Pluricanonical maps of stable log surfaces
Pluricanonical maps of stable log surfaces
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稳定原木表面的真实图
DOI:
10.1016/j.aim.2014.03.009
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发表时间:
2014
影响因子:
1.7
通讯作者:
Sönke Rollenske
中科院分区:
文献类型:
--
作者:
Wenfei Liu;Sönke Rollenske
Stable surfaces and their log analogues are the type of varieties naturally occurring as boundary points in moduli spaces. We extend classical results of Kodaira and Bombieri to this more general setting: if (X, Δ) is a stable log surface with reduced boundary (possibly empty) and I is its global index, then 4 I (K X+ Δ) is base-point-free and 8 I (K X+ Δ) is very ample. These bounds can be improved under further assumptions on the singularities or invariants, for example, 5 (K X+ Δ) is very ample if (X, Δ) has semi-canonical singularities.
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DOI:
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发表时间:
1985
期刊:
影响因子:
--
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通讯作者:
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期刊:
arXiv: Algebraic Geometry
影响因子:
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期刊:
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期刊:
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影响因子:
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作者:
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影响因子:
7.3
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