Continuous q-Legendre polynomials

In mathematics, the continuous q-Legendre polynomials are a family of basic hypergeometric orthogonal polynomials in the basic Askey scheme.Koekoek, Lesky & Swarttouw (2010) give a detailed list of their properties.

Definition

The polynomials are given in terms of basic hypergeometric functions by

$P_{n}(x|q)={}_{4}\phi _{3}\left(q^{-n},q^{n+1},q^{\frac {1}{4}}e^{i\theta },q^{\frac {1}{4}}e^{-i\theta };q,-q^{-{\frac {1}{2}}},-q;q,q\right),\quad x=\cos \,\theta .$

References

• Sadjang, Patrick Njionou. Moments of Classical Orthogonal Polynomials (Ph.D.). Universität Kassel. CiteSeerX 10.1.1.643.3896.