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jmdict 2850334 Active (id: 2145825)
導手
どうしゅ
1. [n] {mathematics}
▶ conductor (class field theory)



History:
2. A 2021-09-03 14:30:50  Robin Scott <...address hidden...>
  Comments:
The Wikipedia title looks OK to me.
  Diff:
@@ -13 +13 @@
-<gloss>conductor</gloss>
+<gloss>conductor (class field theory)</gloss>
1. A* 2021-09-02 03:07:35  Jim Breen <...address hidden...>
  Refs:
https://ja.wikipedia.org/wiki/導手 - 代数的整数論で、局所体や大域体の有限次アーベル拡大の導手(conductor)は、拡大の分岐を定量的に測るものである。導手の定義はアルティン写像に関連がある。 
https://en.wikipedia.org/wiki/Conductor_(class_field_theory) - In algebraic number theory, the conductor of a finite abelian extension of local or global fields provides a quantitative measure of the ramification in the extension. The definition of the conductor is related to the Artin map. 
https://hiramatu-hifuka.com/onyak/kotoba-1/sugaku.html -  reading
  Comments:
Improvements on the gloss?

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