Normality Conditions on Hyponormal Operators and Anda's Theorem.
Characterizations of Convexoid Operators ? ? ... Let H be a not necessarily
separable complex Hilbert space. K(H). (B(H» will denote the algebra of all
compact ...... Les a1gebres d'operateurs dans l'espace. Hi1bertien,Gauthier-
Vil1ars, Paris, 1957. 
