Kauffman, R. M.  1941- <br/><br/>
The deficiency index problem for powers of ordinary differential expressions / 
R. M. Kauffman, Thomas T. Read [and] Antol Zettl ; edited by A. Dold [and] B. Eckmann 
 - Berlin :  Springer-Verlag,  1977 
 - vi, 112 p. ;  25 cm. 
 - Lecture notes in mathematics ;  621 .
<br/><br/><label>ISBN: </label>0387085238 :  USD 18.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Boundary value problems--Weyl theory<br/>Differential operators
<br/><br/><label>Dewey Class. No.: </label>510.82