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Open question on lower order iterative roots for PM functions |
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| Authors: | Liu Liu Weinian Zhang |
| Affiliation: | 1. Department of Mathematics, Southwest Jiaotong University, Chengdu, P.R. China.;2. Yangtze Center of Mathematics and Department of Mathematics, Sichuan University, Chengdu, P.R. China. |
| Abstract: | |
| Keywords: | Iterative root PM function nonmonotonicity height absorbing lap |