Helmberg, Gilbert <br/><br/>
Introduction to spectral theory in Hilbert space. 

 - Amsterdam ;:  London:  New York:  North-Holland,  Wiley,  1969. 
 - xxiii, 346 p.:  23 cm. 
 - North-Holland series in applied mathematics and mechanics;  v. 6. .
<br/><br/>Bibliography: p. 330-333. 
<br/><br/><label>LCCN: </label>68054507 
<br/><br/><label>Nat. Bib. No.: </label>Ne69-19 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spectral theory (Mathematics).<br/>Hilbert space.<br/>Linear operators.
<br/><br/><label>Dewey Class. No.: </label>515.7  / H478i