Theory of linear operators in Hilbert space ; vol. 1 / [by] N.I. Akhiezer and I.M. Glazman. Translated from the Russian by Merlynd Nestell. Teoriia lineĭnykh operatorov v gilʹbertovom prostranstve. English Linear operators. Akhiezer, N. I. (Naum Ilʹich), 1901- Glazman, I. M. (Izrail Markovich), joint author. Hilbert space. Linear operators. QA691 .A383 517.38301 AKT Includes index. Bibliography : p.139 - 144. New York : F. Ungar Pub. , c1961. c1961. 1961 Text 2 v. ; eng engrus