Christoffel formula for kernel polynomials on the unit circle

Finally, examples are considered, such as the Geronimus weight (a measure supported on an arc of T), a measure for which the Christoffel-Darboux kernels, with w=1, are given by basic hypergeometric polynomials and a measure for which the orthogonal polynomials and the Christoffel-Darboux kernels, again with w=1, are given by hypergeometric polynomials.