Rostyslav Kozhan
Senior Lecturer/Associate Professor at Department of Mathematics; Academic staff
- Telephone:
- +46 18 471 32 59
- E-mail:
- rostyslav.kozhan@math.uu.se
- Visiting address:
- Ångströmlaboratoriet, Regementsvägen 10
- Postal address:
- Box 480
751 06 UPPSALA
Download contact information for Rostyslav Kozhan at Department of Mathematics; Academic staff
Senior Lecturer/Associate Professor at Department of Mathematics; Analysis and Partial Differential Equations
- Telephone:
- +46 18 471 32 59
- E-mail:
- rostyslav.kozhan@math.uu.se
- Visiting address:
- Ångströmlaboratoriet, Regementsvägen 10
- Postal address:
- Box 480
751 06 UPPSALA
Short presentation
Check my webpage for a (relatively) up-to-date information: http://www2.math.uu.se/~rosko894/
My research is focused around Spectral Theory, Random Matrix Theory, and Theory of Orthogonal Polynomials

Publications
Recent publications
Christoffel transform and multiple orthogonal polynomials
Part of Journal of Computational and Applied Mathematics, 2026
- DOI for Christoffel transform and multiple orthogonal polynomials
- Download full text (pdf) of Christoffel transform and multiple orthogonal polynomials
Multiplicative non-Hermitian perturbations of classical β-ensembles
Part of Random Matrices. Theory and Applications, 2025
Szego recurrence for multiple orthogonal polynomials on the unit circle
Part of Proceedings of the American Mathematical Society, p. 2983-2997, 2024
A generalized Hermite-Biehler theorem and non-Hermitian perturbations of Jacobi matrices
Part of Journal of Mathematical Analysis and Applications, 2024
- DOI for A generalized Hermite-Biehler theorem and non-Hermitian perturbations of Jacobi matrices
- Download full text (pdf) of A generalized Hermite-Biehler theorem and non-Hermitian perturbations of Jacobi matrices
Hermitian and non-Hermitian perturbations of chiral Gaussian beta-ensembles
Part of Journal of Mathematical Physics, 2022
All publications
Articles in journal
Christoffel transform and multiple orthogonal polynomials
Part of Journal of Computational and Applied Mathematics, 2026
- DOI for Christoffel transform and multiple orthogonal polynomials
- Download full text (pdf) of Christoffel transform and multiple orthogonal polynomials
Multiplicative non-Hermitian perturbations of classical β-ensembles
Part of Random Matrices. Theory and Applications, 2025
Szego recurrence for multiple orthogonal polynomials on the unit circle
Part of Proceedings of the American Mathematical Society, p. 2983-2997, 2024
A generalized Hermite-Biehler theorem and non-Hermitian perturbations of Jacobi matrices
Part of Journal of Mathematical Analysis and Applications, 2024
- DOI for A generalized Hermite-Biehler theorem and non-Hermitian perturbations of Jacobi matrices
- Download full text (pdf) of A generalized Hermite-Biehler theorem and non-Hermitian perturbations of Jacobi matrices
Hermitian and non-Hermitian perturbations of chiral Gaussian beta-ensembles
Part of Journal of Mathematical Physics, 2022
Global fluctuations for Multiple Orthogonal Polynomial Ensembles
Part of Journal of Functional Analysis, 2021
Part of Journal of Approximation Theory, 2020
Relative Szego Asymptotics for Toeplitz Determinants
Part of International mathematics research notices, p. 5441-5496, 2019
Rank One Non-Hermitian Perturbations of Hermitian β-Ensembles of Random Matrices
Part of Journal of statistical physics, p. 92-108, 2017
Part of Communications in Mathematical Physics, p. 991-1027, 2017
Finite range perturbations of finite gap Jacobi and CMV operators
Part of Advances in Mathematics, p. 204-226, 2016