  Combinatorial objects called rigged configurations give rise to q-analogues
of certain Littlewood-Richardson coefficients. The Kostka-Foulkes polynomials
and two-column Macdonald-Kostka polynomials occur as special cases.
Conjecturally these polynomials coincide with the Poincare polynomials of
isotypic components of certain graded GL(n)-modules supported in a nilpotent
conjugacy class closure in gl(n).
