Abstract
We propose an approximate method to obtain the speed of wavefronts. It is built up from a known variational principle. For a range of systems of biological and physical interest, comparison to previously-known solutions and to numerical simulations shows the powerfulness of our approximate technique. For time-delayed equations, we also propose an alternative approximate solution, based on the renormalization group approach, and we compare both approximations.
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See Eq. (11) and Sections 4.1 and 4.2 in ref. 15. See also ref. 3.
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Fort, J., Méndez, V. On Approximate Solutions to the Wavefront Speed Problem. Journal of Statistical Physics 107, 805–820 (2002). https://doi.org/10.1023/A:1014590230955
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DOI: https://doi.org/10.1023/A:1014590230955