Search Results - "Diskin, Sahar"
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1
Isoperimetric Inequalities and Supercritical Percolation on High-Dimensional Graphs
Published in Combinatorica (Budapest. 1981) (2024)“…It is known that many different types of finite random subgraph models undergo quantitatively similar phase transitions around their percolation thresholds,…”
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2
Expansion in supercritical random subgraphs of expanders and its consequences
Published in Random structures & algorithms (01-10-2024)“…In 2004, Frieze, Krivelevich and Martin established the emergence of a giant component in random subgraphs of pseudo‐random graphs. We study several typical…”
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3
Heavy and light paths and Hamilton cycles
Published in Information processing letters (01-08-2023)“…Given a graph G, we denote by f(G,u0,k) the number of paths of length k in G starting from u0. In graphs of maximum degree 3, with edge weights i.i.d. with…”
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4
Site percolation on pseudo‐random graphs
Published in Random structures & algorithms (01-09-2023)“…We consider vertex percolation on pseudo‐random d$$ d $$‐regular graphs. The previous study by the second author established the existence of phase transition…”
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5
On the Performance of the Depth First Search Algorithm in Supercritical Random Graphs
Published in The Electronic journal of combinatorics (23-09-2022)“…We consider the performance of the Depth First Search (DFS) algorithm on the random graph $G\left(n,\frac{1+\epsilon}{n}\right)$, $\epsilon>0$ a small…”
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6
Percolation on High‐Dimensional Product Graphs
Published in Random structures & algorithms (01-01-2025)“…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…”
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7
On vertex Ramsey graphs with forbidden subgraphs
Published in Discrete mathematics (01-03-2024)Get full text
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8
Climbing up a random subgraph of the hypercube
Published in Electronic communications in probability (01-01-2024)Get full text
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9
Minimum degree $k$ and $k$-connectedness usually arrive together
Published 22-09-2024“…Let $d,n\in \mathbb{N}$ be such that $d=\omega(1)$, and $d\le n^{1-a}$ for some constant $a>0$. Consider a $d$-regular graph $G=(V, E)$ and the random graph…”
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10
Components, large and small, are as they should be I: supercritical percolation on regular graphs of growing degree
Published 08-08-2024“…We provide sufficient conditions for a regular graph $G$ of growing degree $d$, guaranteeing a phase transition in its random subgraph $G_p$ similar to that of…”
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11
Components, large and small, are as they should be II: supercritical percolation on regular graphs of constant degree
Published 08-08-2024“…Let $d\ge 3$ be a fixed integer. Let $y:= y(p)$ be the probability that the root of an infinite $d$-regular tree belongs to an infinite cluster after…”
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12
Isoperimetry in product graphs
Published 02-07-2024“…In this short note, we establish an edge-isoperimetric inequality for arbitrary product graphs. Our inequality is sharp for subsets of many different sizes in…”
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13
Perfect Matching in Product Graphs and in their Random Subgraphs
Published 22-04-2024“…For $t \in \mathbb{N}$ and every $i\in[t]$, let $H_i$ be a $d_i$-regular connected graph, with $1<|V(H_i)|\le C$ for some integer $C\ge 2$. Let…”
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14
Hitting time of connectedness in the random hypercube process
Published 14-04-2024“…We present a short and self-contained proof of a classical result due to Bollob\'as (1990): in the random hypercube process, with high probability the hitting…”
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15
Heavy and Light Paths and Hamilton Cycles
Published 17-10-2022“…Given a graph $G$, we denote by $f(G,u_0,k)$ the number of paths of length $k$ in $G$ starting from $u_0$. In graphs of maximum degree 3, with edge weights…”
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16
Expansion in Supercritical Random Subgraphs of Expanders and its Consequences
Published 10-05-2022“…In 2004, Frieze, Krivelevich and Martin [17] established the emergence of a giant component in random subgraphs of pseudo-random graphs. We study several…”
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17
Supercritical Site Percolation on the Hypercube: Small Components are Small
Published 11-04-2022“…We consider supercritical site percolation on the $d$-dimensional hypercube $Q^d$. We show that typically all components in the percolated hypercube, besides…”
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18
On the Performance of the Depth First Search Algorithm in Supercritical Random Graphs
Published 14-11-2021“…We consider the performance of the Depth First Search (DFS) algorithm on the random graph $G\left(n,\frac{1+\epsilon}{n}\right)$, $\epsilon>0$ a small…”
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19
Site Percolation on Pseudo-Random Graphs
Published 28-07-2021“…We consider vertex percolation on pseudo-random $d-$regular graphs. The previous study by the second author established the existence of phase transition from…”
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20
A Jump of the Saturation Number in Random Graphs?
Published 21-03-2023“…For graphs $G$ and $F$, the saturation number $\textit{sat}(G,F)$ is the minimum number of edges in an inclusion-maximal $F$-free subgraph of $G$. In 2017,…”
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