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Concentration of the maximum size of an induced subtree in moderately sparse random graphs

Combinatorics 2025-07-04 v2

Abstract

Kamaldinov, Skorkin, and Zhukovskii proved that the maximum size of an induced subtree in the binomial random graph G(n,p)G(n,p) is concentrated at two consecutive points, whenever p(0,1)p\in(0,1) is a constant. Using improved bounds on the second moment of the number of induced subtrees, we show that the same result holds when ne23e2+εp=o(1)n^{-\frac{e-2}{3e-2}+\varepsilon}\leq p=o(1).

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Cite

@article{arxiv.2506.02801,
  title  = {Concentration of the maximum size of an induced subtree in moderately sparse random graphs},
  author = {Juan Carlos Buitrago Oropeza},
  journal= {arXiv preprint arXiv:2506.02801},
  year   = {2025}
}

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27 pages