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RayClassFieldAuto

Given the output of RayClassField, this function computes a primitive element for the Ray Class Field togther with the automorphisms.

Syntax:

L := RayClassFieldAuto(c);

list
  L  
containing O and a list of automorphisms
list
  c  
output of RayClassField

See also:  RayClassField

Description:

Starting with the data computed by RayClassField, this function first computes a primitive element for O/o. Next all the automorphisms of O/o are computed, together with information allowing one to use the Artin isomorphism. If automorphisms of the base field ( o) are known (prior to the call of RayClassField), and if they extend to O/Q they to are computed.


Example:

We will consider various extensions of Q(\sqrt{10}) to demonstrate some effects and possibilities:


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