References & Citations
Mathematics > Number Theory
Title: On the Galois module structure of minus class groups
(Submitted on 18 Apr 2024)
Abstract: The main object of this paper is the minus class groups associated to CM-fields as Galois modules. In a previous article of the authors, we introduced a notion of equivalence for modules and determined the equivalence classes of the minus class groups. In this paper, we show a concrete application of this result. We also study how large a proportion of equivalence classes can be realized as classes of minus class groups.
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