On Random Symmetric Travelling Salesman Problems

  • Authors:
  • Alan Frieze

  • Affiliations:
  • -

  • Venue:
  • Mathematics of Operations Research
  • Year:
  • 2004

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Abstract

Let the edges of the complete graphK nbe assigned independent uniform [0, 1] random edge weights. LetZTSP andZ2FAC be the weights of the minimum length travelling salesman tour and minimum weight 2-factor, respectively. We show thatwhp | ZTSP -Z2FAC| =o(1). The proof is obtained by the analysis of a polynomial time algorithm that finds a tour only a little longer thanZ2FAC.