John Edward Gray

Academic Press, New York, 1972 ; F. Riesz and B. Sz. Nagy, Functional Analysis, Ungar, New York, 1955 ; R Courant and D. Hilbert, Methods of Mathematical Physics, John Wiley and sons, New York ; J. von Neumann, Mathematical Foundations of Quantum mechanics, Princeton University Press, 1955 ; N. Dunford and J.T. Schwartz, Linear Operators, John Wiley and sons, New York, 1988 ; J. Dieudonn´, El´ments d’Analyse, Gauthier-Villars, Paris, 1970. e e – Le probl`me de la mesure en m´canique quantique a