Continuous dual q-Hahn polynomials

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In mathematics, the continuous dual q-Hahn polynomials are a family of basic hypergeometric orthogonal polynomials in the basic Askey scheme. Roelof Koekoek, Peter A. Lesky, and René F. Swarttouw (2010, 14) give a detailed list of their properties.

Definition

The polynomials are given in terms of basic hypergeometric functions and the q-Pochhammer symbol by [1]

[math]\displaystyle{ p_n(x;a,b,c\mid q)=\frac{(ab,ac;q)_n}{a^n}{_3\phi_2}(q^{-n},ae^{i\theta},ae^{-i\theta}; ab, ac \mid q;q) }[/math]

In which [math]\displaystyle{ x=\cos(\theta) }[/math]

Gallery

Continuous dual qHahn function abs complex3D Maple PLOT.gif
Continuous dual qHahn function re complex3D Maple PLOT.gif
Continuous dual qHahn function Im complex3D Maple PLOT.gif
Continuous dual qHahn function RE density Maple PLOT.gif
Continuous dual qHahn function Im density Maple PLOT.gif
Continuous dual qHahn function ABS density Maple PLOT.gif

References

  1. Mesuma Atakishiyeva, Natig Atakishieyev, A NON STANDARD GENERATING FUNCTION FOR CONTINUOUS DUAL Q-HAHN POLYNOMIALS, REVISTA DE MATEMATICA 2011 18(1):111-120