Orthogonal polynomials in several variables for measures with mass points

A. M. Delgado, L. Fernandez, T. E. Perez +2

Let $d\nu$ be a measure in ${\mathbb{R}}^d$ obtained from adding a set of mass points to another measure $d\mu$. Orthogonal polynomials in several variables associated with $d\nu$ can be e…