Torsion in Milnor fiber homology

被引:16
|
作者
Cohen, Daniel C. [1 ]
Denham, Graham
Suciu, Alexander I.
机构
[1] Louisiana State Univ, Dept Math, Baton Rouge, LA 70803 USA
来源
ALGEBRAIC AND GEOMETRIC TOPOLOGY | 2003年 / 3卷 / 01期
基金
加拿大自然科学与工程研究理事会;
关键词
Milnor fibration; characteristic variety; arrangement;
D O I
10.2140/agt.2003.3.511
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In a recent paper, Dimca and Nemethi pose the problem of finding a homogeneous polynomial f such that the homology of the complement of the hypersurface defined by f is torsion-free, but the homology of the Milnor fiber of f has torsion. We prove that this is indeed possible, and show by construction that, for each prime p, there is a polynomial with p-torsion in the homology of the Milnor fiber. The techniques make use of properties of characteristic varieties of hyperplane arrangements.
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页码:511 / 535
页数:25
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