华东师范大学学报（自然科学版）Issue(3)：44-53,10.DOI:10.3969/j.issn.1000-5641.2011.03.007
一类非光滑Liénard系统的极限环研究
Study of limit cycles for some non-smooth Liénard systems
摘要
Abstract
Algebraic method was used to study the Hopf cyclicity of non-smooth Liénard systems on the plain. Some new formulas for computing focus values were presented. Based on the formulas, the number of limit cycles bifurcating from some non-smooth Liénard systems was obtained. The results improve the known results.关键词
Liénard系统/非光滑/极限环/Hopf环性数Key words
Liénard systems/ non-smooth/ limit cycle/ Hopf cyclicity分类
数理科学引用本文复制引用
杨璐,刘霞,邢业朋..一类非光滑Liénard系统的极限环研究[J].华东师范大学学报（自然科学版）,2011,(3):44-53,10.基金项目
国家自然科学基金(10971139),上海市教委科技创新项目(10YZ72) （10971139）
