查询词典 invariant subspace

In this thesis,on thebasis of this generalized invariant theory,the invariant-related unitary transformation methodis developed and used to investigate the problems as follows

本论文在推广了的不变量理论的基础上，进一步发展了与不变量有关的幺正变换方法，并应用这一方法对如下问题进行了深入的研究

The mathematic process of deriving phase congruence invariant is discussed from theory, the formula of PC invariant is presented.

给出了相位叠加不变量pc的定义。

The works completed in this thesis make it clear that the invariant-related unitarytransformation method,developed on the basis of the generalized invariant theory,is a usefultool for the treatment of the time-dependent systems.

这些工作表明，在推广了的不变量理论基础上建立起来的与不变量有关的幺正变换方法是研究与时间有关问题的有力工具。

On the invariant theory,it proves that 〓-multiplier conv-ergent series have the full-invariant.

在不变性理论方面，证明了〓数乘收敛级数都具有全称不变性。

By applying the structure invariant theory in the control strategy, an equivalent structure invariant loading system is produced, which proved to be very effective in reducing the redundant force.

本文阐述了多余力产生的机理，研究了影响多余力的因素，探讨了消除多余力的途径，本文主要从控制策略方面，采用了结构不变性原理，建立模拟加载系统等效的结构不变性系统，从根本上来消除多余力的影响。

In this paper, we have used the theory of moment invariant to identify the orbit, constructed feature vector based on moment invariant, defined the distance between the two feature vectors, and proposed a new method of the identification, which ...

仿真与实验结果表明，该方法可以有效地识别常见的轴心轨迹，并收到了良好的效果

When scalar Lyapunov function is Lipschitz continuous and regular, Matrosov theorems with respect to a closed invariant set of a class of nonlinear discontinuous systems are proposed firstly and finally, the problem of finite-time stability with respect to a closed invariant set is considered.

论文最后主要讨论脉冲系统、奇异脉冲系统、线性不确定脉冲系统、不确定脉冲系统指定衰减度以及非线性脉冲系统的奇异H∞控制问题。

The equations of electromagnetic field are invariant with respect to the Lorentz transformation and the mechanical equations are invariant with respect to the classical transformation.

电磁场方程对于洛伦兹转换是不变的，而力学方程对于经典转换是不变的。

There are two main analysis techniques of Petri nets, one of which is invariant method. The invariant method is a linear algebraic analysis based on the matrix representation of Petri nets.

Petri网的分析方法有二种：可达树和不变量分析方法，其中，不变量分析方法是一种将矩阵描述应用于Petri网的线性代数分析方法。

In addition, we also give the characteristic of uniformly integrable martingale in the rearrangement invariant martingale space and the relationship between one martingale and the accompanying martingale associated with it which is particular in the rearrangement invariant martingale space under the action of some most important martingale operators such as maximal operator, square operator, the greater operator and the smaller operator.

此外我们还考虑了重排不变鞅空间中的鞅是否一致可积的特征以及极大算子、均方算子和上、下算子在重排不变鞅空间及其相伴鞅空间上作用的特殊性质。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。