00261nam a2200109Ia 4500082001900000100001700019245005500036260002700091300002300118500000500141700000500146  a515.7bM425.HS  aMate, Laszle  aHilbert space methods in science and engineeringb  aNew YorkbHilgerc1989  aviii, 272p. Index.  a  a