Baumgartel, H. <br/><br/>
Analytic perturbation theory for matrices and operators / 
H. Baumgartel 
 - Basel :  Birkhauser Verlag,  1985 
 - 427 p. ;  25 cm. 
 - Operator theory.  Advances and applications ;  v.15 .
<br/><br/> Includes index 
<br/><br/>Bibliography : p.(415)-423 
<br/><br/><label>LCCN: </label>84-28301 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Matrices<br/>Linear operators<br/>Perturbation (Mathematics)