Yang, Jihua; Zhang, Erli On the number of limit cycles for a class of piecewise smooth Hamiltonian systems with discontinuous perturbations. (English) Zbl 1472.34026 Nonlinear Anal., Real World Appl. 52, Article ID 103046, 10 p. (2020). Reviewer: Valery A. Gaiko (Minsk) MSC: 34A36 34E10 34C05 37J40 34C07 PDFBibTeX XMLCite \textit{J. Yang} and \textit{E. Zhang}, Nonlinear Anal., Real World Appl. 52, Article ID 103046, 10 p. (2020; Zbl 1472.34026) Full Text: DOI
Li, Huimin; Zhang, Erli The cyclicity of period annuli of a Hamilton system with nilpotent saddle points. (Chinese. English summary) Zbl 1449.34109 J. Sichuan Norm. Univ., Nat. Sci. 42, No. 5, 598-604 (2019). MSC: 34C07 34C05 34E10 34C23 PDFBibTeX XMLCite \textit{H. Li} and \textit{E. Zhang}, J. Sichuan Norm. Univ., Nat. Sci. 42, No. 5, 598--604 (2019; Zbl 1449.34109) Full Text: DOI
Yang, Jihua; Zhang, Erli Zeros of abelian integral for a kind of Hamiltonian systems. (Chinese. English summary) Zbl 1449.34111 Acta Math. Sci., Ser. A, Chin. Ed. 39, No. 5, 1025-1032 (2019). MSC: 34C08 34C07 PDFBibTeX XMLCite \textit{J. Yang} and \textit{E. Zhang}, Acta Math. Sci., Ser. A, Chin. Ed. 39, No. 5, 1025--1032 (2019; Zbl 1449.34111)
Yang, Jihua; Zhang, Erli; Li, Sanjie; Liu, Mei The number of zeros of abelian integrals for near-Hamilton system of degree three with a butterfly. (Chinese. English summary) Zbl 1413.34137 Acta Math. Sin., Chin. Ser. 61, No. 1, 19-26 (2018). MSC: 34C08 34E10 PDFBibTeX XMLCite \textit{J. Yang} et al., Acta Math. Sin., Chin. Ser. 61, No. 1, 19--26 (2018; Zbl 1413.34137)
Zhang, Erli; Xing, Yuqing Limit cycle bifurcations for a kind of Hamilton systems of degree three. (Chinese. English summary) Zbl 1399.37033 Acta Math. Sci., Ser. A, Chin. Ed. 37, No. 5, 825-833 (2017). MSC: 37J20 37G15 34C07 PDFBibTeX XMLCite \textit{E. Zhang} and \textit{Y. Xing}, Acta Math. Sci., Ser. A, Chin. Ed. 37, No. 5, 825--833 (2017; Zbl 1399.37033)
Yang, Jihua; Zhang, Erli; Liu, Mei The cyclicity of period annuli of a class of quartic Hamiltonian systems. (Chinese. English summary) Zbl 1389.37038 Adv. Math., Beijing 46, No. 2, 243-251 (2017). MSC: 37J45 34C05 34C07 34D10 PDFBibTeX XMLCite \textit{J. Yang} et al., Adv. Math., Beijing 46, No. 2, 243--251 (2017; Zbl 1389.37038)