Sara Billey ; Alexander Holroyd ; Benjamin Young
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A bijective proof of Macdonald's reduced word formula
dmtcs:6412 -
Discrete Mathematics & Theoretical Computer Science,
April 22, 2020,
DMTCS Proceedings, 28th International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2016)
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https://doi.org/10.46298/dmtcs.6412
A bijective proof of Macdonald's reduced word formulaArticle
Authors: Sara Billey 1; Alexander Holroyd 2; Benjamin Young 3
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Sara Billey;Alexander Holroyd;Benjamin Young
1 Department of Mathematics [Seattle]
2 Microsoft Research [Redmond]
3 Department of Mathematics, University of Oregon [Eugene]
We describe a bijective proof of Macdonald's reduced word identity using pipe dreams and Little's bumping algorithm. The proof extends to a principal specialization of the identity due to Fomin and Stanley. Our bijective tools also allow us to address a problem posed by Fomin and Kirillov from 1997, using work of Wachs, Lenart and Serrano- Stump.