2 papers
math.CA2019
Odinary differential operators of odd order with distribution coefficients
K. A. Mirzoev, A. A. Shkalikov
We work with differential expressions of the form \begin{align} τ_{2n+1} y &=(-1)^ni \{(q_{0}y^{(n+1)})^{(n)}+(q_{0}y^{(n)})^{(n+1)}\}+ \sum\limits_{k=0}^{n}(-1)^{n+k}(p^{(k)}_ky^{…
math.SP2015
Deficiency numbers of operators generated by infinite Jacobi matrices
I. N. Braeutigam, K. A. Mirzoev
Let be matrices, whose elements are complex numbers, are selfadjoint matrices and exist. We study the deficiency index prob…