The latter chapters of this paper mainly discussed invariant subset of noncompact space, and topological conjugacy or topological semi-conjugacy of generalized symbol dynamical system. 本文最后主要讨论了一般动力系统与广义符号动力系统之间的拓扑关系:不变子集,拓扑共轭和拓扑半共轭等。
Moreover, from our proof, the state trajectory enters the positively invariant subset of the region of attraction in finite time and achieves asymptotical stabilization ultimately. 同时给出了系统吸引区内的一个正不变子集,并证明了系统状态能够在有限时间内进入该子集,最终实现渐近稳定。