Spirals and targets in reaction-diffusion systems.
The existence of spirals and targets is common in reaction diffusion systems of excitable dynamics. I present a multiple scale perturbation analysis to show the existence of all these patterns near a Hopf bifurcation boundary in a Turing type reaction-diffusion system.
Bhattacharyay
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Department of Theoretical Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700 032, India.