Halmos, Paul R. <br/><br/>
A Hilbert space problem book 

 - 2nd ed., rev. 
 - New Delhi  Springer  2014 
 - xv, 385 p. 
<br/><br/><label>ISBN: </label>9788184898323 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hilbert spaces-Problems, exercises, etc.
<br/><br/><label>Dewey Class. No.: </label>515.733076  / HAL