Approximation through multicommodity flow

  • Authors:
  • P. Klein;A. Agrawal;R. Ravi;S. Rao

  • Affiliations:
  • Brown Univ., Providence, RI, USA;Brown Univ., Providence, RI, USA;Brown Univ., Providence, RI, USA;-

  • Venue:
  • SFCS '90 Proceedings of the 31st Annual Symposium on Foundations of Computer Science
  • Year:
  • 1990

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Abstract

The first approximate max-flow-min-cut theorem for general multicommodity flow is proved. It is used to obtain approximation algorithms for minimum deletion of clauses of a 2-CNF identical to formula, via minimization problems, and other problems. Also presented are approximation algorithms for chordalization of a graph and for register sufficiency that are based on undirected and directed node separators.