Titchmarsh, Edward Charles,  1899- <br/><br/>
Eigenfunction expansions associated with second-order differential e quations  / 
by E.C.Titchmarsh 
 - Oxford :  Clarendon Press ,  1950-58. 
 - 2 v. ;  25cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.<br/>Series, Infinite.<br/>Harmonic analysis.<br/>Boundary value problems.<br/>Eigenfunction expansions.
<br/><br/><label>Dewey Class. No.: </label>517.38 TIT