A simple approach to the wave uniqueness problem
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Date
2019
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Abstract
We propose a new approach for proving uniqueness of semi-wavefronts in generally non-monotone monostable reaction-diffusion equations with distributed delay. This allows to solve an open problem concerning the uniqueness of non-monotone (hence, slowly oscillating) semi-wavefronts to the KPP-Fisher equation with delay. Similarly, a broad family of the Mackey-Glass type diffusive equations is shown to possess a unique (up to translation) semi-wavefront for each admissible speed. (C) 2018 Elsevier Inc. All rights reserved.
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Keywords
Monostable equation, Non-monotone reaction, Uniqueness, KPP-Fisher delayed equation, Mackey-Glass type diffusive equation