2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/221283We prove a uniqueness theorem for an inverse boundary value problem for the Maxwell system with boundary data assumed known only in part of the bound- ary. We assume that the inaccessible part of the boundary is either part of a plane, or part of a sphere. This work generalizes the results obtained by Isakov for the Schrödinger equation to Maxwell equations.40 pagesAnalysis of PDEs34A55; 34A30text