Hu, Yong-Zhong Some results on singular permutation polynomial in several indeterminates over \(\mathbb Z/m\mathbb Z\). (English) Zbl 1195.11158 Far East J. Math. Sci. (FJMS) 9, No. 1, 69-76 (2003). 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 Keywords:permutation polynomial; singular point; singular polynomial; orthogonal system PDFBibTeX XMLCite \textit{Y.-Z. Hu}, Far East J. Math. Sci. (FJMS) 9, No. 1, 69--76 (2003; Zbl 1195.11158)