Order and localization in reaction-diffusion pattern

David M. Holloway and Lionel G. Harrison

Physica A: Statistical Mechanics and its Applications, 1995, vol. 222, issue 1, 210-233

Abstract: The present work is concerned with two aspects of pattern formation: pattern localization and degree of pattern order. In reaction-diffusion models, there are three major effects. These stem from the reaction terms, the diffusion terms and the presence or absence of precursor gradients. Global analysis of reaction terms at late stages of pattern formation is at present unavailable. Therefore, we study the effect of the diffusion terms and of precursor gradients with numerical solution in two models: the Brusselator and the Gierer-Meinhardt. Differences in response to changes in the diffusion terms and the precursor gradients are related to contrasts between the nonlinear kinetics of the two models. These models both have Hill coefficient 2; effects of higher cooperativities have recently been discussed by Hunding and Engelhardt [1].

Date: 1995
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:222:y:1995:i:1:p:210-233

DOI: 10.1016/0378-4371(95)00202-2

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