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Embeddings of function fields into ample fields

โœ Scribed by Arno Fehm


Publisher
Springer
Year
2010
Tongue
English
Weight
174 KB
Volume
134
Category
Article
ISSN
0025-2611

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We study the level of nonformally real function fields of surfaces over number fields and show that it is at most 4 for a large class of surfaces. ๏ฃฉ 2002 Elsevier Science (USA) The level of a field F is the least integer n such that -1 is expressible as a sum of n squares in F. If -1 is not a sum o