DMGT

ISSN 1234-3099 (print version)

ISSN 2083-5892 (electronic version)

https://doi.org/10.7151/dmgt

Discussiones Mathematicae Graph Theory

Journal Impact Factor (JIF 2022): 0.7

5-year Journal Impact Factor (2022): 0.7

CiteScore (2022): 1.9

SNIP (2022): 0.902

Discussiones Mathematicae Graph Theory

Article in volume


Authors:

E. Mohr

Elena Mohr

Ulm University

email: elena.mohr@uni-ulm.de

D. Rautenbach

Dieter Rautenbach

University of Ulm

email: dieter.rautenbach@uni-ulm.de

Title:

On Hamiltonian cycles in claw-free cubic graphs

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Source:

Discussiones Mathematicae Graph Theory 42(1) (2022) 309-313

Received: 2019-04-16 , Revised: 2019-09-27 , Accepted: 2019-09-27 , Available online: 2019-11-04 , https://doi.org/10.7151/dmgt.2249

Abstract:

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

Keywords:

Hamiltonian cycle, claw-free graph, cubic graph

References:

  1. A.T. Benjamin and J.J. Quinn, Recounting Fibonacci and Lucas identities, College Math. J. 30 (1999) 359–366.
    https://doi.org/10.1080/07468342.1999.11974086
  2. G.L. Chia and C. Thomassen, On the number of longest and almost longest cycles in cubic graphs, Ars Combin. 104 (2012) 307–320.

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