查询词典 galerkin equations

However, in many practical problem of the linear system question, the linear system of equations has some important characteristic especially in leaning differential equation method and limited element method.

另外，与直接法相比，迭代法还具有一些明显的优点，比如占用计算机的内存单元少、计算程序比较简单、收敛速度比较快等，从而成为近年来解线性方程组采用较多的方法。

Neutral difFerential equation; characteristic ... 2007042712 Annals of Differential Equations 英文 OSCILLATION IN FIRST ORDER NEUTRAL DIFFERENTIA...

二阶微分方程；超线性；振动 2007042714 海南师范学院学报中文 OSCILLATION THEOREMS FOR NONLINEAR SECOND ORDE。。。

Based on the study of characteristic equation,we obtain some new oscillationcriteria for higher order neutral differential equations.

本文利用特征方程，建立了高阶中立型泛函微分方程新的振动准则，推广了文[1][2]中的工作，改进了文[3]中的结果

Based on the curve estimate of sap flow characteristic of Quercus acutissima using manifold curve model, the simulation curvilinear equation of environmental factors to sap flow were founded, but the availability of these equations differed each other.

基于对多种曲线模型对麻栎液流特征进行曲线估计，分别建立了各环境因子的模拟曲线方程，方程的有效性存在差异。

In order to reduce the computer time for solving the block-matrix equations, the characteristic matrix transformation is used.

采用特征向量变换，可在保证原方程组离散化精度的条件下使计算大为简化。

The statistical characteristic reflecting oilfield number and the equations related to Paleto's truncated distribution parameters are adopted.

采用了反映油田数量的统计学特征与帕列托截断分布参数有关的公式。

This text has relatively passed and pushed away France and characteristic root law and solved the difference of difference equations through these questions.

本文通过这些问题比较了递推法和特征根法解差分方程的差异。

The cross-high-order-cumulant such as the cross-fourth-order cumulant is firstly proposed to measure the signal and for the first time prove that the CHOC can control the non-relevant noises and Gaussian noises. And based on the cross-high-order spectral Yule-Walker equations, the sinusoidal signal matrix is decomposed by the way of singular value decomposition method.

摘 要：本文以互四阶累积量为依据，首次证明了互高阶累积量可以有效地抑制非相关噪声和高斯噪声；并在建立互高阶累积量的Yule-Walker方程的基础上，通过该矩阵的奇异值分解，建立了信号矢量空间与噪声矢量空间；首次提出了混合噪声背景下正弦参数估计的互高阶谱Pisarenko方法。

Based on the mutual compensation of thermal dispersion and chromatic dispersion, the equations are formulated for athermalization of optical system.

提出基于热差互补原理的无热差光学系统设计方法，建立了一组既消热差又消色差的方程组。

In this paper, the judgement of existing solution to circulant linear equations set and the solutions under all kinds of circumstances are presented by polynomial matrix theory.

摘要利用多项式矩阵理论，给出了循环线性方程组有解的判定并求出各种情况下的解。

I was up all night because I was in pain, she said.

我整夜，因为我在疼痛，她说。

A crow caws /craoks.

乌鸦叫。 51-论文网