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Bounds on the extinction time distribution of a branching process

Published online by Cambridge University Press:  01 July 2016

Alan Agresti
Alan Agresti*
Affiliation:
University of Florida
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Abstract

The class of fractional linear generating functions, one of the few known classes of probability generating functions whose iterates can be explicitly stated, is examined. The method of bounding a probability generating function g (satisfying g″(1) < ∞) by two fractional linear generating functions is used to derive bounds for the extinction time distribution of the Galton-Watson branching process with offspring probability distribution represented by g. For the special case of the Poisson probability generating function, the best possible bounding fractional linear generating functions are obtained, and the bounds for the expected time to extinction of the corresponding Poisson branching process are better than any previously published.

Keywords

GALTON-WATSON PROCESSEXTINCTION TIMEFRACTIONAL LINEAR GENERATING FUNCTION

Information

Type
Research Article
Information
Advances in Applied Probability , Volume 6 , Issue 2 , June 1974 , pp. 322 - 335
Copyright
Copyright © Applied Probability Trust 1974 

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