Applying the theories and method of local input in nonlinear geometric control, the paper studies the output controllability for a nonlinear analytic system.
主要研究一类非线性解析系统的输出可控性，给出了局部意义下输出可控的定义。
2
A computer algebra analysis method of weak controllability and weak observability for nonlinear systems is discussed.
讨论非线性系统弱能控性与弱能观性计算机代数的分析方法。
3
The concept of controllability distribution is introduced for nonlinear singular control systems, and the feedback invariant properties of this controllability distribution are discussed.