00359nam a2200133Ia 4500082001900000100002000019245007600039250000800115260002800123300001600151500004800167500000500215700000500220  a515.7bH194.IH  aHalmos, Paul R.  aIntroduction to Hilbert space and the theory of spectral multiplicityb  a2nd  aNew YorkbChelseac1957  a114p. Bibl.  a"Bibliography of Chelsea scientific Books".  a  a