ISSN:
1572-9613
Keywords:
Multivariate master equation
;
reaction-diffusion system
;
codimension-two bifurcation
;
nonanalytic potential
;
spatiotemporal structure
;
fluctuations
;
spatial correlations
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The multivariate master equation for a general reaction-diffusion system is solved perturbatively in the stationary state, in a range of parameters in which a symmetry-breaking bifurcation and a Hopf bifurcation occur simultaneously. Thestochastic potential U is, in general, not analytic. However, in the vicinity of the bifurcation point and under precise conditions on the kinetic constants, it is possible to define a fourth-order expansion ofU around the bifurcating fixed point. Under these conditions, the domains of existence of different attractors, including spatiotemporal structures as well as the spatial correlations of the fluctuations around these attractors, are determined analytically. The role of fluctuations in the existence and stability of the various patterns is pointed out.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01014217
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