ON THE BRAUER GROUP OF ENRIQUES SURFACES

被引：0
|
作者：
Beauville, Arnaud [1 ]
机构：
[1] Univ Nice, UMR 6621, CNRS, F-06108 Nice 2, France
来源：
MATHEMATICAL RESEARCH LETTERS | 2009年 / 16卷 / 5-6期
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D O I：
暂无
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
Let S be a complex Enriques surface (quotient of a K3 surface X by a fixed-point-free involution). The Brauer group Br(S) has a unique nonzero element. We describe its pull-back in Br(X), and show that the surfaces S for which it is trivial form a countable union of hypersurfaces in the moduli space of Enriques surfaces.
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页码：927 / 934
页数：8
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