一类多项式系统极限环存在的充要条件
Necessary and Sufficient Conditions of Existence and Uniqueness of Limit Cycles for a Polynomial System作者机构:DepartmentofAppliedMathematicsBeijingInstituteofTechnologyBeijing100081 DepartmentofMathematicsShenyangNormalUniversityShenyang110034
出 版 物:《Northeastern Mathematical Journal》 (东北数学(英文版))
年 卷 期:2004年第20卷第1期
页 面:13-22页
核心收录:
学科分类:07[理学] 070104[理学-应用数学] 0701[理学-数学]
主 题:polynorial system limit cycle existence and uniqueness
摘 要:In this paper, the following polynomial system is discussed: dx/dt=y[1+B(x)],dy/dt=(-x^α+δy+α1x^2α+α2x^αy+a5x^2αy)A(1+C(x)].And the necessary and sufficient conditions of existence and uniqueness of limit cycles are obtained.