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Branching on a Sierpinski graph

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  • Leorato, S.
  • Orsingher, E.

Abstract

The descending motion of particles in a Sierpinski gasket subject to a branching process is examined. The splitting on escape nodes of falling particles makes the event of reaching the base of the gasket possible with positive probability. The r.v.'s Y(k), representing the number of particles reaching level k (that is the k-th generation) is the main object of our analysis. The transition probabilities, the means and variances of Y(k) are obtained explicitly with a number of recursive formulas concerning the probability generating functions , k>=1. A section is also devoted to the analysis of extinction probabilities for the branching process developing in this specific fractal set.

Suggested Citation

  • Leorato, S. & Orsingher, E., 2009. "Branching on a Sierpinski graph," Statistics & Probability Letters, Elsevier, vol. 79(2), pages 145-154, January.
    • Handle: RePEc:eee:stapro:v:79:y:2009:i:2:p:145-154
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    References listed on IDEAS

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    1. Jones, Owen Dafydd, 1996. "Transition probabilities for the simple random walk on the Sierpinski graph," Stochastic Processes and their Applications, Elsevier, vol. 61(1), pages 45-69, January.
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