Poincare;
Rayleigh equation;
van der Pol equation;
limit cycle;
existence;
uniqueness;
EXISTENCE;
D O I:
10.18500/1816-9791-2021-21-2-173-181
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
New sufficient conditions for the existence and uniqueness of a periodic solution of a system of differential equations equivalent to the Rayleigh equation are obtained. In contrast to the known results, the existence proof of at least one limit cycle of the system is based on applying curves of the topographic Poincare system. The uniqueness of the limit cycle surrounding a complex unstable focus is proved by the Otrokov method.
机构:
Hangzhou Normal Univ, Sch Math, Hangzhou 31112, Peoples R ChinaHangzhou Normal Univ, Sch Math, Hangzhou 31112, Peoples R China
Yu, Xingchen
Yuan, Qigang
论文数: 0引用数: 0
h-index: 0
机构:
North China Univ Water Resources & Elect Power, Sch Math & Stat, Zhengzhou 450046, Peoples R ChinaHangzhou Normal Univ, Sch Math, Hangzhou 31112, Peoples R China
Yuan, Qigang
Cheng, Zhibo
论文数: 0引用数: 0
h-index: 0
机构:
Henan Polytech Univ, Sch Math & Informat Sci, Jiaozuo 454003, Peoples R ChinaHangzhou Normal Univ, Sch Math, Hangzhou 31112, Peoples R China