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The lifetime of a random set

Published online by Cambridge University Press:  14 July 2016

Peter C. Kiessler*
Affiliation:
Clemson University
Kanoktip Nimitkiatklai*
Affiliation:
Clemson University
*
Postal address: Department of Mathematical Sciences, Clemson University, Clemson, SC 29634-0975, USA.
Postal address: Department of Mathematical Sciences, Clemson University, Clemson, SC 29634-0975, USA.
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Abstract

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We consider the lifetimes of systems that can be modeled as particles that move within a bounded region in ℝn. Particles move within the set according to a random walk, and particles that leave the set are lost. We divide the set into equal cells and define the lifetime of the set as the time required for the number of particles in one of the cells to fall below a predetermined threshold. We show that the lifetime of the system, given a sufficiently large number of particles, is Weibull distributed.

Type
Research Papers
Copyright
© Applied Probability Trust 2005 

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