Local vanishing for toric varieties

被引:0
|
作者
Shen, Wanchun [1 ]
Venkatesh, Sridhar [2 ]
Vo, Anh Duc [1 ]
机构
[1] Harvard Univ, Dept Math, 1 Oxford St, Cambridge, MA 02138 USA
[2] Univ Michigan, Dept Math, 530 Church St, Ann Arbor, MI 48109 USA
关键词
14M25; 14F17; 14B05;
D O I
10.1007/s00229-024-01553-3
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let X be a toric variety. We establish vanishing (and non-vanishing) results for the sheaves Ri f(*)Omega(p)((X) over tilde)(log E), where f : (X) over tilde -> X is a strong log resolution of singularities with reduced exceptional divisor E. These extend the local vanishing theorem for toric varieties in Mustata et al. (J. Inst. Math. Jussieu 19(3):801-819, 2020). Our consideration of these sheaves is motivated by the notion of k-rational singularities introduced by Friedman and Laza (Higher Du Bois and higher rational singularities, 2001). In particular, our results lead to criteria for toric varieties to have k-rational singularities, as defined in Shen et al. (On k-Du Bois and k-rational singularities, 2023).
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页码:617 / 634
页数:18
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