2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/136573For a unitary local system of rank one on a complete hyperbolic threefold of finite volume which has only one cusp, the Ruelle L-function is defined. We will show that if the first cohomology group of the local system vanishes its value at s=0 is equal to the square of the Franz-Reidemeister torsion.15 pagesDifferential GeometrySpectral Theory11F32, 11M36, 57M25, 57M27text