机构:
Certificat Res Ctr, Moscow, RussiaCertificat Res Ctr, Moscow, Russia
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).