Lie symmetry classification shows that a coupled nonlinear cross-diffusion system in radial geometry always admits time translation and parabolic scaling as kernel symmetries, with additional symmetries only in degenerate cases.
Basarab-Horwath, V
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Lie symmetry classification of a coupled nonlinear cross-diffusion system in radial geometry
Lie symmetry classification shows that a coupled nonlinear cross-diffusion system in radial geometry always admits time translation and parabolic scaling as kernel symmetries, with additional symmetries only in degenerate cases.