Brown Arlen <br/><br/>
Introduction to operator theory. V.1: Elements of functional analysis 
Brown Arlen, Pearcy Carl 
 - New York etc.  Springer-Verlag  1977 
 - 476 p. 
<br/><br/> Graduate texts in mathematics, 55 
<br/><br/><label>Dewey Class. No.: </label>517.98