Characteristic varieties of graph manifolds and quasi-projectivity of fundamental groups of algebraic links

E. Artal Bartolo; J. I. Cogolludo-Agustín; D. Matei

doi:10.1007/s40879-019-00391-y

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arXiv · 1904.00729

Characteristic varieties of graph manifolds and quasi-projectivity of fundamental groups of algebraic links

E. Artal Bartolo·J. I. Cogolludo-Agustín·D. Matei

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Abstract

The present paper studies the structure of characteristic varieties of fundamental groups of graph manifolds. As a consequence, a simple proof of Papadima's question is provided on the characterization of algebraic links that have quasi-projective fundamental groups. The type of quasi-projective obstructions used here are in the spirit of Papadima's original work.

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E. Artal Bartolo, J. I. Cogolludo-Agustín, D. Matei. 2019-04-01. Characteristic varieties of graph manifolds and quasi-projectivity of fundamental groups of algebraic links. https://doi.org/10.1007/s40879-019-00391-y

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