Dual addition formulas the case of continuous q-ultraspherical and q-Hermite polynomials

Open Access
Authors
Publication date 06-2023
Journal The Ramanujan Journal
Volume | Issue number 61 | 2
Pages (from-to) 425-444
Organisations
  • Faculty of Science (FNWI) - Korteweg-de Vries Institute for Mathematics (KdVI)
Abstract We settle the dual addition formula for continuous q-ultraspherical polynomials as an expansion in terms of special q-Racah polynomials for which the constant term is given by the linearization formula for the continuous q-ultraspherical polynomials. In a second proof we derive the dual addition formula from the Rahman–Verma addition formula for these polynomials by using the self-duality of the polynomials. We also consider the limit case of continuous q-Hermite polynomials.
Document type Article
Language English
Published at https://doi.org/10.1007/s11139-021-00426-7
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