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Scopus Author ID: 12807507000

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Employment (1)

V. N. Karazin Kharkiv National University: Kharkiv, UA

1995 to present | lecturer (School of Mathematics and Computer Sciences)
Employment
Source: Self-asserted source
Sergey Zagorodnyuk

Education and qualifications (1)

V. N. Karazin Kharkiv National University: Kharkiv, UA

1990 to 1995
Education
Source: Self-asserted source
Sergey Zagorodnyuk

Works (26)

On the Truncated Multidimensional Moment Problems in <inline-formula><math display="inline"><semantics><mrow><msup><mi mathvariant="double-struck">C</mi><mi>n</mi></msup></mrow></semantics></math></inline-formula>

Axioms
2022-01 | Journal article | Author
DOI: 10.3390/axioms11010020
Contributors: Sergey Zagorodnyuk
Source: check_circle
Multidisciplinary Digital Publishing Institute

The operator approach to the truncated multidimensional moment problem

Complex Manifolds
2019 | Journal article
DOI: 10.1515/conop-2019-0001
EID:

2-s2.0-85062210266
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Difference equations related to Jacobi-type pencils

Journal of Difference Equations and Applications
2018 | Journal article
DOI: 10.1080/10236198.2018.1515929
EID:

2-s2.0-85053059555
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

On the truncated two-dimensional moment problem

Advances in Operator Theory
2018 | Journal article
DOI: 10.15352/aot.1708-1212
EID:

2-s2.0-85052650652
Contributors: Zagorodnyuk, S.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Orthogonal polynomials associated with some Jacobi-type pencils

Ukrainian Mathematical Journal
2017 | Journal article
DOI: 10.1007/s11253-017-1300-3
EID:

2-s2.0-85016092845
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

The inverse spectral problem for jacobi-type pencils

Symmetry, Integrability and Geometry: Methods and Applications (SIGMA)
2017 | Journal article
DOI: 10.3842/SIGMA.2017.085
EID:

2-s2.0-85039059453
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Unitary extensions of Pairs of commuting isometric operators and their generalized resolvents

New York Journal of Mathematics
2017 | Journal article
EID:

2-s2.0-85019738478
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

On extensions of J-skew-symmetric and J-isometric operators

Operators and Matrices
2015 | Journal article
DOI: 10.7153/oam-09-49
EID:

2-s2.0-84951279312
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Truncated moment problems for J-self-adjoint, J-skew-self-adjoint and J-unitary operators

Annals of Functional Analysis
2015 | Journal article
DOI: 10.15352/afa/06-2-09
EID:

2-s2.0-84946400744
Contributors: Zagorodnyuk, S.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

An algorithm for the truncated matrix hausdorff moment problem

Communications in Mathematical Analysis
2014 | Journal article
EID:

2-s2.0-84919624052
Contributors: Choque Rivero, A.E.; Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Invertible extensions of symmetric operators and the corresponding generalized resolvents

International Journal of Mathematical Analysis
2014 | Journal article
DOI: 10.12988/ijma.2014.410321
EID:

2-s2.0-84921667143
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

On the density of polynomials in some spaces L<sup>2</sup>(M)

Mathematical Notes
2014 | Journal article
DOI: 10.1134/S0001434614010064
EID:

2-s2.0-84894713822
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Generalized resolvents of symmetric and isometric operators: The shtraus approach

Annals of Functional Analysis
2013 | Journal article
EID:

2-s2.0-84894491761
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Nevanlinna formula for the truncated matrix trigonometric moment problem

Ukrainian Mathematical Journal
2013 | Journal article
DOI: 10.1007/s11253-013-0710-0
EID:

2-s2.0-84880736532
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Devinatz's moment problem: A description of all solutions

Journal of Operator Theory
2012 | Journal article
EID:

2-s2.0-84871421865
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

The matrix Stieltjes moment problem: A description of all solutions

New York Journal of Mathematics
2012 | Journal article
EID:

2-s2.0-84875451202
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Density of polynomials in some L<sup>2</sup> spaces on radial rays in the complex plane

Linear Algebra and Its Applications
2011 | Journal article
DOI: 10.1016/j.laa.2011.01.015
EID:

2-s2.0-79952624970
Contributors: Marcellán, F.; Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

On the complex symmetric and skew-symmetric operators with a simple spectrum

Symmetry, Integrability and Geometry: Methods and Applications (SIGMA)
2011 | Journal article
DOI: 10.3842/SIGMA.2011.016
EID:

2-s2.0-84855252448
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Truncated matrix trigonometric problem of moments: Operator approach

Ukrainian Mathematical Journal
2011 | Journal article
DOI: 10.1007/s11253-011-0552-6
EID:

2-s2.0-82355191504
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

On a j-polar decomposition of a bounded operator and matrices of j-symmetric and j-skew-symmetric operators

Banach Journal of Mathematical Analysis
2010 | Journal article
DOI: 10.15352/bjma/1297117238
EID:

2-s2.0-77956223289
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

On the strong matrix Hamburger moment problem

Ukrainian Mathematical Journal
2010 | Journal article
DOI: 10.1007/s11253-010-0370-2
EID:

2-s2.0-78149499845
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

On the two-dimensional moment problem

Annals of Functional Analysis
2010 | Journal article
EID:

2-s2.0-84871406208
Contributors: Zagorodnyuk, S.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Orthogonal polynomials on rays: Christoffel's formula

Boletin de la Sociedad Matematica Mexicana
2009 | Journal article
EID:

2-s2.0-84858436624
Contributors: Rivero, A.E.C.; Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Orthogonal polynomials on rays: Properties of zeros, related moment problems and symmetries

Journal of Mathematical Physics, Analysis, Geometry
2008 | Journal article
EID:

2-s2.0-78651390591
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

On the basic set of solutions of a high-order linear difference equation

Journal of Difference Equations and Applications
2006 | Journal article
DOI: 10.1080/10236190500539410
EID:

2-s2.0-33645769047
Contributors: Marcellán, F.; Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

On generalized Jacobi matrices and orthogonal polynomials

New York Journal of Mathematics
2003 | Journal article
EID:

2-s2.0-3042634599
Contributors: Zagorodnyuk, S.M.
Source: Self-asserted source
Sergey Zagorodnyuk via Scopus - Elsevier

Peer review (5 reviews for 1 publication/grant)

Review activity for Journal of computational and applied mathematics. (5)
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