Kato. Tosio <br/><br/>
Perturbation theory for linear operators  

 - Berlin :  Springer-verlog,  ©1995. 
 - xxi, 619 p. :  ill. (b&w) ;  24 cm (Paperback) 
 - Classics in mathematics ; .
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>9783540586616 
<br/><br/><label>Subjects--Index Terms: </label>Perturbation (Mathematics) Linear operators Mathematics Partial Differential equations  Mathematical optimization Functional analysis 
<br/><br/><label>Dewey Class. No.: </label>515.353  / KAT / B