Abstract
We briefly review some asymptotics of orthonormal polynomials. Then we derive the Bernstein–Szegő, the Riemann–Hilbert (or Fokas–Its–Kitaev), and Rakhmanov projection identities for orthogonal polynomials and attempt a comparison of their applications in asymptotics.
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Lubinsky, D.S. Asymptotics of Orthogonal Polynomials: Some Old, Some New, Some Identities. Acta Applicandae Mathematicae 61, 207–256 (2000). https://doi.org/10.1023/A:1006470603390
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DOI: https://doi.org/10.1023/A:1006470603390