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Paper detail

Convex $(0,1)$-Matrices and Their Epitopes

We investigate $(0,1)$-matrices that are {\em convex}, which means that the ones are consecutive in every row and column. These matrices occur in discrete tomography. The notion of ranked essential sets, known for permutation matrices, is extended to convex sets. We show a number of results for the class $\mc{C}(R,S)$ of convex matrices with given row and column sum vectors $R$ and $S$. Also, it is shown that the ranked essential set uniquely determines a matrix in $\mc{C}(R,S)$.

preprint2021arXivOpen access
Richard A. BrualdiGeir Dahl
math.CO
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Richard A. BrualdiGeir Dahl

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