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20132026
most citedGeneral -shell interactions for the two-dimensional Dirac operator: self-adjointness and approximation

24 citations · 73 across the 18 of their papers we have counts for

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Showing 2021Show all

6 papers · 1 filter

math.SP2021

Horizontal magnetic fields and improved Hardy inequalities in the Heisenberg group

Biagio Cassano, Valentina Franceschi, David Krejcirik +1

In this paper we introduce a notion of magnetic field in the Heisenberg group and we study its influence on spectral properties of the corresponding magnetic (sub-elliptic) Laplaci…

math.SP2021

Spectral enclosures for the damped elastic wave equation

Biagio Cassano, Lucrezia Cossetti, Luca Fanelli

In this paper we investigate spectral properties of the damped elastic wave equation. Deducing a correspondence between the eigenvalue problem of this model and the one of Lamé ope…

math.AP2021

Mass Propagation for Electromagnetic Schrödinger Evolutions

Juan Antonio Barceló, Biagio Cassano, Luca Fanelli

We investigate the validity of gaussian lower bounds for solutions to an electromagnetic Schrödinger equation with a bounded time-dependent complex electric potential and a time-in…

math.AP2021

Improved Hardy-Rellich inequalities

Biagio Cassano, Lucrezia Cossetti, Luca Fanelli

We investigate Hardy-Rellich inequalities for perturbed Laplacians. In particular, we show that a non-trivial angular perturbation of the free operator typically improves the inequ…

math.AP2021★ 24 cited

General -shell interactions for the two-dimensional Dirac operator: self-adjointness and approximation

Biagio Cassano, Vladimir Lotoreichik, Albert Mas +1

In this work we consider the two-dimensional Dirac operator with general local singular interactions supported on a closed curve. A systematic study of the interaction is performed…

math.SP2021

Eigenvalue bounds and spectral stability of Lamé operators with complex potentials

Biagio Cassano, Lucrezia Cossetti, Luca Fanelli

This paper is devoted to providing quantitative bounds on the location of eigenvalues, both discrete and embedded, of non self-adjoint Lamé operators of elasticity in…