Davies, E. B. <br/><br/>
Spectral theory and differential operators/ 
E.B. Davies. 
 - Cambridge, UK:  Cambridge University Press,  1996. 
 - ix, 182 p.:  ill.;  24 cm. 
 - Cambridge studies in advanced mathematics;  42 .
 - Cambridge studies in advanced mathematics;  42. .
<br/><br/>Includes bibliographical references (p. 178) and index. 
<br/><br/> A new proof of the spectral theorem for unbounded self-adjoint operators is followed by its application to a variety of second order elliptic differential operators, from those with discrete spectrum to Schrčodinger operators acting on L2(RN). 
<br/><br/><label>ISBN: </label>0521587107 9780521587105 0521472504 9780521472500 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spectral theory (Mathematics)<br/>Elliptic operators.
<br/><br/><label>Dewey Class. No.: </label>515.35  / D255s