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@inproceedings{Johnson2011ElaCF, title={Ela Conditions for a Totally Positive Completion in the Case of a Symmetrically Placed Cycle}, author={Charles R. Johnson and Brenda Kroschel}, year={2011} }

- Published 2011

Abstract. In earlier work, the labelled graphs G for which every combinatorially symmetric totally nonnegative matrix, the graph of whose specified entries is G, has a totally nonnegative completion were identified. For other graphs, additional conditions on the specified data must hold. Here, necessary and sufficient conditions on the specified data, when… CONTINUE READING

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