Percolation on High‐Dimensional Product Graphs

S Diskin, J Erde, M Kang… - Random Structures & …, 2025 - Wiley Online Library
We consider percolation on high‐dimensional product graphs, where the base graphs are
regular and of bounded order. In the subcritical regime, we show that typically the largest …

Crux and long cycles in graphs

J Haslegrave, J Hu, J Kim, H Liu, B Luan… - SIAM Journal on Discrete …, 2022 - SIAM
We introduce a notion of the crux of a graph G, measuring the order of a smallest dense
subgraph in G. This simple-looking notion leads to some generalizations of known results …

Hamiltonicity of random subgraphs of the hypercube

We study Hamiltonicity in random subgraphs of the hypercube $\mathcal {Q}^ n $. Our first
main theorem is an optimal hitting time result. Consider the random process which includes …

[HTML][HTML] How to build a pillar: a proof of Thomassen's conjecture

IG Fernández, H Liu - Journal of Combinatorial Theory, Series B, 2023 - Elsevier
Carsten Thomassen in 1989 conjectured that if a graph has minimum degree much more
than the number of atoms in the universe (δ (G)≥ 10 10 10), then it contains a pillar, which is …

Isoperimetric inequalities and supercritical percolation on high-dimensional graphs

S Diskin, J Erde, M Kang, M Krivelevich - Combinatorica, 2024 - Springer
It is known that many different types of finite random subgraph models undergo
quantitatively similar phase transitions around their percolation thresholds, and the proofs of …

The evolution of the permutahedron

M Collares, J Doolittle, J Erde - arXiv preprint arXiv:2404.17260, 2024 - arxiv.org
In their seminal paper introducing the theory of random graphs, Erd\H {o} s and R\'{e} nyi
considered the evolution of the structure of a random subgraph of $ K_n $ as the density …

How to build a pillar: a proof of Thomassen's conjecture

IG Fernández, H Liu - Discrete Mathematics Days 2022, 2022 - books.google.com
Carsten Thomassen in 1989 conjectured that if a graph has minimum degree more than the
number of atoms in the universe (δ (G)≥ 101010), then it contains a pillar, which is a graph …

Well-mixing vertices and almost expanders

D Chakraborti, J Kim, J Kim, M Kim, H Liu - Proceedings of the American …, 2022 - ams.org
We study regular graphs in which the random walks starting from a positive fraction of
vertices have small mixing time. We prove that any such graph is virtually an expander and …

Expansion in supercritical random subgraphs of expanders and its consequences

S Diskin, M Krivelevich - Random Structures & Algorithms, 2024 - Wiley Online Library
In 2004, Frieze, Krivelevich and Martin established the emergence of a giant component in
random subgraphs of pseudo‐random graphs. We study several typical properties of the …

[PDF][PDF] Isoperimetric Inequalities and Supercritical Percolation on High-dimensional Product Graphs

S Diskin, J Erde, M Kang… - Combinatorica, to appear, 2023 - researchgate.net
It is known that many different types of finite random subgraph models undergo
quantitatively similar phase transitions around their percolation thresholds, and the proofs of …