| Abstract: |
| In this talk we consider a time periodic non-monotone and nonlocal delayed reaction-diffusion population model with stage structure. We first prove the existence of the asymptotic speed $c^*$ of spread by virtue of two auxiliary equations and comparison arguments. We then establish the existence of time periodic traveling wave solutions with speed $c\geq c^*$. Finally, we obtain the nonexistence of traveling wave solutions for speed $c |
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