Z/mZ上的多元奇异置换多项式

SINGULAR PERMUTATION POLYNOMIAL IN SEVERAL INDETERMINATES OVER Z/mZ

研究了一类模p的n(n ≥ 3)元奇异置换多项式 ,得到了它们是模 pl 置换多项式的充分条件 ,并给出了一个例子 ,说明必要性不成立 .

The author studies a class of singular permutation polynomials in n(n≥3) indeterminates modulo p, gives a sufficient condition for them to be permutation polynomials modulo p l(l>1). By a counter example the author shows that the condition is not necessary.