A kicking basis for the two-column Garsia-Haiman modules

Details A kicking basis for the two-column Garsia-Haiman modules A kicking basis for the two-column Garsia-Haiman modules

2009-05-14

arxiv.org/abs/0905.2333v1

Mathematics

Combinatorics

14 pages, 7 figures, to appear in DMTCS as part of the conference proceedings for FPSAC 2009

Scientific paper

In the early 1990s, Garsia and Haiman conjectured that the dimension of the Garsia-Haiman module is n!, and they showed that the resolution of this conjecture implies the Macdonald Positivity Conjecture. Haiman proved these conjectures in 2001 using algebraic geometry, but the question remains to find an explicit basis for the module which would give a simple proof of the dimension. Using the theory of Orbit Harmonics developed by Garsia and Haiman, we present a "kicking basis" for Garsia-Haiman modules indexed by a partition with at most two columns.

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