1 citations · 1 across the 1 of their papers we have counts for
4 papers
On real resonances for three-dimensional Schrödinger operators with point interactions
Alessandro Michelangeli, Raffaele Scandone
We prove the absence of positive real resonances for Schrödinger operators with finitely many point interactions in and we discuss such a property from the perspecti…
Zero modes and low-energy resolvent expansion for three dimensional Schrodinger operators with point interactions
Raffaele Scandone
We investigate the low-energy behavior of the resolvent of Schrodinger operators with finitely many point interactions in three dimensions. We also discuss the occurrence and the m…
Point-like perturbed fractional Laplacians through shrinking potentials of finite range
Alessandro Michelangeli, Raffaele Scandone
We reconstruct the rank-one, singular (point-like) perturbations of the -dimensional fractional Laplacian in the physically meaningful norm-resolvent limit of fractional Schrödi…
On fractional powers of singular perturbations of the Laplacian
Vladimir Georgiev, Alessandro Michelangeli, Raffaele Scandone
We qualify a relevant range of fractional powers of the so-called Hamiltonian of point interaction in three dimensions, namely the singular perturbation of the negative Laplacian w…