Encyclopedia of mathematics and its applications, volume 4 / 
Gian-Carlo Rota, editor. 
 - Reading, Massachusetts :  Addison-Wesley Publishing,  1977. 
 - xxx, 285 p. ;  24 cm. 
 - Encyclopedia of mathematics and its applications ; v. 4. Section, Special functions .
<br/><br/>Includes bibliographical references and index. 
<br/><br/>symmetry and separation of variables.  Willard Miller, Jr., with a foreword by Mark Kac. 
<br/><br/><label>ISBN: </label>0201135035 (Hb.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Encyclopedias.<br/>Symmetry (Physics)<br/>Functional, Special.<br/>Differential equations, Partial--Numerical solutions.
<br/><br/><label>LC Class. No.: </label>QA5  / .E52 1977