María del Carmen Varaldo

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In this work we consider the uniform capacitated single-item single-machine lot-sizing problem with continuous start-up costs. A continuous start-up cost is generated in a period whenever there is a nonzero production in the period and the production capacity in the previous period is not saturated. This concept of start-up does not correspond to the(More)
The behavior of the disjunctive operator, defined by Balas, Ceria and Cornuéjols, in the context of the " antiblocker duality diagram " associated with the stable set polytope, QSTAB(G), of a graph and its complement, was first studied by Aguilera, Escalante and Nasini. The authors prove the commutativity of this diagram in any number of iterations of the(More)
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