doi: 10.1685/journal.caim.532

Analysis and numerics of traveling waves for asymmetric fractional reaction-diffusion equations

Franz Achleitner, Cristian Kuhen

Abstract


We consider a scalar reaction-diffusion equation in one spatial dimension with bistable nonlinearity and a nonlocal space-fractional diffusion operator of Riesz-Feller type. We present our analytical results on the existence, uniqueness (up to translations) and stability of a traveling wave solution connecting two stable homogeneous steady states. Moreover, we review numerical methods for the case of reaction-diffusion equations with fractional Laplacian and discuss possible extensions to our reaction-diffusion equations with Riesz-Feller operators. In particular, we present a direct method using integral operator discretization in combination with projection boundary conditions to visualize our analytical results about traveling waves.

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Communications in Applied and Industrial Mathematics
ISSN: 2038-0909