THE HILBERT PAIRING FOR FORMAL GROUPS OVER Σ-RINGS

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Abstract

In the paper, formal groups over the rings of integers of σ-fields are studied. These fields were constructed by the first author in a previous paper. They are a generalization of the inertia field of a classical local field to an arbitrary complete discrete valuation field of characteristic zero. An analog of Honda’s theory for such formal groups is constructed. The arithmetic of the group of points in an extension of a σ-field that contains sufficiently many torsion points is studied. Using the classification of formal groups and the arithmetic results obtained, an explicit formula for the Hilbert pairing for formal groups over σ-fields is proved. Bibliography: 16 titles. © 2006 Springer Science+Business Media, Inc.
Original languageEnglish
Pages (from-to)2445-2476
JournalJournal of Mathematical Sciences
Issue number6
StatePublished - 2006
Externally publishedYes

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