Elliptic Units in Function Fields
In [R], Robert uses modular functions to construct units in the class fields H of an imaginary quadratic number field F. In case H/F has prime power conductor, he computes the index of these “elliptic units” in the full unit group of H and finds that, up to trivial factors, the index is the class number of H. He therefore refers to his results on indices as class number formulas.
KeywordsTate Rosen Fermat
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