On the completeness of root function system of the $2\times 2$ Dirac operators with non-regular boundary conditions

Abstract

The paper is concerned with the completeness property of root functions of the $2\times 2$ Dirac operator with summable complex-valued potential and non-regular boundary conditions. Sufficient conditions for the completeness of the root function system of the operator under consideration are established.

11 pages. arXiv admin note: text overlap with arXiv:2312.15933 by other authors