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Scaling Limits of Coalescent Processes Near Time Zero

Probability 2015-11-09 v4

Abstract

In this paper we obtain scaling limits of Λ\Lambda-coalescents near time zero under a regularly varying assumption. In particular this covers the case of Kingman's coalescent and beta coalescents. The limiting processes are coalescents with infinite mass, obtained geometrically as tangent cones of Evans metric space associated with the coalescent. In the case of Kingman's coalescent we are able to obtain a simple construction of the limiting space using a two-sided Brownian motion.

Keywords

Cite

@article{arxiv.1309.0494,
  title  = {Scaling Limits of Coalescent Processes Near Time Zero},
  author = {Bati Sengul},
  journal= {arXiv preprint arXiv:1309.0494},
  year   = {2015}
}

Comments

29 pages, 4 figures