General theory of Banach algebras. Rickart, C. E. Banach algebras. Rickart, C. E. (Charles Earl), 1913- Banach algebras. QA247 .R5 512 RIG Includes index Bibliography: p. 333-381 Princeton, N.J., Van Nostrand [1960] [1960] 1960 Text xi, 394 p. ; eng The University series in higher mathematics