Akhiezer, N. I. 1901- Theory of linear operators in Hilbert space [electronic resource] / [by] N.I. Akhiezer and I.M. Glazman. Translated from the Russian by Merlynd Nestell.. — New York, : F. Ungar Pub. Co.,, [c1961-63]. — 2 v. 25 cm. LCCN: 60053138 /L/r842 Subjects--Topical Terms: Hilbert space.Linear operators. LC Class. No.: QA691 / .A383