English

Dual forms of the orthogonality relations of some classical q-orthogonal polynomials

Combinatorics 2024-12-02 v2

Abstract

In this paper, by introducing new matrix operations and using a specific inverse relation, we establish the dual forms of the orthogonality relations for some well-known discrete and continuous qq-orthogonal polynomials from the Askey-scheme such as the little and big qq-Jacobi, qq-Racah, (generalized) qq-Laguerre, as well as the Askey-Wilson polynomials. As one of the most interesting results, we show that the Askey-Wilson qq-beta integral represented in terms of the VWP-balanced 8ϕ7\,_8\phi_7 series is just a dual form of the orthogonality relation of the Askey-Wilson polynomials.

Keywords

Cite

@article{arxiv.2207.13563,
  title  = {Dual forms of the orthogonality relations of some classical q-orthogonal polynomials},
  author = {Qi Chen and Xinrong Ma and Jin Wang},
  journal= {arXiv preprint arXiv:2207.13563},
  year   = {2024}
}