Let M be a 3-manifold with torus boundary which is a rational homology circle. We study deformations of reducible representations of (M ) into SL2(C) associated to a simple root of the Alexander polynomial. We also describe the local structure of the representation and character varieties. © 2001, by Walter de Gruyter GmbH & Co. KG. All rights reserved.
Heusener, M., Porti, J., & Peiró, E. S. (2001). Deformations of reducible representations of 3-manifold groups into SL2(C). Journal fur die Reine und Angewandte Mathematik, 2001(530), 191-227. https://doi.org/10.1515/crll.2001.003