Articles in Scholarly Journals [Incomplete List]

1. Multiple periodic solutions for discrete Hamiltonian systems?
   Nonlinear Analysis, vol. 66, no. 7, pp. 1498–1512, 2007
2. Homoclinic orbits and subharmonics for nonlinear second order difference equations?
   Nonlinear Analysis: Theory, Methods & Applications, vol. 67, no. 6, pp. 1737–1745, 2007
3. Existence of solutions of nonlinear fourth order discrete boundary value problem†
   The Journal of Difference Equations and Applications, vol. 12, no. 5, pp. 459–466, 2006
4. On boundary value problems for a discrete generalized Emden–Fowler equation?
   Journal of Differential Equations, vol. 231, no. 1, pp. 18–31, 2006
5. Homoclinic orbits for second order self-adjoint difference equations
   Journal of Mathematical Analysis and Applications, vol. 323, no. 1, pp. 513–521, 2006
6. Periodic solutions of a discrete Hamiltonian system with a change of sign in the potential?
   Journal of Mathematical Analysis and Applications, vol. 324, no. 2, pp. 1140–1151, 2006
7. Nontrivial periodic solutions for asymptotically linear resonant difference problem?
   Journal of Mathematical Analysis and Applications, vol. 322, no. 1, pp. 477–488, 2006
8. Multiplicity Results for Periodic Solutions to Second-Order Difference Equations
   Journal of Dynamics and Differential Equations, vol. 18, no. 4, pp. 943–960, 2006
9. Boundary value problems of discrete generalized Emden-Fowler equation
   Science in China Series A: Mathematics, vol. 49, no. 10, pp. 1303–1314, 2006
10. Periodic solutions of a class of nonlinear difference equations via critical point method
    Computers & Mathematics with Applications, vol. 52, no. 12, pp. 1639–1647, 2006
11. Multiplicity results for periodic solutions to delay differential equations via critical point theory
    Journal of Differential Equations, vol. 218, no. 1, pp. 15–35, 2005
12. Disconjugacy and C-disfocality of second-order self-adjoint difference equation
    Computers & Mathematics with Applications, vol. 49, no. 5-6, pp. 933–942, 2005
13. Existence of periodic solutions for fourth-order difference equations
    Computers & Mathematics with Applications, vol. 50, no. 1-2, pp. 49–55, 2005
14. Subharmonic Solutions with Prescribed Minimal Period of a Discrete Forced Pendulum Equation
    Journal of Dynamics and Differential Equations, vol. 16, no. 2, pp. 575–586, 2004
15. Periodic solutions of higher-dimensional discrete systems
    Proceedings of the Royal Society of Edinburgh: Section A Mathematics, vol. 134, no. 05, p. 1013, 2004
16. Some problems on the global attractivity of linear nonautonomous difference equations
    Science in China Series A, vol. 46, no. 6, p. 884, 2003
17. Existence of periodic and subharmonic solutions for second-order superlinear difference equations
    Science in China Series A, vol. 46, no. 4, p. 506, 2003
18. Periodic and subharmonic solutions for superquadratic discrete Hamiltonian systems
    Nonlinear Analysis, vol. 55, no. 7-8, pp. 969–983, 2003
19. THE EXISTENCE OF PERIODIC AND SUBHARMONIC SOLUTIONS OF SUBQUADRATIC SECOND ORDER DIFFERENCE EQUATIONS
    Journal of the London Mathematical Society, vol. 68, no. 2, pp. 419–430, 2003
20. Existence of periodic solutions to second-order Hamiltonian systems with potential indefinite in sign1
    Nonlinear Analysis, vol. 51, no. 7, pp. 1273–1283, 2002
21. Applications of a Zp Index Theory to Periodic Solutions for a Class of Functional Differential Equations,
    Journal of Mathematical Analysis and Applications, vol. 257, no. 1, pp. 189–205, 2001
22. PERIODIC SOLUTIONS OF SECOND ORDER SELF-ADJOINT DIFFERENCE EQUATIONS
    Journal of the London Mathematical Society, vol. 71, no. 1, pp. 146–160, 1999