Peculiarity of chaotic and regular dynamics of waves
  It is shown, that at weakly nonlinear interaction of waves are possible as modes with chaotic dynamics, and with increasing degree of coherence. Conditions are found at which they arise. One of the types of such interaction is decays. The important features of such processes in plasma are modes with cascades. They arise in that case when the high-frequency wave which has appeared as a result of decay can take part in new decay. Chaotic dynamics of decays can be used for formation of spectra of excited oscillations. For realization of such possibility the dispersive properties of a cylindrical wave guide partially filled by magnetoactive plasma are investigated. It is shown, that such electrodynamic structure is convenient for realization as regular and chaotic modes. 
Vyacheslav Buts, Igor Kovalchuk, Dmytro Tarasov, Alexander   Tolstoluzhsky
nlin.CD physics.plasm-ph