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Some results on singular permutation polynomial in several indeterminates over \(\mathbb Z/m\mathbb Z\). (English) Zbl 1195.11158

Summary: This paper is devoted to the study a class of singular permutation polynomials modulo \(p\) in several variables, gives a sufficient condition for them to be permutation polynomials modulo \(p^l\) \((l>1)\). Using a counterexample we show that the condition is not necessary.

MSC:

11T06 Polynomials over finite fields
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