On determining the quadratic subfields of -extensions of complex quadratic fields
Joseph E. Carroll (1975)
Compositio Mathematica
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Joseph E. Carroll (1975)
Compositio Mathematica
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Alan Candiotti (1974)
Compositio Mathematica
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Ken Yamamura (1997)
Journal de théorie des nombres de Bordeaux
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We determine the structures of the Galois groups Gal of the maximal unramified extensions of imaginary quadratic number fields of conductors under the Generalized Riemann Hypothesis). For all such , is , the Hilbert class field of , the second Hilbert class field of , or the third Hilbert class field of . The use of Odlyzko’s discriminant bounds and information on the structure of class groups obtained by using the action of Galois groups on class groups is essential. We...
Stéphane Louboutin (1997)
Acta Arithmetica
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Daniel Shanks, Peter Weinberger (1972)
Acta Arithmetica
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Michailov, Ivo (2005)
Serdica Mathematical Journal
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2000 Mathematics Subject Classification: 12F12 We describe several types of Galois extensions having as Galois group the quaternion group Q16 of order 16. This work is partially supported by project of Shumen University.
Young-Ho Park, Soun-Hi Kwon (1998)
Acta Arithmetica
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David Gay (1979)
Acta Arithmetica
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Ken Yamamura (2001)
Journal de théorie des nombres de Bordeaux
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In the previous paper [15], we determined the structure of the Galois groups of the maximal unramified extensions of imaginary quadratic number fields of conductors under the Generalized Riemann Hypothesis (GRH) except for 23 fields (these are of conductors ) and give a table of . We update the table (under GRH). For 19 exceptional fields of them, we determine . In particular, for , we obtain , the fourth Hilbert class field of . This is the first example of a number...
J. E. Carroll, H. Kisilevsky (1976)
Compositio Mathematica
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