Simple K3 singularities which are hypersurface sections of toric singularities(Geometry of Toric Varieties and Convex Polytopes)
Simple K3 singularities which are hypersurface sections of toric singularities(Geometry of Toric Varieties and Convex Polytopes)
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简单 K3 奇点,它是环面奇点的超曲面部分(环面变体和凸多面体的几何)
DOI:
10.2977/prims/1195169272
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发表时间:
1991
期刊:
影响因子:
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通讯作者:
Hiroyasu Tsuchihashi
中科院分区:
文献类型:
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作者:
Hiroyasu Tsuchihashi
Yonemura [9] classified the weights of non-degenerate quasi-homogeneous polynomials on C which define simple K3 singularities. On the other hand, to each quasi-homogeneous polynomial /—2v(E/z>(y)4Cvz v there exists an element "o in (6>o) such that = 1 if cv^0, where z(>"^TM^) = zF^zTtf Then we may regard the point MO as the weight of/. Let A* be the convex hull of {v <E (Z^0) 1 <V,MO) 1}. Then dim A* = 3 and (1,1,1,1) E Int (A*), if/defines a simple K3 singularity (see [9]). As a generalization of this fact, we obtain: