Special Session 6: Propagation dynamics of PDEs: recent progress and trends

Polyhedral entire solutions in reaction-diffusion equations
Masaharu Taniguchi
Okayama University
Japan
Co-Author(s):    
Abstract:
We study polyhedral entire solutions to a bistable reaction-diffusion equation in $\mathbb{R}^{n}$. We consider a pyramidal traveling front solution to the same equation in $\mathbb{R}^{n+1}$. As the speed goes to infinity, its projection converges to an $n$-dimensional polyhedral entire solution. Conversely, as the time goes to $-\infty$, an $n$-dimensional polyhedral entire solution gives $n$-dimensional pyramidal traveling front solutions. The result in this paper suggests a correlation between traveling front solutions and entire solutions in general reaction-diffusion equations or systems.