00352cam a22001211  450000500170000000800410001708200140005810000200007224500520009226000430014430000250018765000180021220200117122136.0840607s1967    nju      b    000 0 eng  00a517.7 HAL1 aHalmos, Paul R.12aA Hilbert space problem bookc/ Paul R. Halmos.  aPrinceton, N.J.,bVan Nostrandc©1967  axvii, 365 p.c24 cm. 0aHilbert space