Variable Separated Solutions and Four-Dromion Excitations for (2+1)-Dimensional Nizhnik-Novikov-Veselov Equation  

作　　者：HU Ya-Hong MA Zheng-Yi ZHENG Chun-Long 

机构地区：[1]College of Science, Zhejiang Lishui University, Lishui 323000, China [2]Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China

出　　处：《Communications in Theoretical Physics》2008年第3期679-684,共6页理论物理通讯（英文版）

基　　金：supported by National Natural Science Foundation of China under Grant No.10272071;the Natural Science Foundation of Zhejiang Province under Grant No.Y606049

摘　　要：Using the mapping approach via the projective Riccati equations, several types of variable separated solutions of the （2＋1）-dimensional Nizhnik-Novikov-Veselov equation are obtained, including multiple-soliton solutions, periodic-soliton solutions, and Weierstrass function solutions. Based on a periodic-soliton solution, a new type of localized excitation, i.e., the four-dromion soliton, is constructed and some evolutional properties of this localized structure are briefly discussed.

关 键 词：Imapping approach Nizhnik-Novikov-Veselov equation variable separated solution DROMION 

分 类 号：O45[理学—无线电物理]