Abstract
We prove that a three-term recurrence relation for analytic polynomials orthogonal with respect to harmonic measure in a simply connected domain G exists if and only if ∂G is an ellipse.
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Dovgoshei, A.A. Three-Term Recurrence Relation for Polynomials Orthogonal with Respect to Harmonic Measure. Ukrainian Mathematical Journal 53, 167–177 (2001). https://doi.org/10.1023/A:1010452601011
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DOI: https://doi.org/10.1023/A:1010452601011