Results 21 to 30 of about 1,253 (97)

Limits of Random Trees [PDF]

open access: yes, 2014
Local convergence of bounded degree graphs was introduced by Benjamini and Schramm. This result was extended further by Lyons to bounded average degree graphs.
Deák, Attila
core   +4 more sources

SYMMETRIC AND ASYMMETRIC RAMSEY PROPERTIES IN RANDOM HYPERGRAPHS

open access: yesForum of Mathematics, Sigma, 2017
A celebrated result of Rödl and Ruciński states that for every graph $F$ , which is not a forest of stars and paths of length 3, and fixed number of colours
LUCA GUGELMANN   +5 more
doaj   +1 more source

Symmetric motifs in random geometric graphs [PDF]

open access: yes, 2017
We study symmetric motifs in random geometric graphs. Symmetric motifs are subsets of nodes which have the same adjacencies. These subgraphs are particularly prevalent in random geometric graphs and appear in the Laplacian and adjacency spectrum as sharp,
Dettmann, Carl P., Knight, Georgie
core   +3 more sources

Ramsey Properties of Random Graphs and Folkman Numbers

open access: yesDiscussiones Mathematicae Graph Theory, 2017
For two graphs, G and F, and an integer r ≥ 2 we write G → (F)r if every r-coloring of the edges of G results in a monochromatic copy of F. In 1995, the first two authors established a threshold edge probability for the Ramsey property G(n, p) → (F)r ...
Rödl Vojtěch   +2 more
doaj   +1 more source

The skew energy of random oriented graphs [PDF]

open access: yes, 2013
Given a graph $G$, let $G^\sigma$ be an oriented graph of $G$ with the orientation $\sigma$ and skew-adjacency matrix $S(G^\sigma)$. The skew energy of the oriented graph $G^\sigma$, denoted by $\mathcal{E}_S(G^\sigma)$, is defined as the sum of the ...
Chen, Xiaolin   +2 more
core   +1 more source

Limit theorems for the weights and the degrees in anN-interactions random graph model

open access: yesOpen Mathematics, 2016
A random graph evolution based on interactions of N vertices is studied. During the evolution both the preferential attachment rule and the uniform choice of vertices are allowed. The weight of an M-clique means the number of its interactions.
Fazekas István, Porvázsnyik Bettina
doaj   +1 more source

High-Precision Entropy Values for Spanning Trees in Lattices

open access: yes, 2003
Shrock and Wu have given numerical values for the exponential growth rate of the number of spanning trees in Euclidean lattices. We give a new technique for numerical evaluation that gives much more precise values, together with rigorous bounds on the ...
Ball K   +11 more
core   +1 more source

Connectivity of inhomogeneous random graphs [PDF]

open access: yes, 2012
We find conditions for the connectivity of inhomogeneous random graphs with intermediate density. Our results generalize the classical result for G(n, p), when p = c log n/n.
Devroye, Luc, Fraiman, Nicolas
core   +1 more source

EIGENVALUES AND LINEAR QUASIRANDOM HYPERGRAPHS

open access: yesForum of Mathematics, Sigma, 2015
Let $p(k)$ denote the partition function of $k$. For each $k\geqslant 2$, we describe a list of $p(k)-1$ quasirandom properties that a $k$-uniform hypergraph can have. Our work connects previous notions on linear hypergraph quasirandomness by Kohayakawa,
JOHN LENZ, DHRUV MUBAYI
doaj   +1 more source

TRANSFERENCE FOR THE ERDŐS–KO–RADO THEOREM

open access: yesForum of Mathematics, Sigma, 2015
For natural numbers $n,r\in \mathbb{N}$ with $n\geqslant r$, the Kneser graph $K(n,r)$ is the graph on the family of $r$-element subsets of $\{1,\ldots ,n\}$ in which two sets are adjacent if and only if they are disjoint.
JÓZSEF BALOGH   +2 more
doaj   +1 more source

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