Trefethen, Lloyd N.   <br/><br/>
Spectra and pseudospectra  the behavior of nonnormal matrices and operators 
by Lloyd N. Trefethen and Mark Embree. 
 - Princeton  Princeton University Press  2005 
 - xvii, 606 p. 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780691119465   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spectral theory (Mathematics)<br/>Spectrum analysis
<br/><br/><label>Dewey Class. No.: </label>530.155  / TRE