104 citations · 123 across the 18 of their papers we have counts for
24 papers · 1 filter
Chip-firing and critical groups of signed graphs
Matthew Cho, Anton Dochtermann, Ryota Inagaki +3
We study chip-firing on a signed graph , employing a general theory of chip-firing on invertible matrices introduced by Guzmán and Klivans. Here a negative edge designates an…
Demazure product of permutations and hopping
Tina Li, Suho Oh, Edward Richmond +2
The Demazure product (also goes by the name of 0-Hecke product or the greedy product) is an associative operation on Coxeter groups with interesting properties and important applic…
The parabolic coset structure of Bruhat intervals in Coxeter groups
Suho Oh, Edward Richmond
In this paper, we study the decomposition of Bruhat intervals in a Coxeter group with respect to cosets of a parabolic subgroup. Our main result is that the intersection of a lower…
Triconed Graphs, weighted forests, and h-vectors of matroid complexes
Jacob David, Pierce Lai, SuHo Oh +1
A well-known conjecture of Stanley is that the h-vector of a matroid is a pure O-sequence. There have been numerous papers with partial progress on this conjecture, but it is still…
Completing and extending shellings of vertex decomposable complexes
Michaela Coleman, Anton Dochtermann, Nathan Geist +1
We say that a pure -dimensional simplicial complex on vertices is \emph{shelling completable} if can be realized as the initial sequence of some shelling of $Δ_{n-1}…
Tableau Stabilization and Lattice Paths
Connor Ahlbach, Jacob David, Suho Oh +1
If one attaches shifted copies of a skew tableau to the right of itself and rectifies, at a certain point the copies no longer experience vertical slides, a phenomenon called table…