2 papers
math.CO2014
Many disjoint edges in topological graphs
Andres J. Ruiz-Vargas
A monotone cylindrical graph is a topological graph drawn on an open cylinder with an infinite vertical axis satisfying the condition that every vertical line intersects every edge…
math.CO2014
Disjoint edges in topological graphs and the tangled-thrackle conjecture
Andres J. Ruiz-Vargas, Andrew Suk, Csaba D. Tóth
It is shown that for a constant , every simple topological graph on vertices has edges if it has no two sets of edges such that every edge in one se…