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作者单位:Xia Liu (1) Yuanbiao Zhang (2) Haiping Shi (3)
1. Oriental Science and Technology College, Hunan Agricultural University, Changsha, 410128, China 2. Packaging Engineering Institute, Jinan University, Zhuhai, 519070, China 3. Basic Courses Department, Guangdong Construction Vocational Technology Institute, Guangzhou, 510450, China
ISSN:1865-2085
文摘
By using of the critical point method, the existence of periodic solutions for fourth-order nonlinear functional difference equations is obtained. The main approaches used in our paper are variational techniques and the Saddle Point Theorem. The problem is to solve the existence of periodic solutions of fourth-order nonlinear functional difference equations. Results obtained generalize and complement the existing one.