Singularities on the 2-dimensional moduli spaces of stable sheaves on K3 surfaces

被引:7
作者
Onishi, N [1 ]
Yoshioka, K [1 ]
机构
[1] Kobe Univ, Fac Sci, Dept Math, Kobe, Hyogo 657, Japan
关键词
K3; surface; moduli of vector bundles; singularities;
D O I
10.1142/S0129167X03002022
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We consider the singuralities of 2-dimensional moduli spaces of semi-stable sheaves on k3 surfaces. We show that the moduli space is normal, in particular the siguralities are rational double points. We also describe the exceptional locus on the resolution in terms of exceptional sheaves.
引用
收藏
页码:837 / 864
页数:28
相关论文
共 19 条
[1]  
Abe T, 2000, MATH RES LETT, V7, P463
[2]  
Ellingsrud G, 1995, J REINE ANGEW MATH, V467, P1
[3]  
Ito Y., 1999, London Math. Soc. Lecture Note Ser., V264, P151
[4]   MODULI OF REPRESENTATIONS OF FINITE-DIMENSIONAL ALGEBRAS [J].
KING, AD .
QUARTERLY JOURNAL OF MATHEMATICS, 1994, 45 (180) :515-530
[5]  
Li J, 1997, COLLECTION OF PAPERS ON GEOMETRY, ANALYSIS AND MATHEMATICAL PHYSICS, P98
[6]   Mumford-Thaddeus principle on the moduli space of vector bundles on an algebraic surface [J].
Matsuki, K ;
Wentworth, R .
INTERNATIONAL JOURNAL OF MATHEMATICS, 1997, 8 (01) :97-148
[8]  
Mumford D., 1994, GEOMETRIC INVARIANT, V34
[9]  
Nakajima H., 1996, REPRESENTATION THEOR, V19, P139
[10]  
NAKAJIMA H, CONVOLUTION HOMOLOGY