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ON THE IDEAL CLASS GROUP OF CERTAIN QUADRATIC FIELDS
Published online by Cambridge University Press: 25 August 2010
Abstract
Let n(≥ 3) be an odd integer. Let k:= be the imaginary quadratic field and k′:= the real quadratic field. In this paper, we prove that the class number of k is divisible by 3 unconditionally, and the class number of k′ is divisible by 3 if n(≥ 9) is divisible by 3. Moreover, we prove that the 3-rank of the ideal class group of k is at least 2 if n(≥ 9) is divisible by 3.
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- Copyright © Glasgow Mathematical Journal Trust 2010
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