The research in Secs. 1–3 is supported
by the Ministry of Science and Higher Education of the Russian Federation
(grant no. 075-15-2021-602).
The research in Secs. 4–6 is supported
by the Ministry of Science and Higher Education of the Russian Federation
in the framework of the state task
(grant no. FSSF-2023-0016).
Citation:
V. S. Budyka, M. M. Malamud, I. L. Pokrovski, “Deficiency Indices of Block Jacobi Matrices That Do Not Satisfy the Carleman Condition, and Operators with Point Interactions”, Mat. Zametki, 114:5 (2023), 789–795; Math. Notes, 114:5 (2023), 1060–1066