Characteristic varieties of graph manifolds and quasi-projectivity of fundamental groups of algebraic links
arXiv:1904.00729 · doi:10.1007/s40879-019-00391-y
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.
22 pages, 6 figures, to appear in European Journal of Mathematics