Son Nguyen

collaborators

2 papers

math.CO2023

Poset Associahedra and Stack-sorting

Son Nguyen, Andrew Sack

For any finite connected poset $P$ , Galashin introduced a simple convex $(∣ P ∣ - 2)$ -dimensional polytope $A (P)$ called the poset associahedron. For a certain family of pose…

math.CO2023

The poset associahedron $f$ -vector is a comparability invariant

Son Nguyen, Andrew Sack

We show that the $f$ -vector of Galashin's poset associahedron $A (P)$ only depends on the comparability graph of $P$ . In particular, this allows us to produce a family of p…

Poset Associahedra and Stack-sorting

The poset associahedron f-vector is a comparability invariant

The poset associahedron $f$ -vector is a comparability invariant