简介:Usingtheextensionhomogeneousbalancemethod,wehaveobtainedsomenewspecialtypesofsolitonsolutionsofthe(2+1)-dimensionalKdVequation.Startingfromthehomogeneousbalancemethod,onecanobtainanonlineartransformationtosimple(2+1)-dimensionalKdVequationintoalinearpartialdifferentialequationandtwobilinearpartialdifferentialequations.Usually,onecanobtainonlyakindofsoliton-likesolutions.Inthisletter,wefindfurthersomespecialtypesofthemultisolitonsolutionsfromthelinearandbilinearpartialdifferentialequations.``
简介:Inthiswork,itisaimedtofindone-andtwo-solitonsolutionstononlinearTzitzeica-Dodd-Bullough(TDB)equation.Sincethedoubleexp-functionmethodhasbeenwidelyusedtosolveseveralnonlinearevolutionequationsinmathematicalphysics,wehavealsouseditwiththehelpofsymboliccomputationforsolvingthepresentequation.Themethodseemstobeeasierandmoreaccuratethankstotherecentdevelopmentsinthefieldofsymboliccomputation.