Abstract
Consider the relaxation of an integer programming (IP) problem in which the feasible region is replaced by the intersection of the linear programming (LP) feasible region and the corner polyhedron for a particular LP basis. Recently a primal-dual ascent algorithm has been given for solving this relaxation. Given an optimal solution of this relaxation, we state criteria for selecting a new LP basis for which the associated relaxation is stronger. These criteria may be successively applied to obtain either an optimal IP solution or a lower bound on the cost of such a solution. Conditions are given for equality of the convex hull of feasible IP solutions and the intersection of all corner polyhedra.
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References
H.P. Crowder and E.L. Johnson, “Use of cyclic group methods in branch and bound”, Mathematical Sciences Department, IBM Watson Research Center, Yorktown Heights, New York (November, 1972).
M.L. Fisher and J.F. Shapiro, “Constructive duality in integer programming”,SIAM Journal of Applied Mathematics 27 (1974) 31–52.
M.L. Fisher, W.D. Northrup and J.F. Shapiro, “Using duality to solve discrete optimization problems: theory and computational experience”,Mathematical Programming, to appear.
R.S. Garfinkel and G.L. Nemhauser,Integer programming (Wiley, New York, 1972).
R.E. Gomory, “Some polyhedra related to combinatorial problems”,Linear Algebra and Its Applications 2 (1969) 451–558.
R.E. Gomory and E.L. Johnson, “Some continuous functions related to corner polyhedra”,Mathematical Programming 3 (1972) 23–85.
G.A. Gorry and J.F. Shapiro, “An adaptive group-theoretic algorithm for integer programming problems”,Management science 17 (1971) 285–306.
E.L. Johnson, “Cyclic Groups, Cutting Planes, and Shortest Paths,” Mathematical Sciences Department, IBM Watson Research Center, Yorktown Heights, New York (August, 1972).
D.S. Rubin, “On the unlimited number of faces in integer hulls of linear programs with a single constraint”,Operations Research 18 (1970) 940–946.
L.A. Wolsey, “Extensions of the group theoretic approach in integer programming”,Management Science 18 (1971) 74–83.
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Bell, D.E., Fisher, M.L. Improved integer programming bounds using intersections of corner polyhedra. Mathematical Programming 8, 345–368 (1975). https://doi.org/10.1007/BF01580451
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DOI: https://doi.org/10.1007/BF01580451