bounded potential perturbations 1compact resolvent 1hypoelliptic operators 1self-adjoint operators 1spectral simplicity 1
From the 1 of 2 linked papers with an AI index.
2 papers
math.SP2026
Generic simplicity for self-adjoint operators under bounded potential perturbations
Marianna Chatzakou, Bernard Helffer
The paper investigates when the eigenvalues of a semibounded self‑adjoint operator with compact resolvent become simple after adding a generic bounded real potential, providing an…
math.AP2026
Inverse Spectral Analysis of Singular Radial AKNS Operators
Damien Gobin, Benoît Grébert, Bernard Helffer +1
We study an inverse spectral problem for singular AKNS operators based on spectral data associated with two distinct values of the effective angular momentum parameter . Our…