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1.
COMPARISONOFLAGRANGEINTERPOLATIONANDHERMITE-FEJERTYPEINTERPOLATIONOFHIGHERORDERShiYingguang(史应光)(ComputingCenter,AcademiaSini...  相似文献   

2.
In this paper the uniform convergence of Hermite-Fejer interpolation and Griinwald type theorem of higher order on an arbitrary system of nodes are presented.  相似文献   

3.
4.
§1IntroductionThe generalized Ball curves possess many properties similar to the properties of Béziercurve and an advantage that there are more efficient elevation and recursive algorithms forevaluating the points on curve[1-3].The dual functionals are an important tool forconversing various bases and studying the properties of curve and surface.Lai gave thedual functionals of polynomials in B-form or in Bézier form over a simplex[4].In theunivariate setting the dual functionals of variou…  相似文献   

5.
The author investigates the hyper order of Solutions of the higher order linear equation, and improves the results of M. Ozawa[15], G. Gundersen[6] and J. K. Langley[12].  相似文献   

6.
In this paper, we investigate complex homogeneous and non-homogeneous higher order linear differential equations with meromorphic coefficients. We obtain several results concerning the iterated order of meromorphic solutions, and the iterated convergence exponent of the zeros of meromorphic solutions.  相似文献   

7.
Using the theory of coincidence degree, the authors studied the existence of periodic solutions for higher order delay functional differential equations of neutral type with restoring terms and some new results for the existence of periodic solutions have been obtained.  相似文献   

8.
对于复域中满足某种条件的 Jordan区域 D和函数 f∈B(D),证明了基于 Fejér点的高阶Fejér插值多项式一致收敛于对应的函数f(z)于D上。本文中的这些定理推广了某些已知的结果.  相似文献   

9.
In this paper, we study the global attractivity of solutions of higher order nonlinear difference equation xn+1=f(xn+1-1,xn+1-2,…,xn,xn-1,)n=0,1,2,…, where f is a continuous, positive, decreasing function on [0,+∞)1+1\{(0,…,0)}. We extend some known global behavior of the solutions of nonlinear higher order difference equations.  相似文献   

10.
Sufficient conditions to guarantee the oscillations of higher order ODE with impulses are obtained. The importance of the impulsive effect on the oscillations of higher order differential equation is stressed.  相似文献   

11.
本文给出高阶 Herm ite- Fejér型内插的一个性质  相似文献   

12.
In this paper, a class of higher order linear differential equation is investigated. The order and the hyper-order of the solutions of the equation are exactly estimated under some certain conditions.  相似文献   

13.
The existence of periodic solutions is proved for the higher order nonlinear differential equation by applying Leray-Schauder principle and Wirtinger's inequality.  相似文献   

14.
In this paper necessary and sufficient conditions for the existence of no noscillatory solutions of a class of higher order nonlinear functional differential systems are obtained.  相似文献   

15.
Asisknown ,itisveryimportanttoapproximateunboundedcontinuousfunctions,especiallythosedefinedonalargerange .Aneffectivemethodcalledthemethodofmultiplier enlargementhasbeenputforwardbyL .C .HsuandR .H .Wang[1— 3].Thismethodwasgreatlydevelopedin [4,5] .Inthispaper,we…  相似文献   

16.
A singularly perturbed eigenvalue Robin problem with turning point of higher order is studied, which can describe some heat conduction phenomena. Using the method of Langer transformation, the uniformly asymptotic solution of the equation is obtained, which is expressed by Bessel function, and the eigenvalue and eigenfunction of the problem are given, and then the known result is generalized.  相似文献   

17.
§1 IntroductionLetRddenotethed-dimensionalEuclideanspacewithinnerproduct(·,·)andthenorm|·|.WewriteP(Rd)forthesetofprobabilitymeasuresonRd,μ*vfortheconvolutionofμ,v∈P(Rd)andδx(x∈Rd)fortheprobabilitymeasureconcentratedatthepointx.Anelementμ∈P(Rd)iscalledinfinitelydivisibleifforanyn=2,3,...,thereexistsμn∈P(Rd)suchthatμ*nn=μ.Further,μisinfinitelydivisibleifandonlyifthecharacteristicfunctionμ^ofμisofthenormμ^(z)=exp-12(z,Az)+i(γ,z)+∫Rd(ei(z,x)-1-i(z,x)1D(x))M(dx).(1.1)w…  相似文献   

18.
1DefinitionsandElementaryResultsAtthebeginningofthissectinn,westartwithanintegro-dmerentialoperatorGactingonCZ(alltwicelydifferentiablefunctionswithcompactsupport),whichisdefinedasfollows.whereb=(hi)eRe,anda=(ail)issymmetricandnonnegativedefinite,Q=(qij)isadxdmainswithalleigenvalueshavingpositiverealparts,andvisameasureoilRdsatisfyingthatv({0})=0andIfCO(Rd)denotestheBanaChspaceofallcontinuousfunctionsvanishingatinfinitywiththesupremumnorm,thenGhasthesmallestclosedextentionontheBanachspac…  相似文献   

19.
The results of accurate order of uniform approximation and simultaneous approximation in the early work “Jackson Type Theorems on Complex Curves” are improved from Fejér points to disturbed Fejér point...  相似文献   

20.
The polynomials related with cubic Hermite-Padéapproximation to the exponentialfunction are investigated which have degrees at most n,m,s respectively.A connectionis given between the coefficients of each of the polynomials and certain hypergeometricfunctions,which leads to a simple expression for a polynomial in a special case.Contourintegral representations of the polynomials are given.By using of the saddle point methodthe exact asymptotics of the polynomials are derived as n,m,s tend to infinity throughcertain ray sequence.Some further uniform asymptotic aspects of the polynomials are alsodiscussed.  相似文献   

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