Some nonexistences of the nontrivial weak solutions for p-sub-Laplacian inequalities on Heisenberg group were investigated via considering some properties of the Heisenberg group and its vector fields and the admissible function method for the Laplacian inequalities on the Euclidean.
利用Heisenberg群及其向量场的一些性质,并结合Euclidean上Laplace不等方程的容许函数法,考虑了Heisenberg群上相应于p-sub-Laplace不等方程非平凡弱解的不存在性。
By means of linear matrix inequalities, sufficient conditions are presented to realize the input-output energy decoupling for a linear singular system so as to feature the closed-loop system with the performance above and admissibility (i.
考虑线性广义系统的输入 输出能量解耦问题,即从输入 输出的能量关系上实现解耦,使得任何一个输入能量主要控制对应的一个输出的能量,对其他输出能量的影响尽可能小·利用线性矩阵不等式,给出线性广义系统能够输入 输出能量解耦的充分条件,使得闭环系统具有上述性能,同时也是容许(即正则,稳定,无脉冲)的,并且基于线性不等式的解提出了相应的控制器设计方法,最后利用结果提出线性广义系统输入 输出能量解耦的算法并给出一个数值算例
This text gives an overview to the admissibility of unbounded control and observation operators for-semigroups in terms of the infinitedimensional linear systems theory.
本文综述无限维线性系统理论中无界线性控制与观测算子的容许性。
By means of linear matrix inequalities and generalized algebra Riccati inequalities, a sufficient condition is derived as such that a prescribed discrete-time singular system is admissible and strictly passive.
将无源的概念从非线性系统扩展到离散广义系统 ,进而研究离散广义系统在有界能量外部输入作用下的无源控制问题· 利用线性矩阵不等式和广义代数Riccati不等式 ,给出离散广义系统容许且严格无源的充分条件 ,并且基于此条件给出存在状态反馈控制器 ,使得闭环系统容许且严格无源的充分条件 ,同时提出了相应的控制器设计· 最后的数值算例说明了文中结论的有效
The resulting controllers guaranteeing the closed loop descriptor systems are admissible and an H ∞ -norm bound on disturbance attenuation.
所设计的H∞ 控制器使得闭环广义系统容许而且它的传递函数H∞ 范数有
The design guarantee the closed loop descriptor systems are admissible and an H ∞ norm bound on disturbance attenuation when the closed loop descriptor systems are normal and some controllers outage.
所设计的控制器保证在正常情况下和在某些元件出现故障的情况下 ,闭环广义系统容许而且它的传递函数的 H∞ 范数有
Physics and mechanics performance of paste-like backfill material in coal mine such as strength,allowable specific pressure and compressive rate was researched by experiment.
通过实验研究了煤矿似膏体充填体的强度、容许比压、压缩率等物理力学性能。
Based on the analysis of distribution of pressure applied by hydraulic support base on seam floor, a method to test the allowable specific pressure of high water content material was suggested.
在分析回采工作面支架底座作用在底板岩层上压力分布特征的基础上 ,选择正方体试件用钢质小圆柱加压实验的方法测定高水速凝材料容许比压 。