Rings of operators / Irving Kaplansky. Kaplansky, Irving, 1917-2006. Berberian, Sterling K., 1926- ed. Von Neumann algebras. Lattice theory. Rings (Algebra) QA326 .K3 1968 512.815 KAR Revised ed. of notes taken by S. Berberian during a course given by the author at the University of Chicago in the summer of 1955, and issued the same year in mimeographed form. Includes index. Bibliography: p. 143-145. New York : W. A. Benjamin, 1968. 1968. 1968 Text vi, 151 p. ; eng Mathematics lecture note series