THE PROLONGATION STRUCTURES AND NONLOCAL SYMMETRIES FOR MODIFIED BOUSSINESQ SYSTEM

(整期优先)网络出版时间:2014-01-11
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TheWahlquist-Estabrook(WE)prolongationstructuresofmodifiedBoussinesq(MB)systemarestudiedfromthecoveringspointofview.Therealizationsandclassificationsofone-dimensionalcoveringsofthissystemareobtainedcompletely.MoreoverthesufficientandnecessaryconditionsforavectorfieldtobeanonlocalsymmetryofthissystemarealsodemonstratedintheWEprolongationstructures.