A turing model with correlated random walk

被引:44
作者
Hillen, T
机构
[1] University of Tübingen, Biomathematik, D-72076 Tübingen
关键词
random walk; pattern formation; hyperbolic system;
D O I
10.1007/s002850050042
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
If in the classical Turing model the diffusion process (Brownian motion) is replaced by a more general correlated random walk, then the parameters describing spatial spread are the particle speeds and the rates of change in direction. As in the Turing model, a spatially constant equilibrium can become unstable if the different species have different turning rates and different speeds. Furthermore, a Hopf bifurcation can be found if the reproduction rate of the activator is greater than its rate of change of direction, and oscillating patterns are possible.
引用
收藏
页码:49 / 72
页数:24
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