Resumen de Operator valued versions of the Radon-Nikodym Theorem and of the F. and M. Riesz Theorem

Ramón Bruzual, Marisela Domínguez, Javier Suárez

• For an absolutely continuous operator valued measure in weak sense, we give a necessary and sufficient condition to have a density in strong sense. This result is used to obtain an operator valued version of the F. and M. Riesz Theorem