2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/227345In this paper we consider the order-like relation for self-adjoint operators on some Hilbert space. This relation is defined by using Jensen inequality. We will show that under some assumptions this relation is antisymmetric.10 pagesFunctional AnalysisA note on Jensen inequality for self-adjoint operatorstext