查询词典 positive definite matrix

This condition only requires finding a common positive definite matrix in each maximal overlapped-rule group.

在此基础上，提出了一个新的判定系统稳定性的充分条件，该条件仅需在每个最大交叠规则组中分别寻找各自公共的正定矩阵。

This condition only requires finding a common positive-definite matrix in each maximal overlapped-rule group. It can reduce the difficulty of former stability analysis approaches.

该条件只需在各最大交叠规则组内分别寻找公共的正定矩阵，减小了以往稳定性判定方法的局限性和难度。

Based on the definitions of generalized positive definite matrix , a further study of it is made in the present paper, and several new results are obtained as a consequence.

本文利用广义正定矩阵的概念，对其作进一步的研究，并由此得出广义正定矩阵的几个新结果。

It wishes to find a new way for normative research into the concept of generalized positive definite matrix.

希望为广义正定矩阵概念的规范化探出一条新路。

When a common positive definite matrix can not be found to design fuzzy model-based controller, the improved adaptive reconfigurable control scheme based on fuzzy model and neural network is proposed.

同时，当现有的基于模型的模糊控制器无法求解时，文中给出了一种改进的基于模糊模型和神经网络的自适应重构控制方案。

However, a great lot of fuzzy rules are needed to approximate a complex nonlinear system, which can lead to a great lot of LMIs related to the number of fuzzy rules. In this case, positive definite matrix P might not exist.

可是，当需要大量的模糊规则来逼近一个复杂的非线性系统时，就导出与模糊规则数有关的大量LMIs，这可能会导致正定矩阵P不存在。

Compared with former stability analysis approaches, this approach can not only overcome the defect of finding a common positive definite matrix but also reduce the number of solving Lyapunov inequalities.

较之以往稳定性判定方法，此方法不仅克服了需要寻找一个公共矩阵的不足，而且也减少了求解Lyapunov不等式的个数。

Compared with former stability analysis approaches, this approach can not only overcome the defect of finding a common positive definite matrix but also reduce the number of solving Lyapunov inequalities largely.

较之以往稳定性判定方法，此方法不仅克服了需要寻找一个公共矩阵的不足，而且也减少了求解Lyapunov不等式的个数。

But also extend and improve the recent literature on the lower bound estimate of the determinant modulo about the Hadamard product of the complex generalized positive definite matrix.

而且也推广和改进了最近有关复广义正定矩阵的Hadamard乘积的行列式的模的下界估计文献。

Another way infixing R2 into the M-V model results in violating the restriction of the M-V models, which the covariance matrix must be positive definite matrix, and then leads the performance of the portfolio to be worse eventually.

而另一种方式权重配置方式，将R2嵌入M-V模型方式所得出的结果，则违反了M-V模型的限制条件之一，即所变化后的共变异矩阵违反了正定的限制，最后使得投组的绩效变差。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。