00371nam a2200121Ia 4500082002000000100003000020245006200050260003300112300002000145490005200165500000500217700002700222  a515.72bH981.AF  aHutson, V. and Pym, J. S.  aApplications of functional analysis and operator theoryb  aLondonbAcademic Pressc1980  axi, 389p. Index  aMathematics in Science and Engineeringv v. 146  a  aPym, J. S. ; jt. auth.