Analysis and Applied Mathematics Seminar
George Nenciu
Institute of Mathematics of the Romanian Academy
Perturbation theory for discrete eigenvalues: Kato-Rellich theory and asymptotic expansions
Abstract: Basic facts of Kato-Rellich regular perturbation for discrete eigenvalues are
briefly reviewed. For singular perturbations (e.g. anharmonic oscillator,
Stark effect) asymptotic expansions for the perturbed projections leading to
(almost) invariant subspaces are provided.
This is a two hour introductory talk intended mainly for graduate students.
Monday September 21, 2015 at 4:00 PM in SEO 636