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k-Ordered Hamilton cycles in digraphs [PDF]

open access: greenJournal of Combinatorial Theory, Series B, 2007
Given a digraph D, the minimum semi-degree of D is the minimum of its minimum indegree and its minimum outdegree. D is k-ordered Hamiltonian if for every ordered sequence of k distinct vertices there is a directed Hamilton cycle which encounters these vertices in this order.
Daniela Kühn   +2 more
openalex   +3 more sources

M-alternating Hamilton paths and M-alternating Hamilton cycles [PDF]

open access: greenDiscrete Mathematics, 2017
published in Discrete ...
Zan‐Bo Zhang, Yueping Li, Dingjun Lou
openalex   +3 more sources

Hamilton Cycles in Double Generalized Petersen Graphs

open access: diamondDiscussiones Mathematicae Graph Theory, 2019
Coxeter referred to generalizing the Petersen graph. Zhou and Feng modified the graphs and introduced the double generalized Petersen graphs (DGPGs). Kutnar and Petecki proved that DGPGs are Hamiltonian in special cases and conjectured that all DGPGs are
Sakamoto Yutaro
doaj   +2 more sources

Resilience for loose Hamilton cycles

open access: diamondProcedia Computer Science, 2023
We study the emergence of loose Hamilton cycles in subgraphs of random hypergraphs. Our main result states that the minimum $d$-degree threshold for loose Hamiltonicity relative to the random $k$-uniform hypergraph $H_k(n,p)$ coincides with its dense analogue whenever $p \geq n^{- (k-1)/2+o(1)}$.
José D. Alvarado   +4 more
openalex   +3 more sources

Hamilton cycles in 3‐out [PDF]

open access: bronzeRandom 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.
Tom Bohman, Alan Frieze
openalex   +4 more sources

Colorful Hamilton cycles in random graphs

open access: greenSIAM Journal on Discrete Mathematics, 2021
fixed minor ...
Debsoumya Chakraborti   +2 more
openalex   +4 more sources

Multicoloured Hamilton Cycles [PDF]

open access: yesThe Electronic Journal of Combinatorics, 1995
The edges of the complete graph $K_n$ are coloured so that no colour appears more than $\lceil cn\rceil$ times, where $c < 1/32$ is a constant. We show that if $n$ is sufficiently large then there is a Hamiltonian cycle in which each edge is a different colour, thereby proving a 1986 conjecture of Hahn and Thomassen. We prove a similar result for
Albert, Michael   +2 more
openaire   +2 more sources

Packing Hamilton Cycles Online [PDF]

open access: yesCombinatorics, Probability and Computing, 2018
It is known that w.h.p. the hitting time τ2σ for the random graph process to have minimum degree 2σ coincides with the hitting time for σ edge-disjoint Hamilton cycles [4, 9, 13]. In this paper we prove an online version of this property. We show that, for a fixed integer σ ⩾ 2, if random edges of Kn are presented one by one then w.h.p.
Briggs, Joseph   +4 more
openaire   +4 more sources

Packing Loose Hamilton Cycles [PDF]

open access: yesCombinatorics, Probability and Computing, 2017
A subsetCof edges in ak-uniform hypergraphHis aloose Hamilton cycleifCcovers all the vertices ofHand there exists a cyclic ordering of these vertices such that the edges inCare segments of that order and such that every two consecutive edges share exactly one vertex.
Ferber, Asaf   +3 more
openaire   +2 more sources

Extending Cycles Locally to Hamilton Cycles [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2016
A Hamilton circle in an infinite graph is a homeomorphic copy of the  unit circle $S^1$ that contains all vertices and all ends precisely once. We prove that every connected, locally connected, locally finite, claw-free graph has such a Hamilton circle, extending a result of Oberly and Sumner to infinite graphs.
Hamann, Matthias   +2 more
openaire   +2 more sources

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