翻訳と辞書
Words near each other
・ Artistic Creation
・ Artistic cycling
・ Artistic depictions of the Bangladesh Liberation War
・ Artistic depictions of the Bengali Language Movement
・ Artistic depictions of the partition of India
・ Artin Madoyan
・ Artin Penik
・ Artin Poturlyan
・ Artin reciprocity law
・ Artin transfer (group theory)
・ Artin's conjecture on primitive roots
・ Artine Artinian
・ Artines
・ Artington
・ Artinian
Artinian ideal
・ Artinian module
・ Artinian ring
・ Artinite
・ Artins
・ ArtInsights
・ Artinskian
・ Artinsky District
・ Artin–Hasse exponential
・ Artin–Mazur zeta function
・ Artin–Rees lemma
・ Artin–Schreier curve
・ Artin–Schreier theory
・ Artin–Tate lemma
・ Artin–Verdier duality


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Artinian ideal : ウィキペディア英語版
Artinian ideal
In abstract algebra, an Artinian ideal, named after Emil Artin, is encountered in ring theory, in particular, with polynomial rings.
Given a polynomial ring ''R'' = ''k''() where ''k'' is some field, an Artinian ideal is an ideal ''I'' in ''R'' for which the Krull dimension of the quotient ring ''R''/''I'' is 0. Also, less precisely, one can think of an Artinian ideal as one that has at least each indeterminate in ''R'' raised to a power greater than 0 as a generator.
If an ideal is not Artinian, one can take the Artinian closure of it as follows. First, take the least common multiple of the generators of the ideal. Second, add to the generating set of the ideal each indeterminate of the LCM with its power increased by 1 if the power is not 0 to begin with. An example is below.
==Examples==
Let R = k(), and let I = (x^2,y^5,z^4), \; J = (x^3, y^2, z^6, x^2yz^4, yz^3) and \displaystyle. Here, \displaystyle and \displaystyle are Artinian ideals, but \displaystyle is not because in \displaystyle, the indeterminate \displaystyle does not appear alone to a power as a generator.
To take the Artinian closure of \displaystyle, \displaystyle, which is \displaystyle. Then, we add the generators \displaystyle, and \displaystyle to \displaystyle, and reduce. Thus, we have \displaystyle{\hat{K}} = (x^3, y^4, z^8, x^2z^7) which is Artinian.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Artinian ideal」の詳細全文を読む



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.