Results 31 to 40 of about 442,994 (288)

Powers of Hamilton cycles in pseudorandom graphs [PDF]

open access: yes, 2014
We study the appearance of powers of Hamilton cycles in pseudorandom graphs, using the following comparatively weak pseudorandomness notion. A graph $G$ is $(\varepsilon,p,k,\ell)$-pseudorandom if for all disjoint $X$ and $Y\subset V(G)$ with $|X|\ge ...
A. Johansson   +18 more
core   +1 more source

Colorful Hamilton Cycles in Random Graphs

open access: yesSIAM Journal on Discrete Mathematics, 2023
fixed minor ...
Debsoumya Chakraborti   +2 more
openaire   +3 more sources

Rainbow hamilton cycles in random graphs [PDF]

open access: yesRandom Structures & Algorithms, 2013
AbstractOne of the most famous results in the theory of random graphs establishes that the threshold for Hamiltonicity in the Erdős‐Rényi random graph Gn,p is around . Much research has been done to extend this to increasingly challenging random structures.
Frieze, Alan, Loh, Po-Shen
openaire   +2 more sources

Hamilton cycles in almost distance-hereditary graphs

open access: yesOpen Mathematics, 2016
Let G be a graph on n ≥ 3 vertices. A graph G is almost distance-hereditary if each connected induced subgraph H of G has the property dH(x, y) ≤ dG(x, y) + 1 for any pair of vertices x, y ∈ V(H).
Chen Bing, Ning Bo
doaj   +1 more source

Hyper-Hamiltonian circulants

open access: yesElectronic Journal of Graph Theory and Applications, 2021
A Hamiltonian graph G = (V,E) is called hyper-Hamiltonian if G-v is Hamiltonian for any v ∈ V(G). G is called a circulant if its automorphism group contains a |V(G)|-cycle.
Zbigniew R. Bogdanowicz
doaj   +1 more source

Path separation by short cycles

open access: yes, 2016
Two Hamilton paths in $K_n$ are separated by a cycle of length $k$ if their union contains such a cycle. For small fixed values of $k$ we bound the asymptotics of the maximum cardinality of a family of Hamilton paths in $K_n$ such that any pair of paths ...
Cibulka   +9 more
core   +1 more source

Loose Hamilton Cycles in Regular Hypergraphs [PDF]

open access: yesCombinatorics, Probability and Computing, 2014
We establish a relation between two uniform models of randomk-graphs (for constantk⩾ 3) onnlabelled vertices: ℍ(k)(n,m), the randomk-graph with exactlymedges, and ℍ(k)(n,d), the randomd-regulark-graph. By extending the switching technique of McKay and Wormald tok-graphs, we show that, for some range ofd = d(n)and a constantc> 0, ifm~cnd, then one ...
Dudek, Andrzej   +3 more
openaire   +2 more sources

A Note on Barnette’s Conjecture

open access: yesDiscussiones Mathematicae Graph Theory, 2013
Barnette conjectured that each planar, bipartite, cubic, and 3-connected graph is hamiltonian. We prove that this conjecture is equivalent to the statement that there is a constant c > 0 such that each graph G of this class contains a path on at least c ...
Harant Jochen
doaj   +1 more source

Hamilton cycles in 3‐out

open access: yesRandom Structures & Algorithms, 2009
AbstractLet G3‐out denote the random graph on vertex set [n] in which each vertex chooses three neighbors uniformly at random. Note that G3‐out has minimum degree 3 and average degree 6. We prove that the probability that G3‐out is Hamiltonian goes to 1 as n tends to infinity. © 2009 Wiley Periodicals, Inc. Random Struct.
Bohman, Tom, Frieze, Alan
openaire   +3 more sources

Counting Hamilton Cycles in Dirac Hypergraphs

open access: yesCombinatorica, 2023
AbstractFor $$0\le \ell <k$$ 0 ≤ ℓ < k , a Hamilton $$\ell $$ ℓ -cycle in a k-uniform hypergraph H is a cyclic ordering of the vertices of H in which the edges ...
Ferber, Asaf, Hardiman, Liam, Mond, Adva
openaire   +1 more source

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