[1] MARTIN BOHNER,ALLAN C PETERSON.Dynamic Equations on Time Scales:An Introduction with Applications[M].Boston:Birkhuser,2001.[2] MARTIN BOHNER,PETERSON A.Advances in Dynamic Equations on Time Scales[M].Boston:Birkhuser,2003.[3] LI Wantong,SUN Hongrui.Multiple Positive Solutions for Nonlinear Dynamic Systems on a Measure Chain[J].J. Comput. Appl. Math.,2004,162:421-430.[4] SUN Jianping,LI Wantong.Positive Solution for System of Nonlinear First-Order PBVPs on Time Scales[J].Nonlinear Anal.,2005,62:131-139.[5] SUN Jianping,LI Wantong.Existence of Positive Solutions to Semipositone Dirichlet BVPs on Time Scales[J].Dynammics Systems Applications,2007,16:571-578.[6] SU Youhui,LI Wantong.Triple Positive Solutions of m-Point BVPs for p-Laplacian Dynamic Equations on Time Scales[J].Nonlinear Anal.,2008,69:3 811-3 820.[7] RYNNE B P.L2 Spaces and Boundary Value Problems on Time-Scales[J].J. Math. Anal. Appl.,2007,328:1 217-1 236.[8] ZHANG Hongtao,LI Yongkun.Existence of Positive Periodic Solutions for Functional Differential Equations with Impulse Effects on Time Scales[J].Communications in Nonlinear Science and Numerical Simulation,2009,14(1):19-26.[9] SU Youhui,LI Wantong.Periodic Solution of Second-Order Hamiltonian Systems with a Change Sign Potential on Time Scales[J].Discrete Dynamics in Nature and Society,2009,13:1-17.[10] SU Youhui,LI Wantong.Periodic Solution for Non-Autonomous Second Order Hamiltonian Systems on Time Scales[J].Dynamic Systems and Applications,2009,18:621-636.[11] SU Youhui,FENG Zhaosheng.A Nonautonomous Hamiltonian System on Time Scales[J].Nonlinear Anal.,2012,75(10):4 126-4 136.[12] ZHOU Jianwen,LI Yongkun.Variational Approach to a Class of Second Order Hamiltonian Systems on Time Scales[J].Acta. Applicandae Mathematicae,2012,117(1):47-69.[13] MAWHIN J,WILLEM M.Critical Point Theory and Hamiltonian Systems[M].New York:Springer-Verlag,1989.[14] LI Yongkun,ZHOU Jianwen.Existence of Solutions for a Class of Damped Vibration Problems on Time Scales[J].Advances in Difference Equations,2010,27:1-27. |