On the monodromy action on Milnor fibers of graphic arrangements

被引:22
作者
Macinic, Anca Danielal [1 ]
Papadima, Stefan [1 ]
机构
[1] Inst Math Simion Stoilow, RO-014700 Bucharest, Romania
关键词
Coxeter arrangement; Milnor fiber; Monodromy; Twisted homology; Aomoto complex; ORLIK-SOLOMON ALGEBRAS; LOCAL SYSTEMS; COMPLEMENTS; COHOMOLOGY; HYPERPLANES; THEOREM;
D O I
10.1016/j.topol.2008.09.014
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We analyze the monodromy action, over the rationals, on the first homology group of the Milnor fiber, for arbitrary subarrangements of Coxeter arrangements. We propose a combinatorial formula for the monodromy action, involving Aomoto complexes in positive characteristic. We verify the formula, in cases A, B and D. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:761 / 774
页数:14
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