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arXiv · 1001.2471

The unscaled paths of branching Brownian motion

Simon C. Harris·Matthew I. Roberts
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Abstract

For a set $A\subset C[0,\infty)$, we give new results on the growth of the number of particles in a dyadic branching Brownian motion whose paths fall within A. We show that it is possible to work without rescaling the paths. We give large deviations probabilities as well as a more sophisticated proof of a result on growth in the number of particles along certain sets of paths. Our results reveal that the number of particles can oscillate dramatically. As a byproduct of our methods we also obtain new results on the number of particles near the frontier of the model. The methods used are entirely probabilistic.

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Simon C. Harris, Matthew I. Roberts. 2010-09-23. The unscaled paths of branching Brownian motion. https://arxiv.org/abs/1001.2471

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