Decoherence of quantum Markov semigroups Rolando Rebolledo (2005) Annales de l'I.H.P. Probabilités et statistiques
Derivations of quasi * -algebras. Bagarello, F., Inoue, A., Trapani, C. (2004) International Journal of Mathematics and Mathematical Sciences
Differential representations of dynamical oscillator symmetries in discrete Hilbert space. Ruffing, Andreas (2000) Discrete Dynamics in Nature and Society