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Discrete Mathematics & Theoretical Computer Science
Article . 2016 . Peer-reviewed
Data sources: Crossref
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Hal
Article . 2016
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DBLP
Article . 2016
Data sources: DBLP
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Traceability of locally hamiltonian and locally traceable graphs

Authors: Johan De Wet; Susan Van Aardt;

Traceability of locally hamiltonian and locally traceable graphs

Abstract

If $\mathcal{P}$ is a given graph property, we say that a graph $G$ is <i>locally</i> $\mathcal{P}$ if $\langle N(v) \rangle$ has property $\mathcal{P}$ for every $v \in V(G)$ where $\langle N(v) \rangle$ is the induced graph on the open neighbourhood of the vertex $v$. Pareek and Skupien (C. M. Pareek and Z. Skupien , On the smallest non-Hamiltonian locally Hamiltonian graph, J. Univ. Kuwait (Sci.), 10:9 - 17, 1983) posed the following two questions. <b>Question 1</b> Is 9 the smallest order of a connected nontraceable locally traceable graph? <b>Question 2</b> Is 14 the smallest order of a connected nontraceable locally hamiltonian graph? We answer the second question in the affirmative, but show that the correct number for the first question is 10. We develop a technique to construct connected locally hamiltonian and locally traceable graphs that are not traceable. We use this technique to construct such graphs with various prescribed properties.

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Keywords

[INFO.INFO-DM] Computer Science [cs]/Discrete Mathematics [cs.DM], locally traceable, locally hamiltonian, QA1-939, nonhamiltonian, [info.info-dm] computer science [cs]/discrete mathematics [cs.dm], nontraceable, [INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM], Mathematics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green
Published in a Diamond OA journal