Galois extension field - Galois extension field

Japanese: ガロア拡大体 - がろあかくだいたい
Galois extension field - Galois extension field

...There are applications of these results, or generalizations to Galois theory of rings, but we will focus on the most basic case of number fields.
[Definition]
For a field K , L of complex numbers (a set that includes all rational numbers and in which arithmetic operations are possible between elements except for division by zero), L is said to be a Galois extension field (or a normal extension field) of K if the following (1) to (3) are satisfied. (1) L is an extension field of K.

*Some of the terminology explanations that mention "Galois extension fields" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

… これらの結果の応用,あるいは環のガロア理論への一般化などがあるが,最も基本的な数体の場合を中心にして説明する。
[定義]
 複素数からなるある体(有理数全体を含み,その元の間で四則演算が0で割ることを除いて可能な集合)K,Lについて,LKのガロア拡大体(または,正規拡大体)であるとは,次の(1)~(3)が満たされるときにいう。 (1)LKの拡大体。…

※「ガロア拡大体」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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