An introduction to the abelian Reidemeister torsion of three-dimensional manifolds
Résumé
These notes accompanied lectures given at the autumn school "Groupes de tresses et topologie en petite dimension" held in Pau in October 2009. The abelian Reidemeister torsion for 3-manifolds, and its refinements by Turaev, are introduced. Some applications, including relations between the Reidemeister torsion and other classical invariants, are surveyed.