Special Session 13: Propagation Phenomena in Reaction-Diffusion Systems

Entire solutions with and without radial symmetry in balanced bistable reaction-diffusion equations

Masaharu Taniguchi
Research Institute for Interdisciplinary Science, Okayama University
Japan
Co-Author(s):    
Abstract:
Let $n\geq 2$ be a given integer. In this paper, we assert that an $n$-dimensional traveling front converges to an $(n-1)$-dimensional entire solution as the speed goes to infinity in a balanced bistable reaction-diffusion equation. As the speed of an $n$-dimensional axially symmetric or asymmetric traveling front goes to infinity, it converges to an $(n-1)$-dimensional radially symmetric or asymm\ etric entire solution in a balanced bistable reaction-diffusion equation, respectively. We conjecture that the radially asymmetric entire solutions obtained in this paper are associated with the ancient solutions called the Angenent ovals in the mean curvature flows.