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Combinatorics Seminar - Kyle Luh

Kyle Luh
December 7, 2017
10:20AM - 11:15AM
Cockins Hall 240

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Add to Calendar 2017-12-07 10:20:00 2017-12-07 11:15:00 Combinatorics Seminar - Kyle Luh Title: Embedding Large Graphs in Random GraphsSpeaker: Kyle Luh (Harvard University)Abstract: In this talk, we consider the problem of embedding almost-spanning, bounded degree graphs in a random graph. In particular, let $\Delta\geq 5$, $\varepsilon > 0$ and let $H$ be a graph on $(1-\varepsilon)n$ vertices and with maximum degree $\Delta$. We show that a random graph $G_{n,p}$ with high probability contains a copy of $H$, provided that $p\gg (n^{-1}\log^{1/\Delta}n)^{2/(\Delta+1)}$. Our assumption on $p$ is optimal up to the $polylog$ factor. We will also discuss recent progress on the "universality" problem, which entails finding the threshold for all graphs of degree at most $\Delta$ to appear in $G_{n,p}$ simultaneously.Seminar URL: https://u.osu.edu/probability/ Cockins Hall 240 Department of Mathematics math@osu.edu America/New_York public

Title: Embedding Large Graphs in Random Graphs

SpeakerKyle Luh (Harvard University)

Abstract: In this talk, we consider the problem of embedding almost-spanning, bounded degree graphs in a random graph. In particular, let $\Delta\geq 5$, $\varepsilon > 0$ and let $H$ be a graph on $(1-\varepsilon)n$ vertices and with maximum degree $\Delta$. We show that a random graph $G_{n,p}$ with high probability contains a copy of $H$, provided that $p\gg (n^{-1}\log^{1/\Delta}n)^{2/(\Delta+1)}$. Our assumption on $p$ is optimal up to the $polylog$ factor. We will also discuss recent progress on the "universality" problem, which entails finding the threshold for all graphs of degree at most $\Delta$ to appear in $G_{n,p}$ simultaneously.

Seminar URLhttps://u.osu.edu/probability/

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