Orthogonal polynomials for exponential weights x2 ρ e- 2 Q ( x ) on [ 0, d ), II

Eli Levin, Doron Lubinsky

Research output: Contribution to journalArticlepeer-review

Abstract

Let I = [ 0, d ), where d is finite or infinite. Let Wρ fenced(x) = xρ exp fenced(- Q fenced(x)), where ρ > - frac(1, 2) and Q is continuous and increasing on I, with limit ∞ at d. We obtain further bounds on the orthonormal polynomials associated with the weight Wρ2, finer spacing on their zeros, and estimates of their associated fundamental polynomials of Lagrange interpolation. In addition, we obtain weighted Markov and Bernstein inequalities.

Original languageEnglish
Pages (from-to)107-143
Number of pages37
JournalJournal of Approximation Theory
Volume139
Issue number1-2
DOIs
StatePublished - Mar 2006

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