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The Rise-Contact involution on Tamari intervals

Viviane Pons 1
1 GALaC - LRI - Graphes, Algorithmes et Combinatoire (LRI)
LRI - Laboratoire de Recherche en Informatique
Abstract : We describe an involution on Tamari intervals and m-Tamari intervals. This involution switches two sets of statistics known as the "rises" and the "contacts" and so proves an open conjecture from Préville-Ratelle on intervals of the m-Tamari lattice.
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Submitted on : Monday, June 3, 2019 - 1:54:54 PM
Last modification on : Thursday, July 8, 2021 - 3:50:37 AM


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  • HAL Id : hal-02145887, version 1


Viviane Pons. The Rise-Contact involution on Tamari intervals. The Electronic Journal of Combinatorics, Open Journal Systems, 2019. ⟨hal-02145887⟩



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