Number theory of algebraic number fields

Japanese: 代数体の整数論 - だいすうたいのせいすうろん
Number theory of algebraic number fields
A complex number that can be the root of an algebraic equation with rational coefficients is called an algebraic number, and the degree of the irreducible equation with rational coefficients that it satisfies is called the degree of that algebraic number. For example, is a quadratic algebraic number. Let us denote all rational numbers by Q. A field obtained by adding a finite number of algebraic numbers to Q is called a finite degree algebraic number field, or simply an algebraic number field. An algebraic number field is given in the form Q (θ) by adding an appropriate algebraic number θ. In such algebraic number fields, just as in Q , integers and relationships such as divisibility between them are defined, and number theory can be considered.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
有理数を係数とする代数方程式の根となりうる複素数を代数的数といい,その数が満たす有理数係数の既約な方程式の次数をその代数的数の次数という。例えば,は二次の代数的数である。有理数全体をQで表すことにする。有限個の代数的数をQに添加して得られる体を有限次代数体,または単に代数体という。代数体は,適当な1個の代数的数θを添加したQ(θ)の形で与えられる。このような代数体においてもQにおけると同様,整数やその間の整除という関係が定められ,整数論を考えることができる。

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

<<:  Algebraic number - daisuutekisuu (English spelling) algebraic number

>>:  Algebraic system

Recommend

Weeper

… Hoods and veils have been used since the Middle...

Kokura weaving

The name of a cotton fabric originally woven in t...

Ken Domon

Photographer. Born in Yamagata Prefecture. Active...

Clematis stans (English spelling)

…[Michio Tamura]. … *Some of the terminology expl...

International Maritime Carriage of Goods Law

This law was enacted in 1957 (Showa 32) to ratify...

Renan - Joseph Ernest Renan

French thinker, religious historian, and philolog...

Criquet

…This is one of the few cases in Europe and Ameri...

Asahina no Tsurigitsune - Asahina no Tsurigitsune

...What remains today is the Tokiwazu "Wakag...

Rusutsu [village] - Rusutsu

A village in Abuta County, Shiribeshi Subprefectur...

Subdominant chord - Kazokuwaon

A triad with the subdominant of the scale as the l...

Prohibition of ex post facto laws

This principle states that a newly enacted law (e...

Rocky mountain

〘Noun〙 (meaning a temporary mountain) refers to an...

Meiwa 5 momme silver

The first fixed-price silver coin of the Edo Shogu...

Ken Ishikawa

Born: April 29, 1891 in Aichi [Died] July 11, 1969...

Djeser (English spelling)

The second king of the Third Dynasty of Ancient Eg...