Computing the minimum rank of a loop directed tree
classification
🧮 math.CO
keywords
minimumrankcomputedirectedgraphtreesalgorithmalgorithms
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The minimum rank of a graph is the minimum possible rank of a real matrix whose zero-nonzero pattern is described by the graph. The current algorithms can compute efficiently the minimum rank of undirected trees. This paper provides an algorithm to compute in polynomial time the minimum rank of directed trees allowing loops.
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