Irving, Ronald S.,  1952- <br/><br/>
A filtered category OS and applications/ 
Ronald S. Irving. 
 - Providence, R.I.:  American Mathematical Society,  1990. 
 - v, 117 p.;  26 cm. 
 - Memoirs of the American Mathematical Society;  no. 419. .
<br/><br/> On t.p. "S" is subscript.  "January 1990, volume 83, number 419 (first of 6 numbers)." 
<br/><br/>Includes bibliographical references (p. 115-117). 
<br/><br/><label>ISBN: </label>0821824821 (acid-free paper) 
<br/><br/><label>LCCN: </label>89018094 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Verma modules<br/>Semisimple Lie groups<br/>Filtered modules.
<br/><br/><label>Dewey Class. No.: </label>510 s  512/.2