  Theoretical and experimental study of high-acceleration patterns in vibrated
granular layers is presented. The order parameter model based on parametric
Ginzburg-Landau equation is used to describe strongly nonlinear excitations
including hexagons, interface between flat anti-phase domains and new localized
objects, super-oscillons. The experiments confirmed the existence of
super-oscillons and bound states of super-oscillons and interfaces. On the
basis of order parameter model we predict analytically and confirm
experimentally that the additional subharmonic driving results in controlled
motion of the interfaces.
