Davies, E. B. <br/><br/>
Spectral theory and differential operators   

 - Cambridge  Cambridge University Press  1995 
 - ix, 182p. Index, Bibl. 
 - Cambridge studies in Advanced Mathematics   v. 42 .
<br/><br/> "Purchased under NBHM grant for the year 1994-1995"   
<br/><br/><label>Dewey Class. No.: </label>515.72  / D255.ST