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Beta-gamma tail asymptotics

Probability 2015-09-10 v1

Abstract

We compute the tail asymptotics of the product of a beta random variable and a generalized gamma random variable which are independent and have general parameters. A special case of these asymptotics were proved and used in a recent work of Bubeck, Mossel, and R\'acz in order to determine the tail asymptotics of the maximum degree of the preferential attachment tree. The proof presented here is simpler and highlights why these asymptotics hold.

Keywords

Cite

@article{arxiv.1509.02583,
  title  = {Beta-gamma tail asymptotics},
  author = {Jim Pitman and Miklos Z. Racz},
  journal= {arXiv preprint arXiv:1509.02583},
  year   = {2015}
}

Comments

6 pages

R2 v1 2026-06-22T10:52:21.688Z