00467nam a2200145Ia 4500020001500000082002000015100003500035245008200070260003600152300001400188490004300202500005400245500000500299700001700304  a0387945016  a515.72bH673.IS  aHislop, P. D. and Sigal, I. M.  aIntroduction to spectral theory; with applications to schrodinger operatorsb  aNew YorkbSpringer-Verlagc1996  aix, 337p.  aApplied Mathematical Sciences v v. 13  a"Purchased under NBHM grant for the year 1998-99"  a  aSigal, I. M.