On the Theory of Three-Dimensional Multihump Solitons in Active-Dissipative Mediaстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Stable localized nonlinear coherent structures, i.e. solitons, play a key role in the stochastization of the processes occurring in active-dissipative media. In this study, three-dimensional multihump solitons are investigated for a model equation which qualitatively describes the wave processes in some physical systems. The existence of 3D multihump solitons is demonstrated numerically and the soliton behavior is studied. The results are generalized to describe multihump solitons in descending viscous-fluid layers. An unusual physical phenomenon observed in experiments, namely, stable two-hump coherent structures on the surface of a downflowing viscous-fluid layer, is explained qualitatively.