Rellich, Franz
Perturbation theory of eigenvalue problems - New York Gordon and Breach Science Pub. 1969 - ix, 127 p.
_
Perturbation theory
515.392 / REL
Perturbation theory of eigenvalue problems - New York Gordon and Breach Science Pub. 1969 - ix, 127 p.
_
Perturbation theory
515.392 / REL