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Difference between revisions of "Non-Abelian number field"

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An algebraic [[Number field|number field]] with a non-Abelian [[Galois group|Galois group]] over the field of rational numbers <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/n/n066/n066910/n0669101.png" />, or a field that is not normal over <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/n/n066/n066910/n0669102.png" />. Sometimes, instead of <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/n/n066/n066910/n0669103.png" />, one considers some other ground field <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/n/n066/n066910/n0669104.png" /> of algebraic numbers, and the term  "non-Abelian"  is understood to refer to the Galois group over <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/n/n066/n066910/n0669105.png" />.
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An algebraic [[Number field|number field]] with a non-Abelian [[Galois group|Galois group]] over the field of rational numbers  $  \mathbf Q $,
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or a field that is not normal over  $  \mathbf Q $.
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Sometimes, instead of  $  \mathbf Q $,
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one considers some other ground field  $  k $
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of algebraic numbers, and the term  "non-Abelian"  is understood to refer to the Galois group over  $  k $.
  
 
====Comments====
 
====Comments====
 
  
 
====References====
 
====References====
 
<table><TR><TD valign="top">[a1]</TD> <TD valign="top">  E. Weiss,  "Algebraic number theory" , McGraw-Hill  (1963)  pp. Sects. 4–9</TD></TR></table>
 
<table><TR><TD valign="top">[a1]</TD> <TD valign="top">  E. Weiss,  "Algebraic number theory" , McGraw-Hill  (1963)  pp. Sects. 4–9</TD></TR></table>

Revision as of 08:02, 6 June 2020


An algebraic number field with a non-Abelian Galois group over the field of rational numbers $ \mathbf Q $, or a field that is not normal over $ \mathbf Q $. Sometimes, instead of $ \mathbf Q $, one considers some other ground field $ k $ of algebraic numbers, and the term "non-Abelian" is understood to refer to the Galois group over $ k $.

Comments

References

[a1] E. Weiss, "Algebraic number theory" , McGraw-Hill (1963) pp. Sects. 4–9
How to Cite This Entry:
Non-Abelian number field. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Non-Abelian_number_field&oldid=13057
This article was adapted from an original article by L.V. Kuz'min (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article