Wei, Guoqiang; Chen, Guowei Bifurcation of cubic integrable system under cubic perturbation. (English) Zbl 1127.34322 Ann. Differ. Equations 22, No. 4, 573-581 (2006). Reviewer: Ricardo Riaza (Madrid) MSC: 34C23 34C05 34C37 PDFBibTeX XMLCite \textit{G. Wei} and \textit{G. Chen}, Ann. Differ. Equations 22, No. 4, 573--581 (2006; Zbl 1127.34322)
Chen, Guowei; Wu, Yongbin; Yang, Xinan The number of limit cycles for a class of quintic Hamiltonian systems under quintic perturbations. (English) Zbl 1017.34028 J. Aust. Math. Soc. 73, No. 1, 37-53 (2002). Reviewer: Ladislav Adamec (Brno) MSC: 34C07 37C10 34C23 PDFBibTeX XMLCite \textit{G. Chen} et al., J. Aust. Math. Soc. 73, No. 1, 37--53 (2002; Zbl 1017.34028) Full Text: DOI
Yang, Xinan; Chen, Guowei; Wu, Yongbin Limit cycles of Kukles system with two fine foci. (English) Zbl 0964.34025 Bates, Peter W. (ed.) et al., Differential equations and computational simulations. Proceedings of the international conference, Chengdu, China, June 13-18, 1999. Singapore: World Scientific. 406-409 (2000). Reviewer: Armengol Gasull (Bellaterra, Barcelona) MSC: 34C07 34C23 34C05 34C27 PDFBibTeX XMLCite \textit{X. Yang} et al., in: Differential equations and computational simulations. Proceedings of the international conference, Chengdu, China, June 13--18, 1999. Singapore: World Scientific. 406--409 (2000; Zbl 0964.34025)
Wu, Yongbin; Chen, Guowei; Yang, Xinan Kukles system with two fine foci. (English) Zbl 0966.34027 Ann. Differ. Equations 15, No. 4, 422-437 (1999). Reviewer: V.A.Gaiko (Minsk) MSC: 34C05 34C07 PDFBibTeX XMLCite \textit{Y. Wu} et al., Ann. Differ. Equations 15, No. 4, 422--437 (1999; Zbl 0966.34027)
Guo, Lin; Chen, Guowei Limit cycles of cubic Van der Pol equation with one finite critical point. (English) Zbl 0883.34038 Ann. Differ. Equations 13, No. 2, 125-139 (1997). Reviewer: Ding Tongren (Beijing) MSC: 34C05 PDFBibTeX XMLCite \textit{L. Guo} and \textit{G. Chen}, Ann. Differ. Equations 13, No. 2, 125--139 (1997; Zbl 0883.34038)
Chen, Guowei The \(E^ 1_ 3\) system with two invariant conjugate imaginary lines. (English) Zbl 0745.34021 Ann. Differ. Equations 7, No. 4, 385-401 (1991). Reviewer: N.L.Maria (Turlock) MSC: 34C05 PDFBibTeX XMLCite \textit{G. Chen}, Ann. Differ. Equations 7, No. 4, 385--401 (1991; Zbl 0745.34021)
Chen, Guowei A bounded \(E^ 1_ 3\) system and its limit cycle. (English) Zbl 0691.34022 Ann. Differ. Equations 5, No. 3, 253-261 (1989). MSC: 34C05 PDFBibTeX XMLCite \textit{G. Chen}, Ann. Differ. Equations 5, No. 3, 253--261 (1989; Zbl 0691.34022)