00000nam a2200000 a 4500 20251203112310.0 9780821821473 515.724076 ABR Abramovich, A.Y Problems in operator theory USA American Mathematical Society 2002 xii,386p. 22cm. HB Graduate studies in mathematics Vol 51 includes bibliography and index Operator theory Aliprantis, C.D _ 190936 LIBSC C 154424 154424 0 0 0 0 PU PU 2012-02-20 2311.20 0 515.724076 ABR 190936 BK