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Article
Nearly real fronts in a Ginzburg-Landau equation
Proceedings of the Royal Society Edinburgh
  • C. K. R. T. Jones
  • T. M. Kapitula
  • James A. Powell, Utah State University
Document Type
Article
Publication Date
1-1-1990
Disciplines
Abstract

Subcritical fronts are shown to exist in a quintic version of the well-known complex Ginzburg–Landau equation, which has a subcritical pitchfork as well as a supercritical saddle-node bifurcation. The fronts connect a finite amplitude plane wave state to a stable zero solution. The unstable manifold at finite amplitude and stable manifold of vanishing amplitude solutions are shown to intersect transversely on an invariant zero-wavenumber manifold with parameters set to be real. By the persistence of transverse intersection, frontal connections exist for a continuum of nearly real fronts parametrised by appropriate variables that exhibit some interesting changes in dimension.

Citation Information
C.K.R.T. Jones, T.M. Kapitula and J. Powell. “Nearly real fronts in a Ginzburg-Landau equation,’ Proc. Roy. Soc. Edinburgh 116A, 193–206, 1990.