Displaying similar documents to “Endomorphisms of jacobian varieties of Fermat curves”

A note on Sinnott's index formula

Kazuhiro Dohmae (1997)

Acta Arithmetica

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Let k be an (imaginary or real) abelian number field whose conductor has two distinct prime divisors. We shall construct a basis for the group C of circular units in k and compute the index of C in the group E of units in k. This result is a generalization of Theorem 3.3 in a previous paper [1].