Subharmonic solutions and homoclinic orbits of second order discrete Hamiltonian systems with potential changing sign. - Xiaoqing Deng; Gong Cheng; Haiping Shi (Comput. Math. Appl., 2009)

Periodic solutions of second order discrete Hamiltonian systems with potential indefinite in sign. - Xiaoqing Deng; Haiping Shi; Xiaoliang Xie (Appl. Math. Comput., 2011)

Periodic and subharmonic solutions for fourth-order nonlinear difference equations. - Xia Liu; Yuanbiao Zhang; Haiping Shi; Xiaoqing Deng (Appl. Math. Comput., 2014)

Existence of breathers for discrete nonlinear Schrödinger equations. - Haiping Shi; Yuanbiao Zhang (Appl. Math. Lett., 2015)

Standing wave solutions for the discrete nonlinear Schrödinger equations with indefinite sign subquadratic potentials. - Haiping Shi; Yuanbiao Zhang (Appl. Math. Lett., 2016)