Abstract :
[en] We study the problem of designing at minimum cost a two-connected network such that each edge
belongs to a cycle using at most K edges. This problem is a particular case of the two-connected networks with
bounded meshes problem studied by Fortz, Labb´e and Maffioli (Operations Research, vol. 48, no. 6, pp. 866–877,
2000).
In this paper, we compute a lower bound on the number of edges in a feasible solution, we show that the problem
is strongly NP-complete for any fixed K , and we derive a new class of facet defining inequalities. Numerical results
obtained with a branch-and-cut algorithm using these inequalities show their effectiveness for solving the problem.
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