2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/158971Recently Kosaki proved an uncertainty principle for matrices, related to Wigner-Yanase-Dyson information, and asked if a similar inequality could be proved in the von Neumann algebra setting. In this paper we prove such an uncertainty principle in the semifinite case.Mathematical PhysicsOperator Algebras62B10, 94A17 (Primary); 46L30, 46L60 (Secondary)text