Abstract
If
is a probability generating function, the coefficients π j in the MacLaurin expansion π(s) comprise a harmonic renewal sequence. A simple sufficient condition is given which ensures that a non-negative sequence is harmonic renewal. This condition covers the case of the limiting conditional law of a subcritical Markov branching process.
Examples are given illustrating the limitation of the criterion. The parallel problem for continuous laws and its relation to the CB-process is discussed.
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Pakes, A.G. (1997). On the Recognition and Structure of Probability Generating Functions. In: Athreya, K.B., Jagers, P. (eds) Classical and Modern Branching Processes. The IMA Volumes in Mathematics and its Applications, vol 84. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-1862-3_21
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DOI: https://doi.org/10.1007/978-1-4612-1862-3_21
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