In this paper, we analyze the onset of phase-dominant dynamics in a uniform
ly forced system. The study is based on the numerical integration of the Sw
ift-Hohenberg equation and adresses the characterization of phase disorder
detected from gradient computational operators as complex entropic form (CE
F). The transition from amplitude to phase dynamics is well characterized b
y means of the variance of the CEF phase component. (C) 2000 Elsevier Scien
ce B.V. All rights reserved.