Macdonald polynomials and chromatic quasisymmetric functions [article]

James Haglund, Andrew Timothy Wilson
2018 arXiv   pre-print
We express the integral form Macdonald polynomials as a weighted sum of Shareshian and Wachs' chromatic quasisymmetric functions of certain graphs. Then we use known expansions of these chromatic quasisymmetric functions into Schur and power sum symmetric functions to provide Schur and power sum formulas for the integral form Macdonald polynomials. Since the (integral form) Jack polynomials are a specialization of integral form Macdonald polynomials, we obtain analogous formulas for Jack polynomials as corollaries.
arXiv:1701.05622v2 fatcat:cdexduugmvfjtp6zqnirlrt36a