions in a fluid flow modeled by the coupled advection-reaction-diffusion equations. In these systems, the interplay between chemical diffusion and fluid transportation causes the enhanced dissipation…

偏微分方程分析 · 数学 2022-07-27 Siming He , Alexander Kiselev

We have studied the front propagation in a one dimensional case of combustion by solving numerically an advection-reaction-diffusion equation. The physical model is simplified so that no coupling phenomena are considered and the reacting…

流体动力学 · 物理学 2011-04-07 Federico Bianco , Sergio Chibbaro , Roger Prud'homme

The reversible reactions like A+B <-> C in the many-component diffusive system affect the diffusive properties of the constituents. The effective conjugation of irreversible processes of different dimensionality takes place due to the…

其他凝聚态物理 · 物理学 2007-05-23 Serge Shpyrko , Vladimir M. Sysoev

Chemical and biochemical reactions can exhibit surprisingly different behaviours, ranging from multiple steady-state solutions to oscillatory solutions and chaotic behaviours. These types of systems are often modelled by a system of…

偏微分方程分析 · 数学 2025-07-03 Erika Hausenblas , Michael A. Högele , Tesfalem A. Tegegn

We establish the existence of solutions to a class of non-linear stochastic differential equation of reaction-diffusion type in an infinite-dimensional space, with diffusion corresponding to a given transition kernel. The solution obtained…

A new upscaling procedure that provides 1D representations of 2D mixing-limited reactive transport systems is developed and applied. A key complication with upscaled models in this setting is that the procedure must differentiate between…

流体动力学 · 物理学 2022-10-05 Ricardo H. Deucher , Louis J. Durlofsky

A coupled system of nonlinear mixed-type equations modeling early stages of angiogenesis is analyzed in a bounded domain. The system consists of stochastic differential equations describing the movement of the positions of the tip and stalk…

偏微分方程分析 · 数学 2022-06-24 Markus Fellner , Ansgar Jüngel

In this paper, we define the general framework to describe the diffusion operators associated to a positive matrix. We define the equations associated to diffusion operators and present some general properties of their state vectors. We…

数值分析 · 计算机科学 2013-01-15 Dohy Hong , Fabien Mathieu , Gérard Burnside

We introduce a generalized concept of solutions for reaction-diffusion systems and prove their global existence. The only restriction on the reaction function beyond regularity, quasipositivity and mass control is special in that it merely…

偏微分方程分析 · 数学 2021-08-03 Johannes Lankeit , Michael Winkler

Reaction-diffusion equations deliver a versatile tool for the description of reactions in inhomogeneous systems under the assumption that the characteristic reaction scales and the scales of the inhomogeneities in the reactant…

统计力学 · 物理学 2009-11-11 M. G. W. Schmidt , F. Sagues , I. M. Sokolov

In this paper, we propose some algorithms for the simulation of the distribution of certain diffusions conditioned on terminal point. We prove that the conditional distribution is absolutely continuous with respect to the distribution of…

统计理论 · 数学 2007-06-13 Bernard Delyon , Ying Hu

We study a reaction-diffusion system on the real line, where the reactions of the species are given by one reversible reaction according to the mass-action law. We describe different positive limits at both sides of infinity and investigate…

偏微分方程分析 · 数学 2023-04-07 Alexander Mielke , Stefanie Schindler

We give a comprehensive study of the analytic properties and long-time behavior of solutions of a reaction-diffusion system in a bounded domain in the case where the nonlinearity satisfies the standard monotonicity assumption. We pay the…

偏微分方程分析 · 数学 2020-06-11 Anna Kostianko , Chunyou Sun , Sergey Zelik

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

Reaction-diffusion systems are ubiquitous in nature and in engineering applications, and are often modeled using a non-linear system of governing equations. While robust numerical methods exist to solve them, deep learning-based reduced…

计算工程、金融与科学 · 计算机科学 2020-06-11 Kaushik Balakrishnan , Devesh Upadhyay

This paper is concerned with the optimal control of hysteresis-reaction-diffusion systems. We study a control problem with two sorts of controls, namely distributed control functions, or controls which act on a part of the boundary of the…

最优化与控制 · 数学 2017-06-01 Christian Münch

In the past the study of reaction-diffusion systems has greatly contributed to our understanding of the behavior of many-body systems far from equilibrium. In this paper we aim at characterizing the properties of diffusion limited reactions…

统计力学 · 物理学 2015-05-14 Sven Dorosz , Michel Pleimling

We extend the energetic variational approach so it can be applied to a chemical reaction system with general mass action kinetics. Our approach starts with an energy-dissipation law. We show that the chemical equilibrium is determined by…

化学物理 · 物理学 2021-01-04 Yiwei Wang , Chun Liu , Pei Liu , Bob Eisenberg

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