Definition.
Orthogonality. For
and b < 0 we have
Recurrence relation.
where

Normalized recurrence relation.
where

q-Difference equation.
where

and

Forward shift operator.
or equivalently
Backward shift operator.
or equivalently
where

Rodrigues-type formula.
Generating functions.
Remark. The big q-Laguerre polynomials defined by (3.11.1) and the affine q-Krawtchouk polynomials given by (3.16.1) are related in the following way :

References. [13], [27], [228].