Deficiency numbers of operators generated by infinite Jacobi matrices

I. N. Braeutigam, K. A. Mirzoev

Let $A_j,B_j$ $(j=0,1,\dots )$ be $m\times m$ matrices, whose elements are complex numbers, $A_j$ are selfadjoint matrices and $B_j^{-1}$ exist. We study the deficiency index prob…