A NOTE ON TORIC DELIGNE-MUMFORD STACKS

被引:10
|
作者
Perroni, Fabio [1 ]
机构
[1] Univ Zurich, Inst Math, CH-8057 Zurich, Switzerland
关键词
D O I
10.2748/tmj/1223057738
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We give a new description of the data needed to specify a morphism front a scheme to a toric Deligne-Mumford stack. The description is given in terms of a collection of line bundles and sections which satisfy certain conditions. As applications, we characterize any toric Deligne-Mumford stack as a product of roots of line bundles over the rigidified stack. describe the torus action, describe morphisms between toric Deligne-Mumford stacks with complete coarse moduli spaces in terms of homogeneous polynomials, and compare two different definitions of toric stacks.
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页码:441 / 458
页数:18
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