### Some Working Papers

- With S. Cáceres Gelvez & T.H. Dang: MIP-based local search for the
permutation flowshop problem.
- With S. Cáceres Gelvez & T.H. Dang: Simple and sparse disjunctive
cuts for the permutation flowshop problem.
- With T. Dokka & M.H. Mansoor: Combinatorial optimisation: primal degeneracy
affects dual-based heuristics.
- With T. Dokka & M.H. Mansoor: Using surrogate relaxation as a matheuristic.
- With L. Galli: Cutting planes for the multiple knapsack assignment problem.
- With L. Galli & A. Gupte: Disjoint bilinear programs, facial disjunctions,
and the reformulation-linearization technique.
- With K. Kaparis & I. Mourtos: A note on dense instances of the max-cut
problem.
- With K. Kaparis & I. Mourtos: On simple disjunctive cuts for the max-cut
problem.
- With A. Kheiri & M. Randall: A sum-of-squares heuristic for a dynamic vehicle
routing problem.
- With A. Kheiri & M. Randall: Applying a sum-of-squares heuristic to the
vehicle routing and slot offering problem in attended home delivery.
- With F. Rossi & S. Smriglio: An ellipsoidal approach to quadratic
unconstrained binary optimisation.
- With M.M. Sørensen: The clique partitioning problem: semidefinite and
spectral bounds.
- With M.M. Sørensen: A branch-and-cut algorithm for the clique
partitioning problem.

Last update: April 2024.

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Adam N. Letchford