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Criterion of Bari basis property for $2 \times 2$ Dirac-type operators with strictly regular boundary conditions. (arXiv:2202.11148v1 [math.SP]) http://arxiv.org/abs/2202.11148
Criterion of Bari basis property for $2 \times 2$ Dirac-type operators with strictly regular boundary conditions. (arXiv:2202.11148v1 [math.SP]) http://arxiv.org/abs/2202.11148