Based on the exact and explicit representations of differential operators in orthonormal bases of compactly supported wavelets,this paper presents an identification method for distributed parameter systems(DPS).
基于微分算子在紧支撑正交小波基下的精确显式表示,给出了一种分布参数系统辨识方法。
Sensitivity is different for different differential operators,how to choose a suitable edge detection operator to obtain exact information of edge,is the essential step for fracture surface image.
不同的微分算子对边缘的敏感程度是不同的,如何选用适当的边缘检测算子得到准确的边缘信息,就成为断口图像处理的关键步骤。
?Conclusion It is feasible to use several differential operators in digital mammographs′ edge-detection.
结论微分算子边缘检测方法对于数字乳腺图像是可行的。
For the sake of predicting the detection effect of differential operators,the frequency features of common operators are analyzed from the view point of frequency domain.
为了预测微分算子边缘提取能达到的效果,从频域角度出发,分析了边缘检测中常用微分算子的频谱特性。
The paper concerned with the estimates of eigenvalue s upper bound for some differential operator.
考虑一类微分算子谱的带权上界估计,利用分部积分、Rayleigh定理和Schwartz不等式等方法,获得了用前n个谱来估计第n+1个谱的上界的不等式,其估计系数与区间的几何度量无关,其结果包含了[2]和[3]的结论。
characteristic polynomial of a differential operator
微分算子的特征多项式
self-adjoint elliptic differential operator
自伴椭圆型微分算子
partial differential operator on manifold
流形上的偏微分算子
A New Method to Figure Out Differential Equation: Differential Arithmetic Operators Progression Method;
微分方程的新解法——微分算子级数法
Characterization of Domains of Self-Adjoint Ordinary Differential Operators and Spectral Analysis
微分算子的自共轭域和谱分析——微分算子研究在内蒙古大学三十年
Self-Adjoint Boundary-Value Problems for Products of Differential Operators and Spectral Properties of a Class of Differential Operators;
微分算子乘积的自伴边值问题与一类微分算子的谱特征
Notes on Partial Differential Operators in Differential Geometry;
关于某些偏微分算子在微分几何中的一些应用
Differential Operator Method in Solving the Group of Constant-coefficient Non-homogeneous Liner Differential Equations
常系数非齐次线性微分方程组的微分算子解法
Products of Composition Operator and Differentiation Operator between Generalized Bloch Spaces;
广义Bloch空间上的复合算子与微分算子的乘积
The Resolvent Operator and Spectrum of 2n-order J-self-adjoint Vector Differential Operator;
2n阶J-自伴向量微分算子的预解算子及其谱
eigenvalue and eigenfunction of partial differential operator
偏微分算子的特征值与特征函数
Embedding Theorems and the Discreteness of the Spectrum of a Class of Differential Opertors;
嵌入定理及一类微分算子谱的离散性
On the Self-Adjointness of Product of Two Odd-Order Differential Operators
两个奇数阶微分算子乘积的自共轭性
Analytic Descriptions of a Class Three-order Differential Operators’ Self-adjoint Domains
一类三阶微分算子自伴域的解析描述
Derivation Algebras and 2-Cocycles of the Algebra of (r,s)-Differential Operators;
（r，s）-微分算子代数的导子代数及其二上圈
Derivations and 2-cocycles of the algebra of(r,s)-differential operators
(r,s)-微分算子代数的导子及其二上圈(英文)
Decomposition of inverse differential operator and solution of high-order linear differential equation with constant coefficients;
逆微分算子的分解与常系数高阶线性微分方程的求解
The Classifications of Boundary Condition of the Self-Adjoint Differential Operators and Its Canonical Form;
自共轭微分算子边界条件的分类及其标准型
