微分算子

线性微分算子确定的函数类的N宽度的强渐近值

The Exact Asymptotic Value for the N-width of the Set Defined by Linear Differential Operator

本文使用这种边界条件对理想导电及均匀电磁可穿透材料圆柱散射体的表面场进行了数值计算，并与使用二阶微分算子B2型的吸收边界条件的结果作了比较。

Numerical results for perfectly conduction and homogeneous penetrable circular cylinder are presented and compared with the solutions by using second-order differential operator B2 type absorbing boundary condition .

用微分算子级数法得到分部积分公式，使一类积分计算变得十分简单。

By using differentiator series method , the formula of partial integration is obtained .

n元微分算子代数的导子李代数

Lie Algebra of Derivations of algebras of differential operators in n - variables

再生核空间W2~1中的微分算子样条插值

The spline interpolation of differential operator in reproducing kernel space W_2 ~ 1

与微分算子相联系的Hardy空间g函数刻画

The g Function Characterization of the Hardy Space Associated to the Differential Operators

首先利用环代数A~1和微分算子构建一种新的代数系统X。

A new algebraic system X is constructed by using the known loop algebra A ~ _1 and difference operators .

常系数J-自伴Euler微分算子的本质谱

The Essential Spectrum of Euler Differential Operators with Constant Complex Coefficients

复系数Euler微分算子的本质谱

On the Location of the Essential Spectra of Complex Euler Differential Operators

利用Green函数的性质也可研究微分算子的特征行列式，特征函数及其特征展开等。

One of them is by the studying of the Green function of the resolvent operator to study the spectrum , characteristic determinant , eigenfunctions and their expansion .

EULER-LAGRANGE能量微分算子■iE普遍方程及其应用

The DF general equations and its applications by Euler-Lagrange energy differential operator

在研究伪微分算子的基础上，研究了η（e，k）~j算子，得到了一些新的有用的结果。

After studying the pseudo-differential operator and operator of η _ ( e , k ) ~ j , some new useful results have been obtained .

2n阶J-自伴向量微分算子的预解算子及其谱

The Resolvent Operator and Spectrum of 2n-order J-self-adjoint Vector Differential Operator

本文介绍一种基于Hermite微分算子用于MR图像分割的水平集方法。

A level set segmentation algorithm based on Hermite derivative filter is proposed for segmentation of human magnetic resonance images ( MRI ) .

利用逆微分算子及其线性性质，给出了求n阶常系数线性一般非齐次项微分方程特解公式。

In this paper , using inverse differential operator and its linear property , we present the particular solution of n-th order general inhomogeneous linear ordinary differential equation with constant coefficient .

拟微分算子在Sobolev空间中可解性的充要条件

A necessary and sufficient condition for solvability of pseudodifferential operators in Sobolev space

在此基础上，利用反对称双正交小波变换的微分算子功能，提出了一种利用两幅人脸图象的小波变换系数差作为模式矢量的贝叶斯人脸识别方法，并利用AR人脸图象库进行了实验。

And then a new pattern vector that is formed by using coefficients of anti symmetrical biorthogonal wavelet decomposition is proposed for Bayesian face recognition .

通过对微分算子方程的理论分析，得到可用于数值计算的galerkin法和点匹配法的矩阵形式。

The matrix of numerical calculation for galerkin method and point-matching method is given through the analysis of differential operator equation .

研究了一类带有正系数的微分算子Dirichlet解的个数与谱的稠密性的关系。

The relationship between the number of Dirichlet solutions of differential operators with positive coefficients and spectral denseness is investigated .

介绍了微分算子级数法解简单的变系数微分方程：Euler方程的原理、方法和实例。

This article introduces the principle , methods and examples of using differentiator series method to solve simple variable coefficient differential equation & Euler Equation .

把Lagrange方程和Hamilton方程组写成矩阵形式，其系数矩阵的元素是非线性的微分算子。

The Hamilton equations and Lagrange equation are written on Matrix forms , in which the elements of coefficient matrix are non linear differential operators .

奇型Sturm-Liouville微分算子的限界自伴扩张

Bound-Limited Self-Adjoint Extensions for Singular Sturm-Liouville Differential Operators

奇型Sturm-Liouville微分算子的极大增生扩张

Maximal accretive extensions of singular Sturm-Liouville differential operators

Sturm-Liouville（SL）算子是数学和物理中最重要的微分算子之一。

Sturm-Liouville ( SL ) operator is one of the most important and ubiquitous differential operator in mathematics and physics .

在分析中，首先由谐波振荡器等效电路建立起振荡平衡方程，并利用Taylor级数和微分算子使方程得到简化。

In the process of analysis , the harmonic oscillation equivalent circuit is used to establish oscillation equilibrium equations , which is simplified by using Taylor series and differential operators .

提出了一种新的毛状修复算法思想来检测和修复毛状伪迹，它利用了2D高斯微分算子（DOG）、形态学函数和快速行进图像修复方法。

Next to detect and repair the hair-like artifacts , a new idea about hair-like repaired algorithm is proposed by using 2D derivative of Gaussian ( DOG ), morphological functions and fast marching inpainting methods .

实验结果表明，对于相同的分割过程，运用了Hermite微分算子的水平集方法，其分割结果更加精确。

Results of the segmentation tests proved that to the same segmentation process , the level set method utilizing Hermite derivative filter produced a more accurate result .

本文给出了Heisenberg群上形式相当一般的一类非齐次左不变微分算子局部可解的必要条件。

In this paper some necessary conditions are given on local solvability of nonhomogeneous left invariant differential operators with a comparatively general form on the Heisenberg group .

与Euler微分算子的本质谱进行比较，可见对数函数系数对算子的谱产生了很大影响。

The comparison of the essential spectrum of the operators concerned with that of the Euler differential operators showed that the logarithmic coefficients had a remarkable effect on the spectrum of the operators .

在研究拟微分算子及预小波基础上，探讨了jeη，k算子作用下的小波变换，得到了一些新的有用的结果。

On the basis of the study of pre-wavelet and pseudo-differential operator , the wavelet transform by η ~ j_e , k operator was studied , and some new useful results have been obtained .