Mathematical NotesAre sufficient conditions for conservativity of minimal quantum semigroups necessary?Franco Fagnola, LEOPOLDO PANTALEÓN-MARTÍNEZPublished May 1, 2012• 3 citationsPublisherAbstractWe show by a counter-example that the two basic operator inequalities in the typical sufficient conditions for conservativity of minimal quantum dynamical semigroups are, in fact, both necessary.DOI10.1134/s000143461205032x