Hilbert space operators and operator algebras. Edited by Bela Sz.-Nagy. Szőkefalvi-Nagy, Béla, 1913- ed. Operator theory Congresses. Hilbert space Congresses. Operator algebras Congresses. QA326 .H54 517.38 SZH Label mounted on t.p.: Distributed in the U.S.A. by Humanities Press, New York. Papers presented at a conference sponsored by the János Bolyai Mathematical Society, and held at Tihany, Hungary, Sept. 14-18, 1970. English and German. Includes bibliographies. [Budapest : János Bolyai Mathematical Society]; distributed by North-Holland Pub. Co., Amsterdam 1972. 1972. 1972 Text 544 p. ; eng engger Colloquia mathematica Societatis János Bolyai, 5 Colloquia mathematica Societatis János Bolyai ; 5.