Integer Programming Subject to Monomial Constraints

  • Authors:
  • Christoph Buchheim;Dennis Michaels;Robert Weismantel

  • Affiliations:
  • christoph.buchheim@tu-dortmund.de;dennis.michaels@ifor.math.ethz.ch and robert.weismantel@ifor.math.ethz.ch;-

  • Venue:
  • SIAM Journal on Optimization
  • Year:
  • 2010

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Abstract

We investigate integer programs containing constraints of the type $\prod_{i\in I}x_i^{\alpha_i}=b$. Due to the number-theoretic nature of these constraints, standard methods based on linear algebra cannot be applied directly. Instead, we present a reformulation resulting in integer programs with linear constraints and polynomial objective functions, using prime decompositions of the right-hand sides $b$. Moreover, we show that minimizing a linear objective function with nonnegative coefficients over bivariate constraints is possible in polynomial time.