A Laplace transform algorithm for the volume of a convex polytope

  • Authors:
  • Jean B. Lasserre;Eduardo S. Zeron

  • Affiliations:
  • LAAS-CNRS, Toulouse, France;CINVESTAV-IPN, Mexico City, Mexico

  • Venue:
  • Journal of the ACM (JACM)
  • Year:
  • 2001

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Abstract

We provide two algorithms for computing the volume of the convex polytope Ω : = {x ∈ ℝn+ | Ax ≤ b}, for A, ∈ ℝm×n, b ∈ ℝn. The computational complexity of both algorithms is essentially described by nm, which makes them especially attractive for large n and relatively small m, when the other methods with O(mn) complexity fail. The methodology, which differs from previous existing methods, uses a Laplace transform technique that is well suited to the half-space representation of Ω.