11 citations · 55 across the 38 of their papers we have counts for
4 papers · 2 filters
Generalized resolvents of symmetric and isometric operators: the Shtraus approach
Sergey M. Zagorodnyuk
This exposition paper is devoted to the theory of Abram Vilgelmovich Shtraus and his disciples and followers. This theory studies the so-called generalized resolvents of symmetric…
On the generalized resolvents of isometric operators with gaps
Sergey M. Zagorodnyuk
In this paper we obtain some slight correction and generalization of the results of Ryabtseva on the generalized resolvents for isometric operators with a gap in their spectrum. Al…
The Nevanlinna-type formula for the matrix Hamburger moment problem in a general case
Sergey M. Zagorodnyuk
In this paper we obtain a Nevanlinna-type formula for the matrix Hamburger moment problem in a general case. We only assume that the problem is solvable and has more that one solut…
The Nevanlinna-type formula for the truncated matrix trigonometric moment problem
Sergey M. Zagorodnyuk
This paper is a continuation of our previous investigation on the truncated matrix trigonometric moment problem in Ukrainian Math. J., 2011, 63, no.6, 786-797. In the present paper…