Cataland: Why the Fuss? - Archive ouverte HAL
Communication Dans Un Congrès Discrete Mathematics and Theoretical Computer Science Année : 2020

Cataland: Why the Fuss?

Résumé

The main objects of noncrossing Catalan combinatorics associated to a finite Coxeter system are noncross- ing partitions, sortable elements, and cluster complexes. The first and the third of these have known Fuss–Catalan generalizations. We provide new viewpoints for these, introduce a corresponding generalization of sortable elements as elements in the positive Artin monoid, and show how this perspective ties together all three generalizations.

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Dates et versions

hal-02166329 , version 1 (26-06-2019)

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Christian Stump, Hugh Thomas, Nathan Williams. Cataland: Why the Fuss?. 28-th International Conference on Formal Power Series and Algebraic Combinatorics, Simon Fraser University, Jul 2016, Vancouver, Canada. ⟨10.46298/dmtcs.6351⟩. ⟨hal-02166329⟩
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