Skeleta of affine hypersurfaces

被引:15
|
作者
Ruddat, Helge [1 ]
Sibilla, Nicolo
Treumann, David
Zaslow, Eric
机构
[1] Johannes Gutenberg Univ Mainz, Math Inst, D-55099 Mainz, Germany
关键词
Affine; Homotopy equivalence; Hypersurface; Kato-Nakayama space; Log geometry; Newton polytope; Retraction; Skeleton; Toric degeneration; Triangulation;
D O I
10.2140/gt.2014.18.1343
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
A smooth affine hypersurface Z of complex dimension n is homotopy equivalent to an n-dimensional cell complex. Given a defining polynomial f for Z as well as a regular triangulation T-Delta of its Newton polytope Delta, we provide a purely combinatorial construction of a compact topological space S as a union of components of real dimension n, and prove that S embeds into Z as a deformation retract. In particular, Z is homotopy equivalent to S.
引用
收藏
页码:1343 / 1395
页数:53
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