Rellich, Franz. <br/><br/>
Perturbation theory of eigenvalue problems 
[by] Franz Rellich, assisted by J. Berkowitz. 
 - New York,  Gordon and Breach  [1969] 
 - Notes on mathematics and its applications .
<br/><br/> "Taken from lectures given by Professor Rellich at New York University in 1953." 
<br/><br/>Bibliography: p. 123-124. 
<br/><br/><label>LCCN: </label>68021967 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functional analysis.<br/>Perturbation (Mathematics)<br/>Eigenvalues.
<br/><br/><label>LC Class. No.: </label>QA320  / .R45 1969 
<br/><br/><label>Dewey Class. No.: </label>517/.5