A Model for Random Random-Walks on Finite Groups

  • Authors:
  • Andrew S. Greenhalgh

  • Affiliations:
  • The Acacia Group, 51 Louisiana Avenue, Washington, DC 20001, USA.

  • Venue:
  • Combinatorics, Probability and Computing
  • Year:
  • 1997

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Abstract

A model for a random random-walk on a finite group is developed where the group elements that generate the random-walk are chosen uniformly and with replacement from the group. When the group is the d-cube Zd2, it is shown that if the generating set is size k then as d → ∞ with k − d → ∞ almost all of the random-walks converge to uniform in k ln (k/(k − d))/4+ρk steps, where ρ is any constant satisfying ρ −ln (ln 2)/4.