Kauffman, Robert McKenzie <br/><br/>
The deficiency index problem for powers of ordinary differential expressions 
Robert. M. Kauffman, Thomas. T. Read, Anton Zettl 
 - Berlin  New York  Springer-Verlag  1977 
 - vi, 112 p  25 cm 
 - Lecture notes in mathematics  621 .
<br/><br/> Cuprinde bibliografie si index 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>0387085238 
<br/><br/><label>LCCN: </label>77025921 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Boundary value problems--Weyl theory<br/>Differential operators
<br/><br/><label>Dewey Class. No.: </label>510.8