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Spiral waves solutions in reaction-diffusion equations with symmetries. Analysis through specific models

J F R Archilla-+, J L Romero++, F Romero Romero§ and F Palmero-+

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Symmetries of nonlinear reaction-diffusion equations determine the existence of regular rotating spiral waves. They are only a consequence of kinetics processes and molecular diffusion. We prove the existence of these waves as invariant solutions of reaction-diffusion models with appropiate Lie point symmetries.


PACS

05.45.-a Nonlinear dynamics and nonlinear dynamical systems

02.30.Jr Partial differential equations

MSC

35K57 Reaction-diffusion equations

Subjects

Mathematical physics

Statistical physics and nonlinear systems

Dates

Issue 12 (21 June 1997)

Received 1 March 1996, in final form 7 August 1996



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