Kantorovitz, Shmuel <br/><br/>
Semigroups of operators and spectral theory   
by Shmuel Kantorovitz 
 - New York  Longman  1995 
 - 135p. 
 - Pitman research notes in mathematics series .
<br/><br/><label>ISBN: </label>0582277787 
<br/><br/><label>Dewey Class. No.: </label>515.724  / N95