Traveling-wave solutions of the Calogero-Degasperis-Fokas equation in 2+1 dimensions

被引:4
作者
Gandarias, ML [1 ]
Saez, S [1 ]
机构
[1] Univ Cadiz, Dept Matemat, Cadiz 11510, Spain
关键词
Lie symmetries; partial differential equations; solitary waves;
D O I
10.1007/s11232-005-0118-6
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Soliton solutions are among the more interesting solutions of the (2+1)-dimensional integrable Calogero-Degasperis Fokas (CDF) equation. We previously derived a complete group classification for the CDF equation in 2+1 dimensions. Using classical Lie symmetries, we now consider traveling-wave reductions with a variable velocity depending on an arbitrary function. The corresponding solutions of the (2+1)dimensional equation involve up to three arbitrary smooth functions. The solutions consequently exhibit a rich variety of qualitative behaviors. Choosing the arbitrary functions appropriately, we exhibit solitary waves and bound states.
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页码:916 / 926
页数:11
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