... assumed that the production rate (rijt) of the main product j of each such scheme is proportional to the capacity of the plant.where Mi denotes the index set of main products of the alternative ... chop off the solution point from the space of the LPrelaxation polyhedron. The process is repeated, thereby reducing the gap between the MILP and itsLP relaxation.A network substructure in the ... ,…, are the extreme rays of C, then the projection of P onto the space of x is given by: projx(P) ϭ {x : Ax Յb, h ϭ 1,…,H; x ʦ X}. This expression requires finding the extreme rays of the polyhedral...