Finite Fields

被引:0
作者
Schwarzweller, Christoph [1 ]
机构
[1] Univ Gdansk, Inst Informat, Gdansk, Poland
来源
FORMALIZED MATHEMATICS | 2024年 / 32卷 / 01期
关键词
finite field; splitting field; Galois field;
D O I
10.2478/forma-2024-0024
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We continue the formalization of field theory in Mizar. Here we prove existence and uniqueness of finite fields by constructing the splitting field of the polynomial X(pn) -X over the prime field of a field with characteristic p. We also define the Frobenius morphism and show that the automorphisms of a field with pn elements are exactly the powers 0, . . ., n - 1 of the Frobenius morphism, that is the automorphism group is generated by the Frobenius morphism.
引用
收藏
页码:289 / 302
页数:14
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