学术论文: |
[1] JinZhang,XueYang. Existence of rotating-periodic solutions for nonlinear second order vector differential equations.J. Inequal. Appl.2020 (2020),no. 22, 14pp. [2]JinZhang.A relationship between λ-symmetries and first integrals for ordinary differential equations.Math. Methods Appl. Sci.42(2019),no. 18,6139-6154. [3]JinZhang,MingCai,BochaoChen,HuiWei. Homotopy series solutions to time-space fractional coupled systems.Discrete Dyn. Nat. Soc.2017,ID 3540364, 19 pp. [4]JinZhang,XiangyueWang. Lie symmetry analysis and group-invariant solutions for an improved Boussinesq equation.J. Jilin Univ. Sci.53(2015),no. 3,359-362. [5]YixianGao,YongLi,JinZhang.Invariant tori of nonlinear Schrödinger equation.J. Differential Equations246(2009),no. 8,3296-3331. [6]JinZhang,YongLi. Symmetries and first integrals of differential equations.Acta Appl. Math.103(2008),no. 2,147-159. [7]JinZhang,Yihedalai,ShuguanJi. A necessary condition for existence of generalized symmetry of ordinary differential equations.J. Jilin Univ. Sci.45(2007),no. 3,393-395. [8]WenzhuangZhu,JunWan,JinZhang.Periodic solution of a class of second-order differential equations.J. Jilin Univ. Sci.42(2004),no. 1,61-63. |