Layers and spikes in non-homogeneous bistable reaction-diffusion equations

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چکیده

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Layers and Spikes in Non-homogeneous Bistable Reaction-diffusion Equations

We study ε2ü = f(u, x) = Au (1−u) (φ−u), where A = A(u, x) > 0, φ = φ(x) ∈ (0, 1), and ε > 0 is sufficiently small, on an interval [0, L] with boundary conditions u̇ = 0 at x = 0, L. All solutions with an ε independent number of oscillations are analyzed. Existence of complicated patterns of layers and spikes is proved, and their Morse index is determined. It is observed that the results extend ...

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ژورنال

عنوان ژورنال: Transactions of the American Mathematical Society

سال: 2006

ISSN: 0002-9947,1088-6850

DOI: 10.1090/s0002-9947-06-03834-7