English

On the instability of eigenvalues

Spectral Theory 2011-01-07 v1 Mathematical Physics Functional Analysis math.MP

Abstract

This is the proceeding of a talk given in Workshop on Differential Geometry and its applications at Alexandru Ioan Cuza University Ia\c{s}i, Romania, September 2--4, 2009. I explain how positive commutator estimates help in the analysis of embedded eigenvalues in a geometrical setting. Then, I will discuss the disappearance of eigenvalues in the perturbation theory and its relation with the Fermi golden rule.

Cite

@article{arxiv.1101.1002,
  title  = {On the instability of eigenvalues},
  author = {Sylvain Golenia},
  journal= {arXiv preprint arXiv:1101.1002},
  year   = {2011}
}

Comments

to appear in "Cluj University Press"

R2 v1 2026-06-21T17:07:54.839Z