Showing 2024Show all
2 papers · 1 filter
math.CO2024
Counting Triangles in Triangles
Jim Propp, Adam Propp-Gubin
We give a formula for counting the triangles in a picture consisting of the three sides of a triangle and some cevians. This lets us prove statements that are claimed without proof…
math.CO2024
Tilings of Benzels via Generalized Compression
Colin Defant, Leigh Foster, Rupert Li +2
Defant, Li, Propp, and Young recently resolved two enumerative conjectures of Propp concerning the tilings of regions in the hexagonal grid called benzels using two types of protot…