General Solution and Localized COherent Soliton Structures of the （2＋1）—Dimensional Generalized Davey—Stewarson Equations  

作　　者：ZHENGChun-Long HUANGWen-Hua 等 

机构地区：[1]DepartmentofPhysics,ZhejiangLishuiNormalCollege,Lishui323000,CHina NonlinearPhysics,ZhejiangNormalUniversity,Jinhua321004,CHina [2]NonlinearPhysics,ZhejiangNormalUniversity,Jinhua321004,CH

出　　处：《Communications in Theoretical Physics》2002年第6X期653-656,共4页理论物理通讯（英文版）

基　　金：浙江省新世纪151人才工程项目，浙江省自然科学基金

摘　　要：In this paper, the variable separation approach is used to obtain localized coherent structures of the (2+1)-dimensional generalized Davey-Stewarson equations: iqt + 1/2(qxx + qyy) + (R+ S)q = O, Rx=-σ/2|q|2y Sy = -σ/2|q|2/x.Applying a special Backlund transformation and introducing arbitrary functions of the seed solutions, an abundance of the localized structures of this model is derived. By selecting the arbitrary functions appropriately, some special typesof localized excitations such as dromions, dromion lattice, breathers, and instantons are constructed.

关 键 词：非线性偏微分方程 Darey-Stewa-Son方程 相干孤子结构 

分 类 号：O175.29[理学—数学]