A bijective proof of a factorization formula for Macdonald polynomials at roots of unity
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Bibliographic record
Abstract
We give a combinatorial proof of the factorization formula of modified Macdonald polynomials $\widetilde{H}_{\lambda} (X;q,t)$ when $t$ is specialized at a primitive root of unity. Our proof is restricted to the special case where $\lambda$ is a two columns partition. We mainly use the combinatorial interpretation of Haiman, Haglund and Loehr giving the expansion of $\widetilde{H}_{\lambda} (X;q,t)$ on the monomial basis. Nous présentons une preuve combinatoire de la formule de factorisation des polynômes de Macdonald modifiés $\widetilde{H}_{\lambda} (X;q,t)$ quand $t$ est spécialisé à une racine primitive de l'unité. Notre preuve se restreint au cas particulier des partitions $\lambda$ n'ayant que deux colonnes. On utilise principalement l'interprétation combinatoire de Haglund, Haiman and Loehr donnant le développement de $\widetilde{H}_{\lambda} (X;q,t)$ sur la base des fonctions monomiales.
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|---|---|---|
| Metaresearch | 0.002 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
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| Science and technology studies | 0.001 | 0.008 |
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| Open science | 0.002 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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