The topology of the external activity complex of a matroid
Résumé
We prove that the external activity complex Act<(M) of a matroid is shellable. In fact, we show that every linear extension of Las Vergnas's external/internal order
Domaines
Combinatoire [math.CO]
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Soumis le : jeudi 4 juillet 2019-16:27:38
Dernière modification le : lundi 22 avril 2024-15:01:29
Citer
Federico Ardila, Federico Castillo, Jose Alejandro Samper. The topology of the external activity complex of a matroid. 28-th International Conference on Formal Power Series and Algebraic Combinatorics, Simon Fraser University, Jul 2016, Vancouver, Canada. ⟨10.46298/dmtcs.6355⟩. ⟨hal-02173754⟩
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