[HTML][HTML] On the exact maximum induced density of almost all graphs and their inducibility
R Yuster - Journal of Combinatorial Theory, Series B, 2019 - Elsevier
Let H be a graph on h vertices. The number of induced copies of H in a graph G is denoted
by i H (G). Let i H (n) denote the maximum of i H (G) taken over all graphs G with n vertices …
by i H (G). Let i H (n) denote the maximum of i H (G) taken over all graphs G with n vertices …
Anticoncentration for subgraph statistics
Consider integers k, ℓ such that 0⩽ ℓ⩽ k 2. Given a large graph G, what is the fraction of k‐
vertex subsets of G which span exactly ℓ edges? When G is empty or complete, and ℓ is zero …
vertex subsets of G which span exactly ℓ edges? When G is empty or complete, and ℓ is zero …
[HTML][HTML] A bound on the inducibility of cycles
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[HTML][HTML] Strong forms of stability from flag algebra calculations
Given a hereditary family G of admissible graphs and a function λ (G) that linearly depends
on the statistics of order-κ subgraphs in a graph G, we consider the extremal problem of …
on the statistics of order-κ subgraphs in a graph G, we consider the extremal problem of …
Combinatorial anti-concentration inequalities, with applications
We prove several different anti-concentration inequalities for functions of independent
Bernoulli-distributed random variables. First, motivated by a conjecture of Alon, Hefetz …
Bernoulli-distributed random variables. First, motivated by a conjecture of Alon, Hefetz …
Edge-statistics on large graphs
The inducibility of a graph H measures the maximum number of induced copies of H a large
graph G can have. Generalizing this notion, we study how many induced subgraphs of fixed …
graph G can have. Generalizing this notion, we study how many induced subgraphs of fixed …
Stability from graph symmetrisation arguments with applications to inducibility
H Liu, O Pikhurko, M Sharifzadeh… - Journal of the London …, 2023 - Wiley Online Library
We present a sufficient condition for the stability property of extremal graph problems that
can be solved via Zykov's symmetrisation. Our criterion is stated in terms of an analytic limit …
can be solved via Zykov's symmetrisation. Our criterion is stated in terms of an analytic limit …
[HTML][HTML] On the inducibility of cycles
Abstract In 1975 Pippenger and Golumbic proved that any graph on n vertices admits at
most 2 e (n/k) k induced k-cycles. This bound is larger by a multiplicative factor of 2e than the …
most 2 e (n/k) k induced k-cycles. This bound is larger by a multiplicative factor of 2e than the …
On the maximum number of odd cycles in graphs without smaller odd cycles
A Grzesik, B Kielak - Journal of Graph Theory, 2022 - Wiley Online Library
We prove that for each odd integer k≥ 7, every graph on n vertices without odd cycles of
length less than k contains at most (n∕ k) k cycles of length k. This extends the previous …
length less than k contains at most (n∕ k) k cycles of length k. This extends the previous …