2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/68558Let M be a hyperbolic manifold of finite volume which fibers over the circle with fiber a once punctured torus, and let S be an arbitrary incompressible surface in M. We determine the characteristic JSJ-subpair of M-S and show, in particular, that the guts of (M,S) is empty.10 pages, submitted to AdMGeometric Topology57N10text