K. Hikami, REPRESENTATION OF THE YANGIAN INVARIANT MOTIF AND THE MACDONALD POLYNOMIAL, Journal of physics. A, mathematical and general, 30(7), 1997, pp. 2447-2456
The representation of the Yangian invariant 'motif' is considered. The
relationship with the Rogers-Szego polynomial is studied, whose one-p
arameter deformation is the Macdonald polynomial. We propose the defor
mation of the motifs which provides a new realization of the Macdonald
polynomials for the one-row Young diagrams.