Polynomial functions and permutation polynomials over some finite commutative rings |
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| Authors: | Qifan Zhang |
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| Institution: | College of Mathematics, Sichuan University, Chengdu 610064, China |
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| Abstract: | We extend some classical results on polynomial functions  . We prove all results in algebraic methods avoiding any combinatorial calculation. As applications of our methods, we obtain some interesting new results on permutation polynomials in several variables over some finite commutative rings. |
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| Keywords: | Polynomial function Permutation polynomial Witt polynomial Teichmü ller element |
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