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• #### Shell interactions for Dirac operators: On the point spectrum and the confinement ﻿

(SIAM Journal on Mathematical Analysis, 2015-12-31)
Spectral properties and the confinement phenomenon for the coupling $H + V$ are studied, where $H =-i\alpha \cdot \nabla + m\beta$ is the free Dirac operator in $\mathbb{R}^3$ and $V$ is a measure-valued potential. The ...