Publications & Outputs - Research Portal

Publications and Research Outputs

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Published
Separating a superclass of comb inequalities in planar graphs
Letchford, A. N., 2000, In: Mathematics of Operations Research. 25, 3, p. 443-454 12 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
The general routing polyhedron: a unifying framework
Letchford, A. N., 1/01/1999, In: European Journal of Operational Research. 112, 1, p. 122-133 12 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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
Published
New inequalities for the general routing problem
Letchford, A. N., 24/01/1997, In: European Journal of Operational Research. 96, 2, p. 317-322 6 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
The general routing problem
Letchford, A. N. & Eglese, R. W., 2001, Encyclopedia of Optimization, Vol II (E - Integer). Floudas, C. H. & Pardalos, P. M. (eds.). Dordrecht: Kluwer Academic Publishers, p. 206-207 2 p.
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Entry for encyclopedia/dictionary
Published
Totally tight Chvatal-Gomory cuts
Letchford, A. N., 2002, In: Operations Research Letters. 30, 2, p. 71-73 3 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Strengthening Chvatal-Gomory cuts and Gomory fractional cuts
Letchford, A. N. & Lodi, A., 04/2002, In: Operations Research Letters. 30, 2, p. 74-82 9 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
On disjunctive cuts for combinatorial optimization
Letchford, A. N., 09/2001, In: Journal of Combinatorial Optimization. 5, 3, p. 299-315 17 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Primal cutting plane algorithms revisited
Letchford, A. N. & Lodi, A., 08/2002, In: Mathematical Methods of Operational Research. 56, 1, p. 67-81 15 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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
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
Published
Primal separation algorithms
Letchford, A. N. & Lodi, A., 10/2003, In: 4OR: A Quarterly Journal of Operations Research. 1, 3, p. 209-224 16 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
A new branch-and-cut algorithm for the capacitated vehicle routing problem
Letchford, A. N., Eglese, R. W. & Lysgaard, J., 2004, In: Mathematical Programming. 100, 2, p. 423-445 23 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
A faster exact separation algorithm for blossom inequalities
Letchford, A. N., Reinelt, G. & Theis, D. O., 2004, Integer Programming and Combinatorial Optimization : Proceedings of the 10th International IPCO Conference. Nemhauser, G. & Bienstock, D. (eds.). Berlin: Springer, p. 19-52 34 p. (Lecture Notes in Computer Science; vol. 3064).
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter (peer-reviewed)
Published
A fast algorithm for minimum weight odd cuts and circuits in planar graphs
Letchford, A. N. & Pearson, N., 2005, In: Operations Research Letters. 33, 6, p. 625-628 4 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Projection results for vehicle routing
Letchford, A. N. & Salazar, J. J., 2006, In: Mathematical Programming. 105, 2-3, p. 251-274 24 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Exploiting planarity in separation routines for the symmetric travelling salesman problem
Letchford, A. N. & Pearson, N., 2005, Lancaster University: The Department of Management Science, (Management Science Working Paper Series).
Research output: Working paper
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
Published
Review of "Introduction to the Theory of Cooperative Games"
Letchford, A. N., 2004, In: Journal of the Operational Research Society. 55, 7, p. 787-788 2 p.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "The Vehicle Routing Problem"
Letchford, A. N., 07/2004, In: Operations Research Letters. 32, 4, p. 392-393 2 p.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "Approximation Algorithms"
Letchford, A. N., 07/2002, In: Journal of the Operational Research Society. 53, 7, p. 807-808 2 p.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "Model Building in Mathematical Programming"
Letchford, A. N., 2000, In: Journal of the Operational Research Society. 51, 10, p. 1212-1213 2 p.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Odd minimum cut-sets and b-matchings revisited
Letchford, A. N., Reinelt, G. & Theis, D. O., 2008, In: SIAM Journal on Discrete Mathematics. 22, 4, p. 1480-1487 8 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Review of "Optimization with binet matrices"
Letchford, A. N., 2007, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
A branch-and-cut algorithm for the capacitated open vehicle routing problem
Letchford, A. N., Lysgaard, J. & Eglese, R. W., 2006, Lancaster University: The Department of Management Science, (Management Science Working Paper Series).
Research output: Working paper
Published
Review of "Theory of Linear and Integer Programming"
Letchford, A. N., 2000, In: Journal of the Operational Research Society. 51, 7, p. 892-893 2 p.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Good triangulations yield good tours
Letchford, A. N. & Pearson, N., 2008, In: Computers and Operations Research. 35, 2, p. 638-647 10 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Exploiting planarity in separation routines for the symmetric travelling salesman problem
Letchford, A. N. & Pearson, N., 2008, In: Discrete Optimization. 5, 2, p. 220-230 11 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
A branch-and-cut algorithm for the capacitated open vehicle routing problem
Letchford, A. N., Lysgaard, J. & Eglese, R. W., 2007, In: Journal of the Operational Research Society. 58, 12, p. 1642-1651 10 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
The traveling salesman problem: a book review
Letchford, A. N. & Lodi, A., 12/2007, In: 4OR: A Quarterly Journal of Operations Research. 5, 4, p. 315-317 3 p.
Research output: Contribution to Journal/Magazine › Book/Film/Article review
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
Published
Review of "A new min-cut max-flow ratio for multicommodity flows"
Letchford, A. N., 2007, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "Using mixed-integer programming to solve power grid blackout problems"
Letchford, A. N., 2007, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "Integer programming formulations for the two 4-hop constrained paths problem"
Letchford, A. N., 2007, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Exploiting sparsity in pricing routines for the capacitated arc routing problem
Letchford, A. N. & Oukil, A., 2009, In: Computers and Operations Research. 36, 7, p. 2320-2327 8 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Review of "Projected Chvátal-Gomory cuts for mixed integer linear programs"
Letchford, A. N., 2008, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "On clique separators, nearly chordal graphs and the maximum weight stable set problem"
Letchford, A. N., 2008, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "A branch-and-cut algorithm for a resource-constrained scheduling problem"
Letchford, A. N., 2008, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "New cutting-planes for the time and/or precedence-constrained ATSP and directed VRP"
Letchford, A. N., 2008, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "Using critical sets to solve the maximum independent set problem"
Letchford, A. N., 2007, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "Local cuts revisited"
Letchford, A. N., 2009, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "FPTAS for optimizing polynomials over the mixed-integar points of polytopes in fixed dimension"
Letchford, A. N., 2008, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Mathematical programming approaches to the traveling salesman problem
Letchford, A. N. & Lodi, A., 2011, Wiley Encyclopedia of Operations Research and Management Science. Cochran, J. J., Cox, L. A., Keskinocak, P., Kharoufeh, J. P. & Smith, J. C. (eds.). Chichester: John Wiley and Sons Ltd
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Entry for encyclopedia/dictionary
Published
Integer quadratic quasi-polyhedra
Letchford, A. N., 2010, Integer Programming and Combinatorial Optimization: Proceedings of the 14th International IPCO Conference. Eisenbrand, F. & Shepherd, F. B. (eds.). Berlin: Springer, p. 258-270 13 p. (Lecture Notes in Computer Science; vol. 6080).
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter (peer-reviewed) › peer-review
Published
On a class of metrics related to graph layout problems
Letchford, A. N., Reinelt, G., Seitz, H. & Theis, D. O., 2010, In: Linear Algebra and its Applications. 433, 11-12, p. 1760-1777 18 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Review of "MIR closures of polyhedral sets"
Letchford, A. N., 2009, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "Generalized mixed integer rounding inequalities: facets for infinite group polyhedra
Letchford, A. N., 2009, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "A note on the continuous mixing sets"
Letchford, A. N., 2009, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
A polyhedral approach to the single row facility layout problem
Letchford, A. N. & Amaral, A., 2011, Lancaster University: The Department of Management Science, (Management Science Working Paper Series).
Research output: Working paper
Published
Review of "Extended formulations in combinatorial optimization"
Letchford, A. N., 2010, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "Minimal inequalities for an infinite relaxation of integer programs"
Letchford, A. N., 2010, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "Gear composition of stable set polytopes and G-perfection"
Letchford, A. N., 2010, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "Coefficient strengthening: a tool for reformulating mixed-integer programs"
Letchford, A. N., 2010, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of "Applying mod-k-cuts for solving linear ordering problems"
Letchford, A. N., 2010, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Fast bounding procedures for large instances of the simple plant location problem
Letchford, A. N. & Miller, S. J., 05/2012, In: Computers and Operations Research. 39, 5, p. 985-990 6 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
On the membership problem for the {0, 1/2}-closure
Letchford, A. N., Pokutta, S. & Schulz, A., 09/2011, In: Operations Research Letters. 39, 5, p. 301-304 4 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Review of “On the dominant of the s-t cut polytope: vertices, facets and adjacency”
Letchford, A., 2011, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of “On the Chvátal rank of linear relaxations of the stable set polytope”
Letchford, A., 2011, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of “Orbital branching”
Letchford, A., 2011, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
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
Published
Review of “The Chvátal-Gomory closure of a strictly convex body”.
Letchford, A., 2012, In: Mathematical Reviews. MR2828758.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of “Projecting systems of linear inequalities with binary variables”
Letchford, A., 2012, In: Mathematical Reviews.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
Review of “The Linear Ordering Problem: Exact and Heuristic Methods in Combinatorial Optimization”
Letchford, A., 2012, In: Interfaces. 42, 3, p. 324-325 2 p.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
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
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
Published
Pricing routines for vehicle routing with time windows on road networks
Letchford, A. & Nasiri, S. D., 2014, Lancaster University: The Department of Management Science, 20 p. (Lancaster University Management School Working Paper Series; vol. 2014, no. 2).
Research output: Working paper
Published
Pricing routines for vehicle routing with time windows on road networks
Letchford, A., Nasiri, S. D. & Oukil, A., 11/2014, In: Computers and Operations Research. 51, p. 331-337 7 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
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 Journal/Magazine › Journal article › peer-review
Published
Stronger multi-commodity flow formulations of the capacitated vehicle routing problem
Letchford, A. & Salazar Gonzalez, J. J., 1/08/2015, In: European Journal of Operational Research. 244, 3, p. 730-738 9 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
The Steiner travelling salesman problem with correlated costs
Letchford, A. & Nasiri, S., 16/08/2015, In: European Journal of Operational Research. 245, 1, p. 62–69 8 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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
Published
Preface: The 2013 Newton Institute programme on polynomial optimisation
Letchford, A., Lasserre, J. B., Parrilo, P. A. & Steurer, D., 07/2015, In: Mathematical Programming. 151, 2, p. 375–377 3 p.
Research output: Contribution to Journal/Magazine › Editorial › peer-review
Published
Review of "Integer Programming” by Conforti et al.
Letchford, A. & Marecek, J., 1/10/2015, In: Interfaces. 45, 5, p. 481-482 2 p.
Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review
Published
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 Journal/Magazine › Journal article › peer-review
Published
Strengthening Chvátal-Gomory cuts for the stable set problem
Letchford, A. N., Marzi, F., Rossi, F. & Smriglio, S., 10/09/2016, Combinatorial Optimization: 4th International Symposium, ISCO 2016, Vietri sul Mare, Italy, May 16-18, 2016, Revised Selected Papers. Cerulli, R., Fujishige, S. & Mahjoub, A. R. (eds.). Berlin: Springer, p. 201-212 12 p. (Lecture Notes in Computer Science; vol. 9849).
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter (peer-reviewed) › peer-review
Published
Some hard combinatorial optimisation problems from mobile wireless communications
Letchford, A. N., 18/05/2016. 2 p.
Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review
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
Published
A note on representations of linear inequalities in non-convex mixed-integer quadratic programs
Letchford, A. N. & Grainger, D., 6/11/2017, In: Operations Research Letters. 45, 6, p. 631-634 4 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
A guide to conic optimisation and its applications
Letchford, A. N. & Parkes, A. J., 11/2018, In: RAIRO Operations Research. 52, 4, p. 1087-1106 20 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
The capacitated vehicle routing problem: stronger bounds in pseudo-polynomial time
Letchford, A. N. & Salazar Gonzalez, J. J., 1/01/2019, In: European Journal of Operational Research. 272, 1, p. 24–31 8 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
A heuristic for maximising energy efficiency in OFDMA systems with QoS constraints
Letchford, A. N., Ni, Q. & Zhong, Z., 1/07/2018, Combinatorial Optimization: 5th International Symposium. Lee, J., Rinaldi, G. & Mahjoub, A. R. (eds.). Springer, p. 303-312 10 p. (Lecture Notes in Computer Science; vol. 10856).
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter (peer-reviewed) › peer-review
Published
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 Journal/Magazine › Journal article › peer-review
Published
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 Journal/Magazine › Journal article › peer-review
Published
A heuristic for fair dynamic resource allocation in over-loaded OFDMA systems
Letchford, A., Ni, Q. & Zhong, Z., 1/02/2020, In: Journal of Heuristics. 26, 1, p. 21-32 12 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Facets from gadgets
Letchford, A. & Vu, A., 1/01/2021, In: Mathematical Programming. 185, 1-2, p. 297-314 18 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Valid inequalities for mixed-integer programmes with fixed charges on sets of variables
Letchford, A. & Souli, G., 1/05/2020, In: Operations Research Letters. 48, 3, p. 240-244 5 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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
Published
The stable set problem: clique and nodal inequalities revisited
Letchford, A., Rossi, F. & Smriglio, S., 30/11/2020, In: Computers and Operations Research. 123, 16 p., 105024.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Lifting the knapsack cover inequalities for the knapsack polytope
Letchford, A. & Souli, G., 1/09/2020, In: Operations Research Letters. 48, 5, p. 607-611 5 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Strengthened clique-family inequalities for the stable set polytope  
Letchford, A. & Ventura, P., 31/07/2021, In: Operations Research Letters. 49, 4, p. 586-589 4 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
The Boolean quadric polytope
Letchford, A., 1/05/2022, The Quadratic Unconstrained Binary Optimization Problem: Theory, Algorithms, and Applications. Punnen, A. (ed.). Cham, Switzerland: Springer, p. 97-120 24 p.
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter (peer-reviewed) › peer-review
Published
On some lower bounds for the permutation flowshop problem
Letchford, A., Dang, T. & Caceres Gelvez, S., 30/11/2023, In: Computers and Operations Research. 159, 9 p., 106320.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
The mathematics of operational research
Letchford, A., Liu, K., Misener, R., Syntetos, A. & Tilley, D., 1/08/2023, Mathematics Today, 69, 4, p. 103 1 p.
Research output: Contribution to specialist publication › Article
Published
NATCOR: Ten years of doctoral training in OR
Letchford, A., 15/12/2016, IFORS Newsletter, 10, 4, p. 10-11 2 p.
Research output: Contribution to specialist publication › Contribution to a Specialist Magazine - With ISSN › peer-review
Published
On comb separation for the TSP
Letchford, A., 10/01/1999, p. 4. 1 p.
Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review
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
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
Published
On the multiple knapsack assignment problem
Letchford, A., 08/2022.
Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review
Published
On upper bounds for the multiple knapsack assignment problem
Letchford, A., 04/2023.
Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review
Published
A sum-of-squares approach to achieving fairness in combinatorial optimisation
Letchford, A., 04/2018.
Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review

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