Helgason, Sigurdur <br/><br/>
Groups and geometric analysis:  integral geometry, invariant differential operators, and spherical functions/ 
Sigurdur Helgason. 
 - Providence, R.I.:  American Mathematical Society,  2000. 
 - xxii, 667 p.:  ill.;  26 cm. 
 - Mathematical surveys and monographs;  v. 83 .
 - Mathematical surveys and monographs;  no. 83. .
<br/><br/> Originally published: Orlando : Academic Press, c1984. 
<br/><br/>Includes bibliographical references (p. 619-653) and index. 
<br/><br/><label>ISBN: </label>0821826735 (alk. paper) 
<br/><br/><label>LCCN: </label>00034997 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lie groups.<br/>Geometry, Differential.
<br/><br/><label>Dewey Class. No.: </label>512.55  / H474g