4 citations · 12 across the 7 of their papers we have counts for
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math.CO2013★ 3 cited
Minimum ranks of sign patterns via sign vectors and duality
Marina Arav, Frank J. Hall, Zhongshan Li +3
A {\it sign pattern matrix} is a matrix whose entries are from the set . The minimum rank of a sign pattern matrix is the minimum of the ranks of the real matrices…
math.CO2013★ 4 cited
Uniqueness and minimal obstructions for tree-depth
Michael D. Barrus, John Sinkovic
A k-ranking of a graph G is a labeling of the vertices of G with values from {1,...,k} such that any path joining two vertices with the same label contains a vertex having a higher…