Berthier, A. M. <br/><br/>
Spectral theory and wave operators for the Schrodinger equation/ 
A.M. Berthier 
 - Boston:  Pitman Pub.,  1982 
 - 306 pages;   24 cm. 
 - Research notes in mathematics  71 .
<br/><br/>Includes indexes. Bibliography: p. 294-298. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Schrodinger equation.<br/>Spectral theory (Mathematics).<br/>Differential operators