在无闭轨Lienard系统完整拓扑分类的基础上,证明了20种非Q轨线结构的实现性,并给出每一种拓扑结构具体实现的充分条件.
Basing on the known orbit classification of Lienard systems without closed orbit,this paper prove the realization of the 20 kinds of non-Q structures and give the sufficient conditions of every realization.