简介:Theoreticalresultsonthescalingpropertiesofturbulentvelocityfieldsarereportedinthisletter.BasedontheKolmogorovequationandtypicalmodelsofthesecond-orderstatisticalmoments(energyspectrumandthesecond-orderstructurefunction),wehavestudiedtherelativescalingusingtheESSmethod.ItisfoundthattherelativeEESscalingexponentS_2isgreaterthantherealortheoreticalinertialrangescalingexponentξ_2,whichisattributedtoanevidentbumpintheESSrange.
简介:Thenaturalmeasureofacertainareainphasespaceisdefinedfirstly.Onthebasisofnaturalmeasure,theexpressionofLyapunovexponentbasedonunstableperiodicorbits(UPOs)ofchaoticsystemsisdeducedfromtheoreticalaspect.Then,bymeansoftheinherentrelationbetweenUPOsandsystematicLyapunovexponent,thetransitionalmechanismandrouteofchaoticsystemsfromlow-dimensionalchaostohigh-dimensionalchaosareexplained.Intheend,anovelmethodforcomputingsystematicLyapunovexponentsbasedonUPOsisproposed.Itscomputingprocedureisalsosummarized.ThechaoticsystemdescribedbyHenonmapistakenasexample.ThroughcalculatingtheLypunovexponentsofthissystem,validityofthesuggestedmethodisverified.
简介:Inthispaper,byapplyingthetechniqueofthesharpmaximalfunctionandtheequivalentrepresentationofthenormintheLebesguespaceswithvariableexponent,theboundednessoftheparameterizedLittlewood-Paleyoperators,includingtheparameterizedLusinareaintegralsandtheparameterizedLittlewood-Paleyg*λ-functions,isestablishedontheLebesguespaceswithvariableexponent.Furthermore,theboundednessoftheircommutatorsgeneratedrespectivelybyBMOfunctionsandLipschitzfunctionsarealsoobtained.
简介:Inthispaper,weconsiderthefollowingproblem{-Δu(x)+u(x)=λ(u~p(x)+h(x)),x∈R~N,u(x)∈h~1(R~N),u(x)>0,x∈R~N,(*)whereλ>0isaparameter,p=(N+2)/(N—2).Wewillprovethatthereexistsapositiveconstant0λ*,auniquesolutionforλ=λ*.Furthermore,(*)possessesatleasttwopositivesolutionswhenλ∈(0,λ*)and3≤N≤5.ForN≥6,undersomemonotonicityconditionsofhweshowthatthereexistsaconstant0
简介:ThispaperdealswiththeCauchyproblemforadoublysingularparabolicequationwithaweightedsource■whereN≥1,1
max{0,3-p-p/N}satisfying2
1,andα>N(3-p-m)-p.Wegivethesecondarycriticalexponentonthedecayasymptoticbehaviorofaninitialvalueatinfinityfortheexistenceandnon-existenceofglobalsolutionsoftheCauchyproblem.Moreover,thelifespanofsolutionsisalsostudied.更多还原
简介:用混乱同步的性质,为估计最大的Lyapunov代表在的方法一多,有干燥磨擦的身体系统在这篇论文被介绍。Lagrange方程与多,系统的钳子在矩阵形式被给,它为数字计算是足够的。为计算滑块的概括速度和加速的途径被给决定在系统滑块滑倒或粘住。为滑倒滑倒并且粘住多滑动身体系统,他们的最大的Lyapunov代表被计算描绘他们的动力学。
简介:Inthispaper,weprovetheboundednessofthefractionalmaximaloperator,Hardy-LittlewoodmaximaloperatorandmarcinkiewiczintegralsassociatedwithSchr?dingeroperatoronMorreyspaceswithvariableexponent.
简介:在现在的纸,最大的Lyapunov代表为一种合作尺寸被调查在上的二个分叉系统一三维中央对由围住的噪音的参量的刺激歧管、使\O遭到。由使用一个不安方法,一个一个维的阶段散开过程的不变的措施的表情为三个案例被获得,在哪个矩阵B的不同形式,那在噪音刺激术语被包括,被假定然后作为结果,为一个维的阶段散开过程的所有三种单个边界被分析。经由Monte-Carlo模拟,我们发现不变的措施的分析表情遇见数字的很好。并且而且,P分叉行为为一个维的阶段散开过程被调查。为为一个维的阶段散开过程的单个边界的三个案例,最后,最大的Lyapunov代表的分析表达式为随机的分叉系统被介绍。