The observer design problem for linear discrete multiple delays rectangular singular systems with unknown inputs is discussed. 摘要讨论含未知输入的多时滞离散非方奇异系统的观测器设计问题。
In the second chapter, the so-called singular optimum phenomenon is discussed and difficulties associated with singular optima are pointed out. 指出了由于奇异最优解的存在，给离散结构拓扑优化问题带来的困难。
