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Related papers: Hamilton circles in Cayley graphs

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For locally finite infinite graphs the notion of Hamilton cycles can be extended to Hamilton circles, homeomorphic images of $S^1$ in the Freudenthal compactification. In this paper we extend some well-known theorems of the Hamiltonicity of…

Combinatorics · Mathematics 2017-08-14 Babak Miraftab , Tim Rühmann

Using topological circles in the Freudenthal compactification of a graph as infinite cycles, we extend to locally finite graphs a result of Oberly and Sumner on the Hamiltonicity of finite graphs. This answers a question of Stein, and gives…

Combinatorics · Mathematics 2019-03-29 Karl Heuer

We state a sufficient condition for the square of a locally finite graph to contain a Hamilton circle, extending a result of Harary and Schwenk about finite graphs. We also give an alternative proof of an extension to locally finite graphs…

Combinatorics · Mathematics 2018-12-06 Karl Heuer

We study existence of Hamilton cycles in connected Cayley graphs on generalized dihedral groups

Combinatorics · Mathematics 2018-11-06 Hui Zhou , Binzhou Xia

A circle of an infinite locally finite graph $G$ is the imagine of a homeomorphic mapping of the unit circle $S^1$ in $|G|$, the Freudenthal compactification of $G$. A circle of $G$ is Hamiltonian if it meets every vertex (and then every…

Combinatorics · Mathematics 2019-04-29 Binlong Li

In this paper we extend a result about a sufficient condition for Hamiltonicity for finite graphs by Broersma and Veldmann to locally finite graphs. In order to do this we use topological circles within the Freudenthal compactification of a…

Combinatorics · Mathematics 2020-06-17 Karl Heuer , Deniz Sarikaya

In a series of papers, of which this is the first, we study sufficient conditions for Hamiltonicity in terms of forbidden induced subgraphs and extend such results to locally finite infinite graphs. For this we use topological circles…

Combinatorics · Mathematics 2020-06-17 Karl Heuer , Deniz Sarikaya

We show that the topological cycle space of a locally finite graph is a canonical quotient of the first singular homology group of its Freudenthal compactification, and we characterize the graphs for which the two coincide. We construct a…

Combinatorics · Mathematics 2009-10-30 Reinhard Diestel , Philipp Sprüssel

Among the well-known sufficient degree conditions for the Hamiltonicity of a finite graph, the condition of Asratian and Khachatrian is the weakest and thus gives the strongest result. Diestel conjectured that it should extend to locally…

Combinatorics · Mathematics 2019-03-29 Karl Heuer

In this paper we prove a sufficient condition for the existence of a Hamilton cycle, which is applicable to a wide variety of graphs, including relatively sparse graphs. In contrast to previous criteria, ours is based on only two…

Combinatorics · Mathematics 2007-05-23 Dan Hefetz , Michael Krivelevich , Tibor Szabo

The classical global criteria for the existence of Hamilton cycles only apply to graphs with large edge density and small diameter. In a series of papers Asratian and Khachatryan developed local criteria for the existence of Hamilton cycles…

Combinatorics · Mathematics 2021-05-10 Armen S. Asratian , Jonas B. Granholm , Nikolay K. Khachatryan

In 1982, Durnberger proved that every connected Cayley graph of a finite group with a commutator subgroup of prime order contains a hamiltonian cycle. In this paper, we extend this result to the infinite case. Additionally, we generalize…

Combinatorics · Mathematics 2024-12-12 Florian Lehner , Farzad Maghsoudi , Babak Miraftab

Motivated by the Gray code interpretation of Hamiltonian cycles in Cayley graphs, we investigate the existence of Hamiltonian cycles in tope graphs of hyperplane arrangements, with a focus on simplicial, reflection, and supersolvable…

Combinatorics · Mathematics 2026-04-10 Veronika Körber , Tobias Schnieders , Jan Stricker , Jasmin Walizadeh

Investigating a problem of B. Mohar, we show that every one-ended Hamiltonian cubic graph with end degree 3 contains a second Hamilton cycle. We also construct two examples showing that this result does not extend to give a third Hamilton…

Combinatorics · Mathematics 2017-05-22 Max Pitz

Generalizing a result of Conway, Sloane, and Wilkes for real reflection groups, we show the Cayley graph of an imprimitive complex reflection group with respect to standard generating reflections has a Hamiltonian cycle. This is consistent…

Combinatorics · Mathematics 2014-03-05 Cathy Kriloff , Terry Lay

We present a necessary and sufficient condition for existence of a contractible Hamiltonian Cycle in the edge graph of equivelar maps on surfaces. We also present an algorithm to construct such cycles. This is further generalized and shown…

Combinatorics · Mathematics 2012-02-21 Dipendu Maity , Ashish Kumar Upadhyay

We initiate the study of Hamiltonian cycles up to symmetries of the underlying graph. Our focus lies on the extremal case of Hamiltonian-transitive graphs, i.e., Hamiltonian graphs where, for every pair of Hamiltonian cycles, there is a…

Combinatorics · Mathematics 2026-05-06 Julia Baligacs , Sofia Brenner , Annette Lutz , Lena Volk

Finding general conditions which ensure that a graph is Hamiltonian is a central topic in graph theory. An old and well known conjecture in the area states that any $d$-regular $n$-vertex graph $G$ whose second largest eigenvalue in…

Combinatorics · Mathematics 2023-03-10 Stefan Glock , David Munhá Correia , Benny Sudakov

We prove that any one-ended, locally finite Cayley graph with non-torsion generators admits a decomposition into edge-disjoint Hamiltonian (i.e. spanning) double-rays. In particular, the $n$-dimensional grid $\mathbb{Z}^n$ admits a…

Combinatorics · Mathematics 2017-09-28 Joshua Erde , Florian Lehner , Max Pitz

We discuss the existence of Hamilton cycles in the random graph $G_{n,p}$ where there are restrictions caused by (i) coloring sequences, (ii) a subset of vertices must occur in a specific order and (iii) there is a bound on the number of…

Combinatorics · Mathematics 2023-11-08 Alan Frieze , Wesley Pegden
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