Brauer group of moduli spaces of PGL(r)-bundles over a curve

被引:7
|
作者
Biswas, Indranil [1 ]
Hogadi, Amit [1 ]
机构
[1] Tata Inst Fundamental Res, Sch Math, Bombay 400005, Maharashtra, India
关键词
Brauer group; Moduli stack; Gerbe; Stable bundle; PICARD GROUP; BUNDLES;
D O I
10.1016/j.aim.2010.04.020
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We compute the Brauer group of the moduli stack of stable PGL(r)-bundles on a curve X over an algebraically closed field of characteristic zero. We also show that this Brauer group of such a moduli stack coincides with the Brauer group of the smooth locus of the corresponding coarse moduli space of stable PGL(r)-bundles on X. (C) 2010 Elsevier Inc. All rights reserved.
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页码:2317 / 2331
页数:15
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