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MAA

Seminar

Dense subfields of henselian fields, integer parts, and nasty valuations on rational function fields

Kuhlmann, F-V (Saskatchewan)
Thursday 16 June 2005, 14:00-15:00

Seminar Room 2, Newton Institute Gatehouse

Abstract

We show that every henselian field of residue characteristic 0 admits a dense subfield. Certain special cases allow subfields with very interesting additional properties. We also discuss the existence and size of integer parts and of complements to valuation rings.

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