An approximate max-flow min-cut theorem for uniform multicommodity flow problems with applications to approximation algorithms

  • Authors:
  • T. Leighton;S. Rao

  • Affiliations:
  • MIT, Cambridge, MA, USA;MIT, Cambridge, MA, USA

  • Venue:
  • SFCS '88 Proceedings of the 29th Annual Symposium on Foundations of Computer Science
  • Year:
  • 1988

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Abstract

A simple construction for a pseudorandom bit generator is presented. It stretches a short string of truly random bits into a long string that looks random to any algorithm from a complexity class C (e.g. P, NC, PSPACE, etc.), using an arbitrary function ...