The paper gives a complete classification of A2, B2, and B2-prime contiguity relations for the finite Askey scheme families, and proves all A2 relations are Christoffel or Geronimus transforms.
$q$-deformed Griffiths polynomials of Racah type
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
New bivariate Griffiths polynomials of $q$-Racah type are introduced and characterized. They generalize the polynomials orthogonal on the multinomial distribution introduced by R. Griffiths fifty years ago. They also correspond to a $q$-deformation of the Griffiths polynomials of Racah type introduced previously by the authors and collaborators. The latter are recovered from the former by a $q\to1$ limit. We show that these new polynomials are bispectral and biorthogonal. We also exhibit some symmetry relations that are essential in the proof of the bispectrality property.
fields
math.CA 1years
2025 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
Contiguity relations for finite families of orthogonal polynomials in the Askey scheme
The paper gives a complete classification of A2, B2, and B2-prime contiguity relations for the finite Askey scheme families, and proves all A2 relations are Christoffel or Geronimus transforms.