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On some arithmetic properties of Siegel functions (II)

  • Ho Yun Jung EMAIL logo , Ja Kyung Koo and Dong Hwa Shin
Published/Copyright: September 9, 2011

Abstract.

Let K be an imaginary quadratic field of discriminant . We deal with problems of constructing normal bases between abelian extensions of K by making use of singular values of Siegel functions. First, we find normal bases of ring class fields of orders of bounded conductors depending on dK over K by using a criterion deduced from the Frobenius determinant relation. Next, denoting by the ray class field modulo N of K for an integer we consider the field extension for a prime and a positive integer m relatively prime to p and then find normal bases of all intermediate fields over by utilizing Kawamoto's arguments. We further investigate certain Galois module structure of the field extension with , which would be an extension of Komatsu's work.

Received: 2011-06-07
Revised: 2011-08-18
Published Online: 2011-09-09
Published in Print: 2014-01-01

© 2014 by Walter de Gruyter Berlin Boston

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