English

Asymptotics of orthogonal polynomials beyond the scope of Szego's theorem

Functional Analysis 2016-09-07 v1 Spectral Theory

Abstract

First we give here a simple proof of a remarkable result of Videnskii and Shirokov: let BB be a Blaschke product with nn zeros, then there exists an outer function ϕ,ϕ(0)=1\phi, \phi(0)=1, such that (Bϕ)Cn\|(B\phi)'\| \leq C n, where CC is an absolute constant. Then we apply this result to a certain problem of finding the asymptotic of orthogonal polynomials.

Keywords

Cite

@article{arxiv.math/0508544,
  title  = {Asymptotics of orthogonal polynomials beyond the scope of Szego's theorem},
  author = {F. Peherstorfer and A. Volberg and P. Yuditskii},
  journal= {arXiv preprint arXiv:math/0508544},
  year   = {2016}
}