Improved approximation algorithms for capacitated facility location problems

  • Authors:
  • Fabián A. Chudak;David P. Williamson

  • Affiliations:
  • ETH Zurich, Institut für Operations Research, CLP D 7, Clausiusstrasse 45, 8092, Zürich, Switzerland;Cornell University, School of Operations Research and Industrial Engineering, 236 Rhodes Hall, 14853, Ithaca, NY, USA

  • Venue:
  • Mathematical Programming: Series A and B
  • Year:
  • 2005

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Abstract

We show that a 2-variable integer program, defined by m constraints involving coefficients with at most φ bits, can be solved with O(m+φ) arithmetic operations on rational numbers of size O(φ).