25-30 November 2024
Saint-Petersburg University
Europe/Moscow timezone

Extremal measures and asymptotics of orthogonal polynomials of a discrete variable

30 Nov 2024, 10:00
35m
Saint-Petersburg University

Saint-Petersburg University

Department of Mathematics and Computer Sciences, Saint-Petersburg University, Saint Petersburg, 14 line V.O., 29B Yandex maps link: https://yandex.ru/maps/-/CDw2mFl9 Google maps link: https://maps.app.goo.gl/L1Nrzf81wahREKop6 ZOOM streaming at: TBA

Speaker

Vladimir Lysov (Keldysh Institute of Applied Mathematics of RAS, Moscow)

Description

In the series of works of the 1980s, A.A. Gonchar and E.A. Rakhmanov developed a method for studying the asymptotic behavior of polynomials orthogonal with respect to varying (i.e., depending on the degree of the polynomial) weight.
Orthogonality was considered both on real intervals and on curves with special symmetry ($S$-property).
We extend these results in two directions.
First, we consider multiple orthogonality, and second, discrete orthogonality measures.
During the talk we formulate some general results and provide specific examples of their use.

Primary author

Vladimir Lysov (Keldysh Institute of Applied Mathematics of RAS, Moscow)

Presentation Materials

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