Orthogonal sequences constructed from quasi-orthogonal ultraspherical polynomials

Oksana Bihun, Kathy Driver

Let $\{x_{k,n-1}{\}}_{k=1}^{n-1}$ and $\{x_{k,n}{\}}_{k=1}^n,$ $n\in \mathbb{N}$, be two sets of real, distinct points satisfying the interlacing prope…