PIECEWISE-AFFINE PERMUTATIONS OF FINITE FIELDS

被引:4
作者
Bugrov, A. D. [1 ]
机构
[1] Certificat Res Ctr, Moscow, Russia
来源
PRIKLADNAYA DISKRETNAYA MATEMATIKA | 2015年 / 30卷 / 04期
关键词
finite field; piecewise-linear permutations; piecewise-affine permutations; linear characteristic of permutations;
D O I
10.17223/20710410/30/1
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Piecewise-affine permutations (p.-a. p.) are defined on any field GF(q). They are a generalization of piecewise-linear permutations firstly introduced by A.B. Evans. Here some estimates for linear characteristics of p.-a. p. on GF(q) are given. In some cases, their exact values are pointed. Polynomials representing p.-a. p. are described. Under some conditions on root q - 1, it is proved that piecewise-affine permutations form the full symmetric group of GF(q).
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页码:5 / 23
页数:19
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