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1 设闭区域D由可求长的简单闭曲线C围成。令A=α~2/αxαy表微分算子。又设A~mF(x,y)和A~mP(x,y)在D上连续。重复应用Gieen公式和数学归纳法可得下列积分关系式 相似文献
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本文在最广条件下找到了大参数积分integral from n=0 to 1 f(x,{Nx})dx的一对渐近展开公式,其中{Nx}表示非负实数Nx的分数部分。这些公式对振荡函数的积分计算及线积分逼近重积分方法都有应用。 [2]曾就大参数N为正整数的情形,得出了所论积分的渐近展开式。但就N为非整数的情形,原来的论证方法不再适用。考虑到在实际问题中,例如当f(x,y)对变元y具有 相似文献
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In this paper,we extend the generalized multiresolution analysis(GMRA)to higher dimensional spaces.The GMRA is generalized from each ladder spaceexpanded by a different scaling function with positive integer dilation factor m≥2.The n-d GMRA is discussed in orthogonal and bi-orthogonal cases.Then the optimalm-band wavelets are applied in processing the image datasets of the human bodyslices.The efficiency and superiority of the algorithm can be seen from the processingresults. 相似文献
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Let{V,,jeZ}beamu1tiresolution,withV;gV,+,.Inpractice,weoftenneedtoconsidertheequi-appr0ximati0nofamultiresolution(seeLl'2'3J)toafunctionspaceVorafunctionsetF.ThiscanbewrittenaswhereVGL'(R"),F=L'(R"),VI=L'(R')(IeZ),andPv,isaprojectionoperatorofLz(R")-Vz.ThuswecanusePv,finsteadoff,approximately.Investigati0nofthisproblemhasveryimportantpraticalvalueandthe0reticalsignificance.Considerations0fthisquestionalsoleadtobetterunderstandingformultiresolution.FromTheorem2weknowthatforalljeZ,V… 相似文献
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