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arXiv · 0908.2444

The tree length of an evolving coalescent

Peter Pfaffelhuber·Anton Wakolbinger·Heinz Weisshaupt
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Abstract

A well-established model for the genealogy of a large population in equilibrium is Kingman's coalescent. For the population together with its genealogy evolving in time, this gives rise to a time-stationary tree-valued process. We study the sum of the branch lengths, briefly denoted as tree length, and prove that the (suitably compensated) sequence of tree length processes converges, as the population size tends to infinity, to a limit process with cadlag paths, infinite infinitesimal variance, and a Gumbel distribution as its equilibrium.

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Peter Pfaffelhuber, Anton Wakolbinger, Heinz Weisshaupt. 2010-05-16. The tree length of an evolving coalescent. https://arxiv.org/abs/0908.2444

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