2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/66051We use $p$-adic families of automorphic forms for an unitary group in three variables, containing some non-tempered forms constructed by Rogawski, to prove some cases of the Bloch-Kato conjectures.42 pages, LateX, frenchNumber TheoryRepresentation TheoryRepresentations non temperees pour U(3) et conjectures de Bloch-Katotext