10 citations · 12 across the 6 of their papers we have counts for
Showing 2020Show all
3 papers · 1 filter
math.CO2020
Searching for quicksand ideals in partially ordered sets
Alexas Iams, Hannah Johnston, Robert Muth
We consider a combinatorial question about searching for an unknown ideal within a known poset . Elements of may be queried for membership in , but at most positi…
math.CO2020
Cuspidal ribbon tableaux in affine type A
Dina Abbasian, Lena Difulvio, Robert Muth +3
For any convex preorder on the set of positive roots of affine type A, we classify and construct all associated cuspidal and semicuspidal skew shapes. These combinatorial objects c…
math.CO2020
Cooperative half-guards in art galleries
Daniel Florentino, Ethan Moy, Robert Muth
In any simple polygonal art gallery with n walls, we show that it is possible to place floor(n/2)-1 guards whose range of vision is 180 degrees in such a way that every interior po…