Periodic sinks and periodic saddle orbits induced by heteroclinic bifurcation in three-dimensional piecewise linear systems with two zones

被引:7
作者
Wang, Lei [1 ]
Li, Qingdu [2 ]
Yang, Xiao-Song [3 ]
机构
[1] Hefei Univ, Sch Artificial Intelligence & Big Data, Sino German Inst Appl Math, Hefei 230601, Peoples R China
[2] Univ Shanghai Sci & Technol, Machine Intelligence Inst, Shanghai 200093, Peoples R China
[3] Huazhong Univ Sci & Technol, Sch Math & Stat, Wuhan 430074, Peoples R China
基金
中国国家自然科学基金;
关键词
Periodic orbits; Bifurcation; Stability; Periodic sinks; Periodic saddle orbits; Heteroclinic loops; Piecewise linear systems; GENERALIZED HOPF-BIFURCATION; LIMIT-CYCLE BIFURCATIONS; DIFFERENTIAL-EQUATIONS; HOMOCLINIC LOOP; ODE SYSTEMS; EXISTENCE; DYNAMICS; APPLICABILITY; UNIQUENESS; PROXIMITY;
D O I
10.1016/j.amc.2021.126200
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
For general three-dimensional piecewise linear systems, some explicit sufficient conditions are achieved for the existence of a heteroclinic loop connecting a saddle-focus and a saddle with purely real eigenvalues. Furthermore, certain sufficient conditions are obtained for the existence and number of periodic orbits induced by the heteroclinic bifurcation, through close analysis of the fixed points of the parameterized Poincare map constructed along the hereroclinic loop. It turns out that the number can be zero, one, finite number or countable infinity, as the case may be. Some sufficient conditions are also acquired that guarantee these periodic orbits to be periodic sinks or periodic saddle orbits, respectively, and the main results are illustrated lastly by some examples. (C) 2021 Elsevier Inc. All rights reserved.
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页数:21
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