On the number of determining nodes for the Ginzburg-Landau equation

In the case of the complex Ginzburg-Landau equation in one space dimension it is proven that solutions are completely determined by their values at two sufficiently close points. As a consequence, an upper bound for the winding number of stationary solutions is established in terms of the bifurcation parameters. It is also proven that the fractal dimension of the set of stationary solutions is less than or equal to 4.