CHAOTIC BEHAVIOUR OF NONLINEAR WAVES AND SOLITONS OF PERTURBED KORTEWEG-DE VRIES EQUATION

This paper considers the properties of nonlinear waves and solitons of Kortewegde Vries equation in the presence of external perturbation. For time-periodic hamiltonian perturbation the width of the stochastic layer is calculated. The conclusions about chaotic behaviour in long-period waves and solitons are inferred. Obtained theoretical results find experimental confirmation in experiments with the propagation of ion-acoustic waves in plasma.