A cell complex structure for the space of heteroclines for a semilinear parabolic equation

Abstract

It is well known that for many semilinear parabolic equations there is a global attractor which has a cell complex structure with finite dimensional cells. Additionally, many semilinear parabolic equations have equilibria with finite dimensional unstable manifolds. In this article, these results are unified to show that for a specific parabolic equation on an unbounded domain, the space of heteroclinic orbits has a cell complex structure with finite dimensional cells. The result depends crucially on the choice of spatial dimension and the degree of the nonlinearity in the parabolic equation, and thereby requires some delicate treatment.

17 pages, 8 figures

References in corpus (4)

• Classification of connecting solutions of semilinear parabolic equations
• An asymptotic-numerical approach for examining global solutions to an ordinary differential equation
• Instability of an equilibrium of a partial differential equation
• Construction of eternal solutions for a semilinear parabolic equation