作者: Thomas Ourmières-Bonafos , Fabio Pizzichillo
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摘要: In this survey we gather recent results on Dirac operators coupled with $\delta$-shell interactions. We start by discussing advances regarding the question of self-adjointness for these operators. Afterward switch to an approximation question: can be recovered as limits squeezing potentials ? also discuss spectral features models. Namely, recall main consequences a resolvent formula and conclude commenting result asymptotic nature eigenvalues in gap operator Lorentz-scalar interaction.