On the combinatorial classification of toric log del Pezzo surfaces

On the combinatorial classification of toric log del Pezzo surfaces
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复曲面 log del Pezzo 曲面的组合分类

DOI:
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发表时间:
2008
期刊:
LMS J. Comput. Math.
影响因子:
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通讯作者:
Benjamin Nill
Benjamin Nill
中科院分区:
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文献类型:
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作者:
A. Kasprzyk;M. Kreuzer;Benjamin Nill

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Toric log del Pezzo曲面对应于包含其内部原点且仅具有基本点的凸格子多边形。利用L指数,得到了这些多边形的体积和边界格点个数的一个上界,并给出了这些多边形的分类技巧:给出了指数2的直接分类,得到了所有L和lt;17的分类。
Toric log del Pezzo surfaces correspond to convex lattice polygons containing the origin in their interior and having only primitive vertices. An upper bound on the volume and on the number of boundary lattice points of these polygons is derived in terms of the index l. Techniques for classifying these polygons are also described: a direct classification for index two is given, and a classification for all l<17 is obtained.