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Asymptotic results for nonlinear outdiffusion
Published online by Cambridge University Press: 26 September 2008
Abstract
Asymptotic methods are applied to the outdiffusion of a diffusant whose behaviour is governed by a power-law diffusivity. Both semi-infinite and finite domain problems are considered. The ‘fast’ diffusion (negative power-law) case is of particular interest, and the results are significantly different from those for the corresponding indiffusion problem.
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