Projective Group Structures as Absolute Galois Structures
نویسندگان
چکیده
We prove: A proper profinite group structure G is projective if and only if G is the absolute Galois group structure of a proper field-valuation structure with block approximation. MR Classification: 12E30 Directory: \Jarden\Diary\HJPa 30 April, 2008 * Research supported by the Minkowski Center for Geometry at Tel Aviv University, established by the Minerva Foundation. ** Research partially done at the Max-Planck-Institute for Mathematic in Bonn.
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THE ABSOLUTE GALOIS GROUP OF A PSEUDO p-ADICALLY CLOSED FIELD
Part A. Γ-structures . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. Definition of Γ-structures . . . . . . . . . . . . . . . . . . . . . . 5 2. Basic properties of Γ-structures . . . . . . . . . . . . . . . . . . . 9 3. The Γ-structure Γe,m . . . . . . . . . . . . . . . . . . . . . . . 14 4. Γ-projective groups . . . . . . . . . . . . . . . . . . . . . . . . 16 5. Projective Γ-structu...
متن کامل2 4 Se p 20 02 PROJECTIVE GROUP STRUCTURES AS ABSOLUTE GALOIS STRUCTURES WITH BLOCK APPROXIMATION
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