查询词典 algebraic closure operator

A new algebraic system X is constructed by using the known loop algebra 1 and difference operators.

首先利用环代数1和微分算子构建一种新的代数系统X。

And the further research is carried out for stability of differential algebraic hybrid system. And the stability theory put forward in the dissertation is used in the analysis and control of voltage stability of power system.

针对微分代数混杂系统的稳定性分析进行深入研究，并将其应用于电力系统电压稳定性的分析和控制。

For the same system algebraic characterization of its infinite fixed modes is given.

主要工作可概括如下：第二章研究了所述系统的固。。。

And the scheme for constructing sliding mode hyperplane with the solution of the algebraic Riccati equation of nominal system is proposed.

在匹配不确定线性系统的鲁棒控制方面，本文总结了一些现有的鲁棒控制算法，为船舶运动控制的实际应用奠定了基础。

The constant element scheme is adopted in the discretization of BIE, anda system of linear algebraic equations is obtained.

采用常单元方案对边界积分方程进行离散化，得到了问题的线性代数方程组。

Preliminaries: An introduction to the basic ingredients of the algebraic system, such as sets and mappings of these sets.

预备知识：介绍代数系的基本要素，即集合，集合的映照。

The paper is devoted to the quartic invariant algebraic curves in quadratic system.

本文在给定参数满足一定的条件下，研究了一类二次系统的四次不变代数曲线系统平衡点的稳定性态，并运用Dulac函数法给出了该系统不存在极限环的充分条件，这一研究在同类问题中具有一定的拓展性。

First, based on the nonlinear differential algebraic model of power system, a dissipative Hamiltonian realization is proposed via pre-feedback control.

首先建立了系统的非线性微分代数方程模型，通过预置状态反馈完成了耗散Hamilton实现。

In conclusion, all our results further enrich, develop and perfect the theoretical system of the algebraic multigrid method.

代数多重网格方法是根据一般多重网格方法的原理建立起来的一种自动求解线性代数方程组的快速算法，它采用分层思想通过一种纯代数的多水平方法处理矩阵方程，特别是二维或三维大规模无结构方程组。

The minimal number of the generators or the minimal set of the genera- tors of an algebraic system, is a very fundamental problem.

在代数体系的结构和分类理论当中，最小生成元的个数及其具体的刻划是一个基本问题。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。