Universality for bounded degree spanning trees in randomly perturbed graphs

J Böttcher, J Han, Y Kohayakawa… - Random Structures …, 2019 - Wiley Online Library
We solve a problem of Krivelevich, Kwan and Sudakov concerning the threshold for the
containment of all bounded degree spanning trees in the model of randomly perturbed …

Embedding spanning bounded degree graphs in randomly perturbed graphs

J Böttcher, R Montgomery, O Parczyk, Y Person - Mathematika, 2020 - Wiley Online Library
We study the model G α∪ G (n, p) of randomly perturbed dense graphs, where G α is any n‐
vertex graph with minimum degree at least α n and G (n, p) is the binomial random graph …

A robust Corrádi–Hajnal theorem

P Allen, J Böttcher, J Corsten, E Davies… - Random Structures …, 2024 - Wiley Online Library
For a graph GG and p∈ 0, 1 p ∈\left 0, 1\right, we denote by G p G _p the random
sparsification of GG obtained by keeping each edge of GG independently, with probability p …

Spanning trees in sparse expanders

J Han, D Yang - arXiv preprint arXiv:2211.04758, 2022 - arxiv.org
Given integers $ n\ge\Delta\ge 2$, let $\mathcal {T}(n,\Delta) $ be the collection of all $ n $-
vertex trees with maximum degree at most $\Delta $. A question of Alon, Krivelevich and …

[PDF][PDF] Combinatorial theorems relative to a random set

D Conlon - arXiv preprint arXiv:1404.3324, 2014 - arxiv.org
Random graphs have played an integral role in extremal combinatorics since they were first
used by Erdos [30] to prove an exponential lower bound for Ramsey numbers. The binomial …

Dirac-type theorems in random hypergraphs

A Ferber, M Kwan - Journal of Combinatorial Theory, Series B, 2022 - Elsevier
For positive integers d< k and n divisible by k, let md (k, n) be the minimum d-degree
ensuring the existence of a perfect matching in a k-uniform hypergraph. In the graph case …

[HTML][HTML] Packing degenerate graphs

P Allen, J Böttcher, J Hladký, D Piguet - Advances in Mathematics, 2019 - Elsevier
Given D and γ> 0, whenever c> 0 is sufficiently small and n sufficiently large, if G is a family
of D-degenerate graphs of individual orders at most n, maximum degrees at most cn log⁡ n …

A rainbow blow-up lemma for almost optimally bounded edge-colourings

S Ehard, S Glock, F Joos - Forum of Mathematics, Sigma, 2020 - cambridge.org
A subgraph of an edge-coloured graph is called rainbow if all its edges have different
colours. We prove a rainbow version of the blow-up lemma of Komlós, Sárközy, and …

The bandwidth theorem in sparse graphs

P Allen, J Böttcher, J Ehrenmüller, A Taraz - arXiv preprint arXiv …, 2016 - arxiv.org
The bandwidth theorem [Mathematische Annalen, 343 (1): 175--205, 2009] states that any $
n $-vertex graph $ G $ with minimum degree $\big (\tfrac {k-1}{k}+ o (1)\big) n $ contains all …

Large-scale structures in random graphs.

J Böttcher - BCC, 2017 - books.google.com
In recent years there has been much progress in graph theory on questions of the following
type. What is the threshold for a certain large substructure to appear in a random graph …