Remarks on unit indices of imaginary abelian number fields II |
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| Authors: | Mikihito Hirabayashi Ken-ichi Yoshino |
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| Affiliation: | (1) Kanazawa Institute of Technology, 7-1, Ogigaoka, Nonoichi-machi, 921 Ishikawa, Japan;(2) Kanazawa Medical University, Uchinada-machi, Kahoku-gun, 920-02 Ishikawa, Japan |
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| Abstract: | ![]()
Satz 41 in Hasse's monograph [4] is modified because of the incorrectness of Satz 29. We investigate unit indices of imaginary abelian number fields of type (2,2) and (2,2, 2), some of which give counterexamples to Satz 41. We moreover give a relation between unit indices of certain imaginary fields of type (2,22) and those of their real cyclic subfields. |
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