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| POSITIVE PERIODIC SOLUTIONS OF THE FIRST- ORDER SINGULAR DISCRETE SYSTEMS |
| Ruipeng Chen,Xiaoya Li |
| (Dept. of Math., North Minzu University, Yinchuan 750021, Ningxia, PR China) |
| DOI： |
| Abstract: |
| In this paper, we study two kinds of first-order singular discrete systems. By the fixed point index theory, we investigate the existence and multiplicity of positive periodic solutions of the systems. |
| Key words: positive periodic solutions; singular discrete systems; delay; fixed point index |