Ayres, Frank  1901- <br/><br/>
Theory and problems of differential equations 

 - New York:   Schaum,  1952. 
 - 296 p. :  graf.;  
 - Schaum's outline series .
 - Schaum's outline series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECUACIONES<br/>PARTIAL DIFFERENTIAL EQUATIONS<br/>CONVERGENCIA (SERIES)<br/>BESSEL DIFFERENTIAL EQUATION<br/>LEGENDRE POLYNOMIALS<br/>FUNCION DE GAUSS