3 papers
math.CV2026
Weighted residual polynomials on a circular arc
Jacob S. Christiansen, Benjamin Eichinger, Olof Rubin +1
We study the behavior of weighted residual polynomials on circular arcs, including weighted Chebyshev polynomials. For weights given by reciprocals of polynomials, we establish Sze…
math.CA2025
Asymptotics of extremal polynomials for on Jordan regions
Benedikt Buchecker, Benjamin Eichinger, Maxim Zinchenko
We study strong asymptotics of -extremal polynomials for measures supported on Jordan regions with boundary for . Using the results for , we derive a…
math.CA2024
Lower Bounds for Weighted Chebyshev and Orthogonal Polynomials
Gökalp Alpan, Maxim Zinchenko
We derive optimal asymptotic and non-asymptotic lower bounds on the Widom factors for weighted Chebyshev and orthogonal polynomials on compact subsets of the real line. In the Cheb…