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Results for polyhedral combinatorics

Publications & Outputs

  1. New valid inequalities for the fixed-charge and single-node flow polytopes

    Letchford, A. & Souli, G., 1/09/2019, In : Operations Research Letters. 47, 5, p. 353-357 5 p.

    Research output: Contribution to journalJournal article

  2. On lifted cover inequalities: a new lifting procedure with unusual properties

    Letchford, A. N. & Souli, G., 17/01/2019, In : Operations Research Letters. 47, 2, p. 83-88 6 p.

    Research output: Contribution to journalJournal article

  3. New valid inequalities and facets for the simple plant location problem

    Galli, L., Letchford, A. N. & Miller, S., 16/09/2018, In : European Journal of Operational Research. 269, 3, p. 824-833 10 p.

    Research output: Contribution to journalJournal article

  4. A note on the 2-circulant inequalities for the max-cut problem

    Kaparis, K. & Letchford, A. N., 07/2018, In : Operations Research Letters. 46, 4, p. 443-447 5 p.

    Research output: Contribution to journalJournal article

  5. A two-level graph partitioning problem arising in mobile wireless communications

    Fairbrother, J., Letchford, A. N. & Briggs, K., 04/2018, In : Computational Optimization and Applications. 69, 3, p. 653-676 24 p.

    Research output: Contribution to journalJournal article

  6. Stronger multi-commodity flow formulations of the (capacitated) sequential ordering problem

    Letchford, A. & Salazar Gonzalez, J. J., 16/05/2016, In : European Journal of Operational Research. 251, 1, p. 74-84 11 p.

    Research output: Contribution to journalJournal article

  7. A new separation algorithm for the Boolean quadric and cut polytopes

    Letchford, A. & Sorensen, M. M., 2/08/2014, In : Discrete Optimization. 14, p. 61-71 11 p.

    Research output: Contribution to journalJournal article

  8. Unbounded convex sets for non-convex mixed-integer quadratic programming

    Burer, S. & Letchford, A., 1/02/2014, In : Mathematical Programming. 143, 1-2, p. 231-256 26 p.

    Research output: Contribution to journalJournal article

  9. A polyhedral approach to the single row facility layout problem

    Amaral, A. R. S. & Letchford, A., 10/2013, In : Mathematical Programming. 141, 1-2, p. 453-477 25 p.

    Research output: Contribution to journalJournal article

  10. A new separation algorithm for the Boolean quadric and cut polytopes

    Letchford, A., 08/2012.

    Research output: Contribution to conference - Without ISBN/ISSN Conference paper

  11. A polyhedral approach to the single-row facility layout problem

    Letchford, A., 03/2012.

    Research output: Contribution to conference - Without ISBN/ISSN Conference paper

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  1. Cutting-Plane Approaches to Integer Programming

    Letchford, A., Amaral, A., Caprara, A., Fischetti, M. & Lodi, A.

    1/01/97 → …

    Project: NonFunded ProjectResearch