Trefethen, LIoyd N  . <br/><br/>
Spectra and pseudospectra: the bahavior of nonnormal matrices and operators /  
by LIoyd N. Trefethen and Mark Embree. 
 - New Jersey :   Princeton University Press ,   2005 
 - xvii, 606p ;  
<br/><br/><label>ISBN: </label>0-691-11946-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spectrum analysis
<br/><br/><label>Dewey Class. No.: </label>B  / P5