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On Unramified Separable Abelian p-Extensions of Function Fields I

Published online by Cambridge University Press:  22 January 2016

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Let k be an algebraically closed field of characteristic p>0. Let K/k be a function field of one variable and L/K be an unramified separable abelian extension of degree pr over K. The galois automorphisms ε1, …, εpr of L/K are naturally extended to automorphisms η(ε1), … , η(εpr) of the jacobian variety JL of L/k. If we take a svstem of p-adic coordinates on JL , we get a representation {Mp(η(εv))} of the galois group G(L/K) of L/K over p-adic integers.

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Research Article
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Copyright © Editorial Board of Nagoya Mathematical Journal 1959