Welcome to my webpage.

I am a Docent and Associate Professor in the Department of Mathematics at Uppsala University.

My research spans spectral theory and theory of orthogonal polynomials with applications in random matrices, approximation theory, mathematical physics, and signal processing.

I received my PhD in Mathematics from the California Institute of Technology (advisor: B. Simon), and held postdoctoral positions at UCLA and KTH Royal Institute of Technology in Stockholm.

My research interests:

Theory of Orthogonal Polynomials

Classical and modern aspects on the real line, unit circle, including multiple and matrix-valued settings.

Spectral Theory & Random Matrices

Operator spectra and large-matrix asymptotics.

Analysis, Mathematical Physics, Signal Processing

Approximation theory, integrable probability, and other applications of orthogonal polynomials.

R. Kozhan
Docent, Associate Professor
Department of Mathematics Uppsala University

Email: kozhan-at-math.uu.se
Phone: +46 18-471-32-fifty nine
Address: Box 256, SE-751 05, Uppsala, Sweden

Last updated: 19 May 2026

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