Linearization of the product of orthogonal polynomials of a discrete variable
Tom 24 / 1997
Applicationes Mathematicae 24 (1997), 445-455
DOI: 10.4064/am-24-4-445-455
Streszczenie
Let {} be any sequence of classical orthogonal polynomials of a discrete variable. We give explicitly a recurrence relation (in k) for the coefficients in P_iP_j=\sum_kc(i,j,k)P_k, in terms of the coefficients σ and τ of the Pearson equation satisfied by the weight function ϱ, and the coefficients of the three-term recurrence relation and of two structure relations obeyed by {P_k}.
