On Hamiltonian Cycles in Claw-Free Cubic Graphs

We show that every claw-free cubic graph of order n at least 8 has at most 2⌊n4⌋{2^{\left\lfloor {{n \over 4}} \right\rfloor }} Hamiltonian cycles, and we also characterize all extremal graphs.

Bibliographic Details
Main Authors: Mohr Elena, Rautenbach Dieter
Format: Article
Language:English
Published: University of Zielona Góra 2022-02-01
Series:Discussiones Mathematicae Graph Theory
Subjects:
Online Access:https://doi.org/10.7151/dmgt.2249
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author Mohr Elena
Rautenbach Dieter
author_facet Mohr Elena
Rautenbach Dieter
author_sort Mohr Elena
collection DOAJ
description We show that every claw-free cubic graph of order n at least 8 has at most 2⌊n4⌋{2^{\left\lfloor {{n \over 4}} \right\rfloor }} Hamiltonian cycles, and we also characterize all extremal graphs.
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spelling doaj.art-373a713b522f4c52bc1f11bd75b29ccc2023-09-02T16:29:34ZengUniversity of Zielona GóraDiscussiones Mathematicae Graph Theory2083-58922022-02-0142130931310.7151/dmgt.2249On Hamiltonian Cycles in Claw-Free Cubic GraphsMohr Elena0Rautenbach Dieter1Institute of Optimization and Operations Research, Ulm University, GermanyInstitute of Optimization and Operations Research, Ulm University, GermanyWe show that every claw-free cubic graph of order n at least 8 has at most 2⌊n4⌋{2^{\left\lfloor {{n \over 4}} \right\rfloor }} Hamiltonian cycles, and we also characterize all extremal graphs.https://doi.org/10.7151/dmgt.2249hamiltonian cycleclaw-free graphcubic graph05c70
spellingShingle Mohr Elena
Rautenbach Dieter
On Hamiltonian Cycles in Claw-Free Cubic Graphs
Discussiones Mathematicae Graph Theory
hamiltonian cycle
claw-free graph
cubic graph
05c70
title On Hamiltonian Cycles in Claw-Free Cubic Graphs
title_full On Hamiltonian Cycles in Claw-Free Cubic Graphs
title_fullStr On Hamiltonian Cycles in Claw-Free Cubic Graphs
title_full_unstemmed On Hamiltonian Cycles in Claw-Free Cubic Graphs
title_short On Hamiltonian Cycles in Claw-Free Cubic Graphs
title_sort on hamiltonian cycles in claw free cubic graphs
topic hamiltonian cycle
claw-free graph
cubic graph
05c70
url https://doi.org/10.7151/dmgt.2249
work_keys_str_mv AT mohrelena onhamiltoniancyclesinclawfreecubicgraphs
AT rautenbachdieter onhamiltoniancyclesinclawfreecubicgraphs