00506nam a2200181Ia 4500082002000000100002000020245002600040260002500066300002900091490004200120500000500162690000600167700000500173952010200178964001700280921001000297999001700307  a515.72bC767.SO  aConway, John B.  aSubnormal operatorsb  aBostonbPitmanc1981  axvii, 476p. Index, Bibl.  aResearch notes in Mathematicsv v. 51  a  a   a  00104070aISIbISId1998-09-18l0o515.72 C767.SOpDP18353r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a12197  c12197d12197