Abstract
This note refers to the article by G. Ghiani and G. Laporte ``A branch-and-cut algorithm for the Undirected Rural Postman Problem'', Math. Program. 87 (2000). We show that some conditions for the facet-defining property of the basic non-trivial inequalities are not sufficient and that the Rural Postman Problem polytope is more complex even when focusing on canonical inequalities only.
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Reinelt, G., Theis, D. A note on the Undirected Rural Postman Problem polytope. Math. Program. 106, 447–452 (2006). https://doi.org/10.1007/s10107-005-0640-1
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DOI: https://doi.org/10.1007/s10107-005-0640-1