  The wave functions of quantum Calogero-Sutherland systems for trigonometric
case are related to polynomials in l variables (l is a rank of root system) and
they are the generalization of Gegenbauer polynomials and Jack polynomials.
Using the technique of \kappa-deformation of Clebsch-Gordan series developed in
previous authors papers we investigate some new properties of generalized
Gegenbauer polynomials.Note that similar results are also valid in A_2 case for
more general two-parameter deformation ((q,t)-deformation) introduced by
Macdonald.
