英语释义

1. a prescribed combination or sequence of operations involving differentiation

片语

partial differential operator[数]

elliptic differential operator[数]

differential-operator inclusion微分

nabla劈形算符；微分算符

differential extremum operator差分极值算子

fractional differential cover operator掩模算子

differential evolution operator差分进化算子

differentiation operator微分算子

weak differential operator[数]

integro-differential recursion operator积分

adjoint differential operator[数]

英汉例句

• in comparison with the differential operator and its inverse - integral operator, the difference operator and its inverse (sum operator) are discussed in this paper.

  与微分算子及其逆算子积分算子作比较，讨论了差分算子及其逆算子（和分）。

• in addition to further improving the segmenting performance, we combine differential operator and the lowest frequency subband(called scale coefficients in wavelet transform) with cahmt and prod.

  其次，为了进一步提高cahmt算法分割的效果，将该算法与微分算子、尺度系数相结合提出了两种新的文本图像分割算法。

• the series solutions of the linear ordinary differential equation at singular point were studied via the infinite order matrix of the linear differential operator in power series basis.

  应用线性微分算子在幂基下的无限阶矩阵，研究线性微分方程在奇点处的级数解。

• the method of fundamental solutions(mfs), one of the radial basis function(rbf) methods, employs the fundamental solutions to the governing differential operator as the euclidean distance based rbf.

  基本解方法属于径向基函数类方法，它使用微分算子的基本解作为基于欧氏距离的径向基函数。

• two sufficient conditions for the discreteness of two-order self-adjoint vector differential operator are given in last part.

  第四章研究了二阶自伴向量微分算子，得到其谱是离散的两个充分条件。

• the differential operator theory has many applications in the field of mathematical physics, mechanics and so on.

  微分算子理论在数学物理、力学等领域有着广泛应用。

• chapter one is divided into two parts: in the first part, we give the simple summarize of adjointness of differential operator product;

  第一章：引言和预备知识部分，主要是关于微分算子的积算子自伴的研究情况和对称微分算子的一些基本知识。

• differential operator technique;

  微分算符技术；

• the global fourier transform can also be obtained by switching(up to sign) the multiplication by a coordinate of the affine line and the differential operator with respect to this coordinate.

  它等同于通过交换（可能差一个正负号）由局部坐标给出的数乘和这个局部坐标相对应的微分算子得到的微分模。

• the former is called the spectra analysis of a differential operator and the latter is the inverse spectra problem.

  前者称为微分算子的谱分析，后者称为逆谱问题。

• in the first part, the background and development of differential operator (vector differential operator) theory are introduced simply.

  全文共分为四部分：第一章，简单介绍了微分算子（向量微分算子）理论的背景和进展；

• after getting the spatial differential operator out of the integral sign and computing the rest with the discrete complex image method, a closed form of green's functions can be obtained.

  然后通过将空间偏导转移至格林函数谱域积分的积分号之外，并采用离散复镜像方法来近似余下的零阶索末菲积分，进一步得到并矢格林函数各个分量的闭合形式。

• the problem of minimum_energy optimal control for multivariable linear systems determined by a class of differential operator matrixes is investigated.

  考察由一类微分算子阵描述的多变量线性系统的极小能最优控制问题。

• the hamiltonian of the system is the driac operator which as a matrix differential operator is not semibounded from below.

  系统的哈密顿函数是作为矩阵微分算子的狄拉克算子，它不是半有界的。