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math.CA2026
Chebyshev polynomials on a Jordan arc
Benedikt Buchecker, Benjamin Eichinger, Olof Rubin +1
We describe the asymptotics of Chebyshev polynomials on an analytic Jordan arc in the plane. This gives an affirmative answer to a conjecture of Christiansen-Simon-Zinchenko, based…
math.CA2024★ 1 cited
Chebyshev polynomials related to Jacobi weights
Jacob S. Christiansen, Olof Rubin
We investigate Chebyshev polynomials corresponding to Jacobi weights and determine monotonicity properties of their related Widom factors. This complements work by Bernstein from 1…
math.CA2023★ 2 cited
Extremal polynomials and polynomial preimages
Jacob S. Christiansen, Benjamin Eichinger, Olof Rubin
This article examines the asymptotic behavior of the Widom factors, denoted , for Chebyshev polynomials of finite unions of Jordan arcs. We prove that, in contrast t…