Gilbert, Helmberg <br/><br/>
Introduction to spectral theory in Hilbert spaces /  
by Gilbert Helmberg 
 - New York :  Dover Publications, Inc. ,  1997 . 
 - 346 p.  Paper Back 
<br/><br/><label>ISBN: </label>9780486466224 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>Geometry<br/>Hilbert spaces<br/>Linear operators
<br/><br/><label>Dewey Class. No.: </label>515.722 2  / GIL-I