In mathematics, the ''q''-Charlier polynomialsThere are similar named polynomials named alternative q-Charlier polynomials

K_n(x;a;q)

which is another name for q-Bessel polynomials. are a family of basic hypergeometric

orthogonal polynomials In mathematics, an orthogonal polynomial sequence is a family of polynomials such that any two different polynomials in the sequence are orthogonality, orthogonal to each other under some inner product. The most widely used orthogonal polynomial ...

in the basic

Askey scheme In mathematics, the Askey scheme is a way of organizing orthogonal polynomials of hypergeometric or basic hypergeometric type into a hierarchy. For the classical orthogonal polynomials discussed in , the Askey scheme was first drawn by and by , ...

. give a detailed list of their properties.

Definition

The polynomials are given in terms of the

basic hypergeometric function In mathematics, basic hypergeometric series, or ''q''-hypergeometric series, are ''q''-analogue generalizations of generalized hypergeometric series, and are in turn generalized by elliptic hypergeometric series. A series ''x'n'' is called h ...

by :

\displaystyle C_n(q^;a;q) = _2\phi_1(q^,q^;0;q,-q^/a).

References

* * * *{{cite thesis , last=Sadjang , first=Patrick Njionou , title=Moments of Classical Orthogonal Polynomials , type=Ph.D. , publisher=Universität Kassel , citeseerx=10.1.1.643.3896 Orthogonal polynomials Q-analogs Special hypergeometric functions