Bifurcation of limit cycles of the nongeneric quadratic reversible system with discontinuous perturbations

• 来源期刊: 中国科学：数学（英文版）
• 年，卷（期）: 2020,（5）
• 页码范围: 873-886
• 页数: 14页
• 语种: 英文

摘要

By using the Picard-Fuchs equation and the property of the Chebyshev space to the discontinuous differential system,we obtain an upper bound of the number of limit cycles for the nongeneric quadratic reversible system when it is perturbed inside all discontinuous polynomials with degree n.