# Emily Sergel

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- Jobby Jacob, Darren A. Narayan, Peter Richter, Emily Sergel, Anh Tran
- Discussiones Mathematicae Graph Theory
- 2014

A ranking on a graph is an assignment of positive integers to its vertices such that any path between two vertices with the same label contains a vertex with a larger label. The rank number of a graph is the fewest number of labels that can be used in a ranking. The rank number of a graph is known for many families, including the ladder graph P 2 × P n. We… (More)

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