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Professor Adam Letchford

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  1. Published

    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 Journal/Magazine › Journal article › peer-review

  2. Published

    Action rules extracted by machine induction from feature-coded self reports

    Letchford, A. N. & Clarke, D. D., 1998, In: Journal of Social Behavior and Personality. 13, p. 33-50 18 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  3. Published

    Adaptive policies for perimeter surveillance problems

    Grant, J. A., Leslie, D. S., Glazebrook, K., Szechtman, R. & Letchford, A., 16/05/2020, In: European Journal of Operational Research. 283, 1, p. 265-278 14 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  4. Published

    Allocation of school bus contracts by integer programming

    Letchford, A. N., 1996, In: Journal of the Operational Research Society. 47, 3, p. 369-372 4 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  5. Published

    An aggressive reduction scheme for the simple plant location problem

    Letchford, A. & Miller, S., 1/05/2014, In: European Journal of Operational Research. 234, 3, p. 674-682 9 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  6. Published

    An application of the Lovasz-Schrijver M(K,K) operator to the stable set problem

    Giandomenico, M., Letchford, A. N., Rossi, F. & Smriglio, S., 2009, In: Mathematical Programming. 120, 2, p. 381-401 21 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  7. Published

    An augment-and-branch-and-cut framework for mixed 0-1 programming

    Letchford, A. N. & Lodi, A., 2003, Combinatorial Optimization : Eureka! You Shrink. Jünger, M., Reinelt, G. & Rinaldi, G. (eds.). Berlin: Springer, p. 119-133 15 p. (Lecture Notes in Computer Science ; vol. 2570).

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter (peer-reviewed) › peer-review

  8. Published

    An exact algorithm for a resource allocation problem in mobile wireless communications

    Letchford, A. N., Ni, Q. & Zhong, Z., 09/2017, In: Computational Optimization and Applications. 68, 2, p. 193-208 16 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  9. Published

    Analysis of upper bounds for the pallet loading problem

    Letchford, A. N. & Amaral, A. R. S., 2001, In: European Journal of Operational Research. 132, 3, p. 582-593 12 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  10. Published

    Approximating the Lovász θ function with the subgradient method

    Giandomenico, M., Letchford, A. N., Rossi, F. & Smriglio, S., 5/06/2013, In: Electronic Notes in Discrete Mathematics. 41, p. 157-164 8 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  11. Published

    Arc routing problems

    Eglese, R. & Letchford, A., 10/02/2024, Encyclopedia of Optimization. Pardalos, P. & Prokopyev, O. (eds.). 3rd ed. Cham: Springer, 6 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Entry for encyclopedia/dictionary

  12. Published

    Binary clutter inequalities for integer programs

    Letchford, A. N., 2002, Lancaster University: The Department of Management Science, (Management Science Working Paper Series).

    Research output: Working paper

  13. Published

    Binary clutter inequalities for integer programs

    Letchford, A. N., 2003, In: Mathematical Programming. 98, 1-3, p. 201-221 21 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  14. Published

    Binary positive semidefinite matrices and associated integer polytopes

    Letchford, A. N. & Sorensen, M. M., 2008, Integer Programming and Combinatorial Optimization : Proceedings of the 13th International IPCO Conference. Lodi, A., Panconesi, A. & Rinaldi, G. (eds.). Berlin: Springer, p. 125-139 15 p. (Lecture Notes in Computer Science; vol. 5035).

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter (peer-reviewed) › peer-review

  15. Published

    Binary positive semidefinite matrices and associated integer polytopes

    Letchford, A. N. & Sorensen, M. M., 02/2012, In: Mathematical Programming. 131, 1-2, p. 253-271 19 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  16. Published

    Bi-perspective cuts for mixed-integer fractional programs with indicator variables

    Letchford, A., 07/2018.

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

  17. Published

    Biperspective functions for mixed-integer fractional programs with indicator variables

    Letchford, A., Ni, Q. & Zhong, Z., 30/11/2021, In: Mathematical Programming. 190, 1-2, p. 39-55 17 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  18. Published

    Compact formulations of the Steiner traveling salesman problem and related problems

    Letchford, A. & Nasiri, S. D., 2013, In: European Journal of Operational Research. 228, 1, p. 83-92 10 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  19. Published

    Complexity results for the gap inequalities for the max-cut problem

    Galli, L., Kaparis, K. & Letchford, A. N., 05/2012, In: Operations Research Letters. 40, 3, p. 149-152 4 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  20. Published

    Computing compatible tours for the traveling salesman problem

    Fortini, M., Letchford, A. N., Lodi, A. & Wenger, K. M., 2011, In: Mathematical Programming Computation. 3, 1, p. 59-78 20 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  21. Published

    Computing good allocations for combinatorial optimization games

    Caprara, A. & Letchford, A. N., 2005, Lancaster University: The Department of Management Science, (Management Science Working Paper Series).

    Research output: Working paper

  22. Published

    Computing upper bounds for the stable set problem using Lagrangian relaxation

    Letchford, A., 05/2013.

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

  23. Published

    Convex hulls for mixed-integer quadratic programs with bounded variables

    Letchford, A., 09/2019.

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

  24. Published

    Cover Inequalities

    Kaparis, K. & Letchford, A. N., 02/2011, Wiley Encyclopedia of Operations Research and Management Science. Cochran, J. J., Cox, L. A., Keskinocak, P., Kharoufeh, J. P. & Smith, J. C. (eds.). Wiley

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Entry for encyclopedia/dictionary

  25. Published

    CP-Lib: Benchmark instances of the clique partitioning problem

    Sorensen, M. & Letchford, A., 1/03/2024, In: Mathematical Programming Computation. 16, 1, p. 93-111 19 p., 1.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

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