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Total dual integrality implies local strong unimodularity

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Abstract

We prove that any totally dual integral description of a full-dimensional polyhedron is locally strongly unimodular in every vertex.

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The research of the first author was partly supported by the Netherlands Organization for the Advancement of Pure Research (ZWO).

This note was written while the second author visited the Institute für Ökonometrie und Operations Research, and was supported by Sonderforschungsbereich 303 (DFG).

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Gerards, A.M.H., Sebő, A. Total dual integrality implies local strong unimodularity. Mathematical Programming 38, 69–73 (1987). https://doi.org/10.1007/BF02591852

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  • DOI: https://doi.org/10.1007/BF02591852

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