查看更多>>摘要：The spectrum of an arbitrary self-adjoint extension of the minimal linear relation associated with the discrete symplectic system in the limit point case is completely characterized by using the limiting Weyl-Titchmarsh M+(lambda)-function. Furthermore, a dependence of the spectrum on a boundary condition is investigated and, consequently, several results of the singular Sturmian theory are derived. (C) 2021 Elsevier Inc. All rights reserved.
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Elsevier