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Existence of multiple positive periodic solutions for nonlinear functional difference equations |
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| Authors: | Manjun Ma Jianshe Yu |
| Institution: | a Department of Applied Mathematics, Hunan University, Changsha, Hunan 410082, People's Republic of China b Department of Physics-Mathematics, Nanhua University, Hengyang, Hunan 421001, People's Republic of China c School of Mathematics and Information Science, Guangzhou University, Guangzhou 510405, People's Republic of China |
| Abstract: | In this paper, we investigate the existence of multiple positive periodic solutions to a class of functional difference equations. We answer the open problems proposed by Y. Raffoul in Electron. J. Differential Equations 55 (2002) 1-8] and the conditions obtained improve some recent results established there. |
| Keywords: | Functional difference equation Multiple positive solutions Fixed points |
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