2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/112813We obtain a Bochner type formula and an estimate from below on the spectrum of the sublaplacian of a compact strictly pseudoconvex CR manifold.21 pagesDifferential Geometry32V20; 53C17; 53C25; 58C40The Lichnerowicz theorem on CR manifoldstext