MATH Semineri: “Extremal polynomials on a Jordan arc and on the real line”, Gökalp Alpan, Uppsala University, 18:00 3 Kasım (EN)

You are cordially invited to the Analysis Seminar organized by the Department of Mathematics.

Speaker: Gökalp Alpan (Uppsala University)
“Extremal polynomials on a Jordan arc and on the real line”

Abstract: We briefly describe Widom’s theory of extremal polynomials on a system of smooth Jordan curves and arcs. Then we discuss some recent improvements on the upper estimate for weighted Chebyshev polynomials given in Widom’s seminal paper (1969).

We also survey optimal lower and upper bounds for the norms of weighted Chebyshev polynomials and orthogonal polynomials on the real line.

Date: 3 November, 2021
Time: 18:00, GMT+3

This is an online seminar. To request the event link, please send a message to