Abstract
We consider two families of realizations of the 2p×2p–Dirac differential expression with point interactions on a discrete set X = {x n }n=1∞ ⊂ ℝ on a half–line (line) and generalize certain results from [10] to the matrix case. We show that these realizations are always self-adjoint. We investigate the nonrelativistic limit as the velocity of light tends to infinity.
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Dedicated with great pleasure to Edvard Tsekanovskii on the occasion of his 80-th birthday
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Budyika, V., Malamud, M. & Posilicano, A. Nonrelativistic limit for 2p × 2p–Dirac operators with point interactions on a discrete set. Russ. J. Math. Phys. 24, 426–435 (2017). https://doi.org/10.1134/S1061920817040021
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DOI: https://doi.org/10.1134/S1061920817040021