Characteristic varieties of quasi-projective manifolds and orbifolds
| Autor: | Bartolo, Enrique Artal, Cogolludo-Agustin, Jose Ignacio, Matei, Daniel |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Geom. Topol., 17:273-309, 2013 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.2140/gt.2013.17.273 |
| Popis: | We prove that the irreducible components of the characteristic varieties of quasi-projective manifolds are either pull-backs of such components for orbifolds, or torsion points. This gives an interpretation for the so-called \emph{translated} components of the characteristic varieties, and shows that the zero-dimensional components are indeed torsion. The main result is used to derive further obstructions for a group to be the fundamental group of a quasi-projective manifold. Comment: 33 pages, no figures. General rearrangement and proof of Proposition 4.2 is expanded |
| Databáze: | arXiv |
| Externí odkaz: |
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