Halmos, Paul R <br/><br/>
Introduction to Hilbert space   and the theory of special multiplicity  

 - 2nd ed. 
 - New York   Chelsea publishing company   1951 
 - 114 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spectral Theory<br/>Mathematics<br/>Hilbert Space
<br/><br/><label>Dewey Class. No.: </label>515.733  / H14