摘要
从Lyapunov稳定性理论出发,通过将有关定理改进,得到判断非线性系统的中心或焦点及估计非自治系统的吸引域的简便而有效的方法.
Based on the Lyapunov stability theory, through improving related theorem, obtain simple and effective methods of judging center or the focal point of nonlinear system and estimating the attraction territory of non-autonomous system.
出处
《河南教育学院学报（自然科学版）》
2008年第2期13-15,共3页
Journal of Henan Institute of Education(Natural Science Edition)
