Existence and uniqueness of a sharp travelling wave in degenerate non-linear diffusion Fisher-KPP equations
In this paper we use a dynamical systems approach to prove the existence of a unique critical value c * of the speed c for which the degenerate density-dependent diffusion equation $u_t = [D(u)u_x]_x + g(u)$ has: 1. no travelling wave solutions for 0 < c < c *, 2. a travelling wave sol...
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| 格式: | Journal article |
| 出版: |
1994
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