查询词典 lie

In this paper,all symmetries of the generalized kdv equation are obtained by means of infinitesimal generator of Lie group of transformation.

本文用Lie变换群的无穷小方法，求出了广义kdv方程的全部对称，并用特殊的对称将其化为常微分方程。

The main purpose of this dissertation is to study the problems of symmetries and conserved quantities of controllable nonholonomic systems and mechanico-electrical dynamical systems, based on the invariance of the Hamilton action under the infinitesimal Lie group transformation.

本文基于Hamilton作用量在无限小Lie群变换下的不变性，研究可控非完整系统与机电动力系统的对称性和守恒量问题。

The necessary and sufficient conditions under which the form invariance is a Lie symmetry is presented.

建立了系统的运动微分方程，给出了系统在特殊无限小变换下的形式不变性的定义和判据以及系统的形式不变性是Lie对称性的充分必要条件。

In Chapter one, the theory of irreducible unitary representations on two-step nilpotent Lie groups is introduced.

在第一章中，首先介绍了二步幂零Lie群上的不可约酉表示理论。

I would have to say the film I did – Lie with Me – the character Leila.

我会说是我拍过的电影《Lie with Me》里的角色Leila。

The third chaptermain research is two new high-dimensional Lie algebra and its applications.

第三章主要研究的是两个新的高维的Lie代数及其应用。

In chapter four, I discribe the Lie derivation on NEST algebra.

第四章中刻画了NEST代数上的Lie导子。

We give a detailed description of the structure of a Lie ideal in GICAR algebra .

本文给出了 GICAR代数中闭Lie理想的完全刻画。

Furthermore, in order to overcome the disadvantage of GMC, i.e., it can only apply to the processes with relative order of 1, based on Lie derivative, we propose to let the r th derivative of the process output follow the given reference trajectory, to get the control law expression through solving an optimization problem.

针对GMC方法只适于相对阶r为1的简单过程的缺点，采用Lie导数的概念，令过程输出的r阶导数的轨迹为事先设定的标称轨迹，通过解优化问题得到控制律表达式，把GMC方法推广至相对阶r大于1的复杂多输入多输出过程，从而提出了一种广义一般模型控制方法。

In chapter 5,Lie group analysis method was applied to nonlinear PDE with variable coefficients.

在这一章里，我们用Lie群分析法研究了带线性阻尼项的变系数广义Burgers方程。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。