a Department of Physics, Zhejiang University, Hangzhou 310027, China; b Institute of Nonlinear Physics, Zhejiang Normal University, Jinhua 321004, China; c Department of Physics, Jiangxi Yichun University, Yichun 336000, China
Abstract The variable separation approach is used to find exact solutions of the (2+1)-dimensional long-wave－short-wave resonance interaction equation. The abundance of the coherent soliton structures of this model is introduced by the entrance of an arbitrary function of the seed solutions. For some special selections of the arbitrary function, it is shown that the coherent soliton structures may be dromions, solitoffs, etc.
Received: 10 May 2002
Revised: 10 July 2002
Accepted manuscript online:
PACS:
03.75.Lm
(Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)
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