2 papers
math.AC2010
On integer radii coin representations of the wheel graph
Geir Agnarsson, Jill Bigley Dunham
A {\em flower} is a coin graph representation of the wheel graph. A {\em petal} of the wheel graph is an edge to the center vertex. In this paper we investigate flowers whose coins…
math.CO2009
On the maximum number of edges of non-flowerable coin graphs
Geir Agnarsson, Jill Bigley Dunham
For $n\in\nats$ and we compute the exact value of , the maximum number of edges of a simple planar graph on vertices where each vertex bounds an -…