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Capitulation, ambiguous classes and the cohomology of the units

By Cristian D. Gonzalez-Aviles

Abstract

This paper presents results on both the kernel and cokernel of the S-capitulation map C_{F,S}\ra C_{K,S}^{G} for arbitrary finite Galois extensions K/F (with Galois group G) and arbitrary finite sets of primes S of F (assumed to contain the archimedean primes in the number field case)Comment: Footnote added to statement of Theorem 4.1, and other minor changes. 20 page

Topics: Mathematics - Number Theory, 11R29, 11R27, 11R34
Year: 2006
OAI identifier: oai:arXiv.org:math/0605586

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