2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/225287The problem of exponentiating derivations of quasi *-algebras is considered in view of applying it to the determination of the time evolution of a physical system. The particular case where observables constitute a proper CQ*-algebra is analyzed.Mathematical PhysicsExponentiating derivations of quasi *-algebras: possible approaches and applicationstext