The monomial expansions of modified Macdonald polynomials
Combinatorics
2025-07-08 v2 Mathematical Physics
math.MP
Abstract
We discover a family of sixteen statistics on fillings of any given Young diagram and prove new combinatorial formulas for modified Macdonald polynomials, that is, for each statistic . Building upon this new formula, we establish four compact formulas for the modified Macdonald polynomials, namely, which is summed over all canonical or dual canonical fillings of a Young diagram and is a product of -multinomials. Finally, the compact formulas enable us to derive four explicit expressions for the monomial expansion of modified Macdonald polynomials, one of which coincides with the formula given by Garbali and Wheeler (2020).
Keywords
Cite
@article{arxiv.2506.23373,
title = {The monomial expansions of modified Macdonald polynomials},
author = {Emma Yu Jin and Xiaowei Lin},
journal= {arXiv preprint arXiv:2506.23373},
year = {2025}
}
Comments
45 Pages, 3 Figures