33C45 Orthogonal polynomials and functions of hypergeometric type (Jacobi, Laguerre, Hermite, Askey scheme, etc.) [See also 42C05 for general orthogonal polynomials and functions]

33C47 Other special orthogonal polynomials and functions

33C50 Orthogonal polynomials and functions in several variables expressible in terms of special functions in one variable

33C52 Orthogonal polynomials and functions associated with root systems