activity
20162026
most citedKlein's Paradox and the Relativistic -shell Interaction in

33 citations · 75 across the 13 of their papers we have counts for

collaborators

13 papers

math.AP2026

Relativistic Virial Operators

Lucrezia Cossetti, Luca Fanelli, Fabio Pizzichillo

When studying Dirac operators, it is well known that the phenomenon of Zitterbewegung leads to a lack of convexity of the variance, which creates difficulties in the analysis of di…

math.AP2024

A relativistic Hardy-type inequality with minimisers

Luca Fanelli, Fabio Pizzichillo

In this paper, we prove a sharp, weighted Hardy-type inequality for the Dirac operator. A key feature of our result is that the inequality is not only sharp but also attained, and…

math.AP2023

Dirac operators with infinite mass boundary conditions on unbounded domains with infinite corners

Miguel Camarasa, Fabio Pizzichillo

We investigate the self-adjointness of the two dimensional Dirac operator with infinite mass boundary conditions on an unbounded domain with an infinite number of corners. We prove…

math.AP2022

Keller and Lieb-Thirring estimates of the eigenvalues in the gap of Dirac operators

Jean Dolbeault, David Gontier, Fabio Pizzichillo +1

We estimate the lowest eigenvalue in the gap of the essential spectrum of a Dirac operator with mass in terms of a Lebesgue norm of the potential. Such a bound is the counterpart f…

math.AP2022

Dirac-Coulomb Operators with Infinite Mass Boundary Conditions in Sectors

Biagio Cassano, Matteo Gallone, Fabio Pizzichillo

We investigate the properties of self-adjointness of a two-dimensional Dirac operator on an infinite sector with infinite mass boundary conditions and in presence of a Coulomb-type…

math-ph2019

Dirac operators and shell interactions: a survey

Thomas Ourmières-Bonafos, Fabio Pizzichillo

In this survey we gather recent results on Dirac operators coupled with -shell interactions. We start by discussing recent advances regarding the question of self-adjointness fo…