3 papers
math.CO2025
Ornamentation lattices and intreeval hypergraphic lattices
Antoine Abram, Jose Bastidas, Félix Gélinas +2
Given a directed graph with transitive closure and path hypergraph , we study the connections between the (acyclic) reorientation poset of…
math.CO2023
Poset Associahedra and Stack-sorting
Son Nguyen, Andrew Sack
For any finite connected poset , Galashin introduced a simple convex -dimensional polytope called the poset associahedron. For a certain family of pose…
math.CO2023
The poset associahedron -vector is a comparability invariant
Son Nguyen, Andrew Sack
We show that the -vector of Galashin's poset associahedron only depends on the comparability graph of . In particular, this allows us to produce a family of p…