Spatial Patterns Described by the Extended Fisher--Kolmogorov Equation: Periodic Solutions
- 1 November 1997
- journal article
- Published by Society for Industrial & Applied Mathematics (SIAM) in SIAM Journal on Mathematical Analysis
- Vol. 28 (6) , 1317-1353
- https://doi.org/10.1137/s0036141095280955
Abstract
Stationary antisymmetric single-bump periodic solutions of a fourth-order generalization of the Fisher--Kolmogorov (FK) equation are analyzed. The coefficient $\gamma > 0$ of the additional fourth-order spatial derivative is found to be a critical parameter. If $\gamma \leq {1 \over 8}$, the family of periodic solutions is still very similar to that of the FK equation. However, if $\gamma > {1 \over 8}$, it is possible to distinguish different families of periodic solutions and the structure of such solutions is much richer.
Keywords
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