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Kim--Vu's sandwich conjecture is true for $d \gg \log^4 n$

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arxiv 2011.09449 v5 pith:BYV7F3J7 submitted 2020-11-18 math.CO

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keywords conjectureadvancesasymptoticallyconfirmdegreeequalextendfamous
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abstract

Kim and Vu made the following conjecture (\textit{Advances in Mathematics}, 2004): if $d\gg \log n$, then the random $d$-regular graph $G(n,d)$ can be ``sandwiched'' between $G(n,p_*)$ and $G(n,p^*)$ where $p_*$ and $p^*$ are both asymptotically equal to $d/n$. This famous conjecture was previously proved for all $d\gg (n\log n)^{3/4}$. In this paper, we confirm the conjecture when $d \gg \log^4 n$. We also extend this result to near-regular degree sequences.

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Cited by 3 Pith papers

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    Random d-regular graphs have sum-sets of size n^{1-2/d} for every abelian group, proving a polynomial lower bound that is tight up to polylog factors.

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