Computing irredundant irreducible decompositions of large scale monomial ideals
ISSAC '04 Proceedings of the 2004 international symposium on Symbolic and algebraic computation
The Slice Algorithm for irreducible decomposition of monomial ideals
Journal of Symbolic Computation
Testing additive integrality gaps
SODA '10 Proceedings of the twenty-first annual ACM-SIAM symposium on Discrete Algorithms
Integer programming, Barvinok's counting algorithm and Gomory relaxations
Operations Research Letters
Presburger arithmetic, rational generating functions, and quasi-polynomials
ICALP'13 Proceedings of the 40th international conference on Automata, Languages, and Programming - Volume Part II
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We determine the maximal gap between the optimal values of an integer program and its linear programming relaxation, where the matrix and cost function are fixed but the right hand side is unspecified. Our formula involves irreducible decomposition of monomial ideals. The gap can be computed in polynomial time when the dimension is fixed.