This article concerns the long time behavior of the delayed Fisher equation without quasimonotonicity. When the time delay is small and the instantaneous self-limitation effect exists, it is proved that the spreading speed is the same as that of the classical Fisher equation.
Submitted April 18, 2012. Published July 5, 2012.
Math Subject Classifications: 35C07, 35K57, 37C65.
Key Words: Nonmonotone equation; spreading speed; delayed equation.
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| Shuxia Pan |
Department of Applied Mathematics
Lanzhou University of Technology
Lanzhou, Gansu 730050, China
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