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Название: Quasiperiodicity in Dissipative Systems: a Renormalization Group Analysis
Автор: Feigenbaum M.J.
Dynamical systems with quasiperiodic behavior, i.e., two incommensurate frequencies, may be studied via discrete
maps which shot" smooth continuous invariant curves with irrational winding number. In this paper these curves are followed using renormalization group techniques which are applied to a one-dimensional system (circle) and also to an area-contracting map of an annulus. Two fixed points are found representing different types of universal behavior: a trivial fixed point for smooth motion and a nontrivial fixed point. The latter represents the incipient breakup of a quasiperiodic motion with frequency ratio the golden mean into a more chaotic flow. Fixed point functions are determined numerically and via an e-expansion and eigenvalues are calculated