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The genealogy of Galton-Watson trees

Probability 2019-10-07 v5

Abstract

Take a continuous-time Galton-Watson tree and pick kk distinct particles uniformly from those alive at a time TT. What does their genealogical tree look like? The case k=2k=2 has been studied by several authors, and the near-critical asymptotics for general kk appear in Harris, Johnston and Roberts (2018). Here we give the full picture.

Keywords

Cite

@article{arxiv.1709.08500,
  title  = {The genealogy of Galton-Watson trees},
  author = {Samuel G. G. Johnston},
  journal= {arXiv preprint arXiv:1709.08500},
  year   = {2019}
}

Comments

35 pages, 2 figures