Orthogonal Polynomials and Linear Functionals

An Algebraic Approach and Applications

  • Juan Carlos García-Ardila

    Universidad Politécnica de Madrid, Spain
  • Francisco Marcellán

    Universidad Carlos III de Madrid, Spain
  • Misael E. Marriaga

    Universidad Rey Juan Carlos, Madrid, Spain
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This book presents an introduction to orthogonal polynomials, with an algebraic flavor, based on linear functionals defining the orthogonality and the Jacobi matrices associated with them. Basic properties of their zeros as well as quadrature rules are discussed. A key point is the analysis of those functionals satisfying Pearson equations (semiclassical case) and the hierarchy based on their class.

The book's structure reflects the fact that its content is based on a set of lectures delivered by one of the authors at the first Orthonet Summer School in Seville, Spain in 2016. The presentation of the material is self-contained and will be valuable to students and researchers interested in a novel approach to the study of orthogonal polynomials, focusing on their analytic properties.