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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]] with a non-Abelian [[Galois group]] over the field of rational numbers  $\QQ$,
====Comments====
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or a field that is not normal over  $ \QQ$.
 
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Sometimes, instead of $\QQ$, 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 $k$.
  
 
====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>
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<table>
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<TR><TD valign="top">[a1]</TD> <TD valign="top">  E. Weiss,  "Algebraic number theory" , McGraw-Hill  (1963)  pp. Sects. 4–9</TD></TR>
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</table>

Latest revision as of 15:13, 10 April 2023


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

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