LOPARIC, Marko; POCHET, Yves; WOLSEY, Laurence - Center for Operations Research and Econometrics (CORE), … - 1999
We examine a variant of the uncapacitated lot-sizing model of Wagner-Whitin involving sales instead of fixed demands, and lower bounds on stocks. Two extended formulations are presented, as well as a dynamic programming algorithm and a complete description of the convex hull of solutions. When...