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1.
IntroductionThe following coupled cubic nonlinear Schr dinger equations inR2are considered:it-Δ=(||2-|ψ|2),t>0,x∈R2,iψt-Δψ=(-||2 |ψ|2)ψ,t>0,x∈R2,(1)where=(t,x):[0,T)×R2→C,ψ=ψ(t,x):[0,T)×R2→C,Δis the Laplaceoperator onR2.The e  相似文献   

2.
IntroductionAttractorsofautonomousevolutionequationshavebeenintensivelystudiedinmathematicalliterature (see,forexample ,books [1 ] ,[2 ] ,[3 ] ,[4 ]andtheliteraturecitedthere) .Thenonautonomousinfinite_dimensionaldynamicalsystemswerelesswellunderstood .In 1 994 ,Chepyzh…  相似文献   

3.
Introduction WeconsidertheperturbedcouplednonlinearSchr dingerequations(CNLS)iq1t=q1xx 2[|q1|2 |q2|2-ω2]q1 iε(^D1q1-r1),iq2t=q2xx 2[|q1|2 |q2|2-ω2]q2 iε(^D2q2-r2),(1)whereqjis2πperiodicandeveninx.rjisconstant,^Djisboundeddissipativeoperatorand assumedtotaketheform^Djqj=-αjqj βj^Bqj,(2)αjandβjarepositiveconstants,j=1,2.^BisaFouriertruncationofLaplaceoperator xx,i.e.,^Bcos(kx)=-k2cos(kx),k0isasmallperturbation parameter.Th…  相似文献   

4.
The solitary wave solutions for the Klein-Gordon-Schrdinger Equations were obtained by using the homogeneous balance principle. The form of the solutions is more generalized than the result that has been proved by pure theoretical and qualitative method in literature; namely, the form of solutions in literature is a particular case of result of the present paper.  相似文献   

5.
IntroductionInthepresentpaperweconsiderthecoupledKlein_Gordon_Schr dinger (KGS)equationsasfollows:iψt+ 12 Δψ=-φψ ,φtt-Δφ+m2 φ=|ψ|2 .( 1 )( 2 )( 1 )and ( 2 )describeaclassicalmodelofinteractionofnucleonfieldwithmesonfield[1],whereψisacomplexscalarnucleonfield ,φ_arealmesonfi…  相似文献   

6.
IntroductionOwingtothefactthatthesolutionsoftheDirichletproblemsforaclassofsystemsofdifferentialequationsoftheformu″=v ,εv″ f(x ,u ,u′)v′ -g(x ,u ,u′)v=0   ( 0 <x <1,0 <ε 1) ,u( 0 ;ε) =0 ,u( 1;ε) =0 ,v( 0 ;ε) =α ,v( 1;ε) =β,( 1)havethequalitativepropertiesofsolutionsofamorecomplicatedsyste…  相似文献   

7.
THEEXISTENCEOFPERIODICSOLUTIONOFTHEFOURTHORDINARYNONLINEARDIFFERENTIALEQUATIONCAUSEDBYFLOW-INDUCEDVIBRATIONGuQing-fang(顾清芳)Ta...  相似文献   

8.
The Hölder continuity is proved for the gradient of the solution Jo the one-sided obstacle problem of the following variational inequality in the case 1相似文献   

9.
The Hǒlder continuity is proved for the gradient of the solution to the one-sided obstacle problem of the following variational inequality in the case 1相似文献   

10.
IntroductionInthispaper,weconsidertheexistenceofsolutionsoffollowingboundaryvalueproblemonreallineforLi啨nardsystem :u″-f(u)u′ g(u) =0 ,u(-∞ ) =0 , u( ∞ ) =1 ,(1 )wheref:R →Randg :R →RarefunctionsofclassC1.Amotivationforourresearchisconne  相似文献   

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