作者单位:Haiping Shi (1) Xia Liu (2) (3) Yuanbiao Zhang (4) Xiaoqing Deng (5)
1. Department of Modern Business and Management, Guangdong Construction Vocational Technology Institute, Guangzhou, 510450, China 2. Oriental Science and Technology College, Hunan Agricultural University, Changsha, 410128, China 3. Science College, Hunan Agricultural University, Changsha, 410128, China 4. Packaging Engineering Institute, Jinan University, Zhuhai, 519070, China 5. School of Mathematics and Statistics, Hunan University of Commerce, Changsha, 410205, China
ISSN:1579-1505
文摘
By making use of the critical point theory, the existence of periodic solutions for fourth-order nonlinear difference equations is obtained. The proof is based on the Saddle Point Theorem in combination with variational technique. The problem is to solve the existence of periodic solutions of fourth-order nonlinear difference equations. Results obtained complement the existing one.