2 papers
math.CO2020
Remarks on the structure of simple drawings of
R. Bruce Richter, Matthew Sullivan
In studying properties of simple drawings of the complete graph in the sphere, two natural questions arose for us: can an edge have multiple segments on the boundary of the same fa…
math.CO2019
The unavoidable rotation systems
Alan Arroyo, R. Bruce Richter, Gelasio Salazar +1
For each positive integer , Pach, Solymosi, and Tóth identified two canonical complete topological subgraphs and , and proved that every sufficiently large topologica…