查询词典 birational invariant

This paper studies the group invariant np, the number of G-orbits of Sylow intersections, which plays an important role in the research of block theory and indecomposable modules of finite groups.

在有限群的研究中，Sylow p-子群无疑起到了非常重要的作用；同样，Sylow p-子群交在有限群不可分解模和块论研究当中的作用也是不容忽视的。

This paper gives the time domain integral constraints of the feedback control systems tracking error that arise from the presence of stable zeros on or near the jω-axis, which shows that for a linear time invariant system, in order to guarantee the stability of the closed-loop system, the time domain integral constraints must be satisfied by the tracking error.

本文给出了反馈控制系统接近虚轴或虚轴上的稳定零点对跟踪误差的时间域积分约束。这一时间域积分约束是任何一个线性时不变系统为保证其闭环系统的稳定性，其跟踪误差必须满足的。

The deduced integral invariant is employed to study the 3D predator-prey Lotka-Volterra systems and some new results are obtained.

利用此积分不变量，对三维捕食被捕食 LVS解的渐近性进行讨论，得到了平衡点全局渐近稳定的新条件，推广了已有LVS正平衡点全局渐近稳定的结

Firstly, the quantum Poincar?-Cartan integral invariant for the system with finite freedom is developed.

首先，研究了有限自由度系统的量子Poincaré-Cartan积分不变量。

In chapter 1, we introduce the definitions of area integral S_β and invariant g-function on unit sphere, and study their boundedness on BMO and non-isotropic Lipschitz spaces.

共分三章，第一章引进了C~n单位球面上的面积积分和不变g函数，研究它们在BMO空间以及non-isotropic Lipschitz空间上的有界性问题。

Introducing the notions of module algebra, Smash product and left integral we consider the relation between A#L and invariant subalgebra A〓.

在引入模代数、Smash积、左积分的定义之后，我们考虑A#L与不变子代数A〓之间的关系。

The method is a com- bination of the theory of normally hyperbolic invariant manifolds and an appropriate continuation method.

我们将在第四章利用法向双曲不变流形理论和Kopell，Chicone的延拓方法，来证明2个自由度的非哈密顿扰动系统的2维共振不变环面的存在性定理。

For the integrable Hamilton systems, the Invariant tori can be continuation in a certain range if the perturbation of the coupled systems is small enough.

对可积分的Hamilton系统，加上足够小的扰动，系统的不变环面所代表的规则运动在一定范围内都是可延拓的。

Crystal ; axial symmetry element ; invariant subspace ; the trace of a matrix

晶体；轴性对称元素；不变子空间；矩阵的迹

From K-G Equation and Dirac equation,using 2-D invariant line element, the radius equation and event horizon formula of particles are obtained.A simpler method to the research of quantum effect of the scalar and vector particles in black hole with spherical symmetry is singgested.

分别从K-G方程和Dirac方程入手，利用简化后的二维不变线元，直接给出了粒子的径向方程和视界面方程公式，为研究球对称黑洞中标量粒子和矢量粒子的量子效应提供了一个更简单的方法。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。