منابع مشابه
Equivalent Birational Embeddings Ii: Divisors
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For a smooth and geometrically irreducible variety X over a field k of characteristic 0, the quotient of the absolute Galois group Gk(X) by the commutator subgroup of G k̄(X) projects onto Gk. We investigate the sections of this projection. We show that such sections correspond to “infinite divisions” of the elementary obstruction of Colliot-Thélène and Sansuc. If k is a number field and the Tat...
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ژورنال
عنوان ژورنال: Bulletin of the London Mathematical Society
سال: 2009
ISSN: 0024-6093
DOI: 10.1112/blms/bdn107