We develop a factorization method for q-Racah polynomials. It is inspired by the approach to q-Hahn polynomials based on the q-Johnson scheme, but we do not use association scheme theory nor Gel'fand pairs but only manipulation of q-difference operators.
A factorization method for q-Racah polynomials / Scarabotti, Fabio. - In: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS. - ISSN 1023-6198. - STAMPA. - 18:12(2012), pp. 2019-2038. [10.1080/10236198.2011.609170]