Some analogs of Zariski's theorem on nodal line arrangements

被引:15
作者
Choudary, A. D. R.
Dimca, A.
Papadima, S.
机构
[1] Univ Bordeaux 1, F-33405 Talence, France
[2] Math Sci Res Inst, Berkeley, CA 94720 USA
来源
ALGEBRAIC AND GEOMETRIC TOPOLOGY | 2005年 / 5卷
关键词
hyperplane arrangement; oriented topological type; 1-marked group; intersection lattice; local system; Milnor fiber; Alexander cover;
D O I
10.2140/agt.2005.5.691
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
For line arrangements in P-2 with nice combinatorics (in particular, for those which are nodal away the line at infinity), we prove that the combinatorics contains the same information as the fundamental group together with the meridianal basis of the abelianization. We consider higher dimensional analogs of the above situation. For these analogs, we give purely combinatorial complete descriptions of the following topological invariants (over an arbitrary field): the twisted homology of the complement, with arbitrary rank one coefficients; the homology of the associated Milnor fiber and Alexander cover, including monodromy actions; the coinvariants of the first higher non-trivial homotopy group of the Alexander cover, with the induced monodromy action.
引用
收藏
页码:691 / 711
页数:21
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