Complex Ginzburg-Landau equation in the presence of walls and corners - art. no. 036205

We investigate the influence of walls and corners (with Dirichlet and Neuma nn boundary conditions) in the evolution of two-dimensional autooscillating fields described by the complex Ginzburg-Landau equation. Analytical solut ions are found, and arguments provided, to show that Dirichlet walls introd uce strong selection mechanisms for the wave pattern. Corners between walls provide additional synchronization mechanisms and associated selection cri teria. The numerical results fit well with the theoretical predictions in t he parameter range studied.