Abstract
We use some recent results on the existence of long cycles in leapfrog fullerenes to establish new exponential lower bounds on the number of perfect matchings in such graphs. The new bounds are expressed in terms of Fibonacci numbers.
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Austin S.J., Fowler P.W., Hansen P., Manolopoulos D.E., Zheng M.: Fullerene isomers of C 60: Kekulé counts versus stability. Chem. Phys. Lett. 228, 478 (1994)
Cyvin S.J., Gutman I.: in Kekulé Structures in Benzenoid Hydrocarbons, Lect. Notes Chem. 46. Springer, Heidelberg (1988)
Došlić T.: On lower bounds of number of perfect matchings in fullerene graphs. J. Math. Chem. 24, 359 (1998)
Došlić T.: On some structural properties of fullerene graphs. J. Math. Chem. 31, 187 (2002)
Došlić T.: Importance and redundancy in fullerene graphs. Croat. Chem. Acta 75, 869 (2002)
Došlić T.: Cyclical edge-connectivity of fullerene graphs and (k, 6)-cages. J. Math. Chem. 33, 103 (2003)
Došlić T.: Fullerene graphs with exponentially many perfect matchings. J. Math. Chem. 41, 183 (2007)
Došlić T.: Leapfrog fullerenes have many perfect matchings. J. Math. Chem. 44, 1 (2008)
Fowler P.W., Pisanski T.: Leapfrog transformations and polyhedra of Clar type. J. Chem. Soc. Faraday Trans. 90, 2865 (1994)
Fowler P.W., Manolopoulos D.E.: in An Atlas of Fullerenes. Clarendon Press, Oxford (1995)
Grünbaum B., Motzkin T.S.: The number of hexagons and the simplicity of geodesics on certain polyhedra. Can J. Math. 15, 744 (1963)
Harary F.: in Graph Theory. Addison-Wesley, Reading, MA (1969)
Klein D.J., Liu X.: Theorems for carbon cages. J. Math. Chem. 11, 199 (1992)
Kutnar K., Marušič D.: On cyclic edge connectivity of fullerenes. . Discrete Appl. Math. 156, 1661 (2008)
K. Kutnar, D. Marušič, D. Vukičević, On decompositions of leapfrog fullerenes, J. Math. Chem. doi:10.1007/s10910-008-9414-3
Lovász L., Plummer M.D.: in Matching Theory. North-Holland, Amsterdam (1986)
Marušič D.: Hamilton cycles and paths in fullerenes. J. Chem. Inf. Model. 47, 732 (2007)
Payan C., Sakarovitch M.: Ensembles cycliquement et graphes cubiques. Cahiers du Centre dÉtudes Rech. Opérationnelle 17, 319 (1975)
Qi Z., Zhang H.: A note on the cyclical edge-connectivity of fullerene graphs. J. Math. Chem. 43, 134 (2008)
Quian J., Zhang F.: On the number of Kekulé structures in capped zigzag nanotubes. J. Math. Chem. 38, 233 (2005)
West D.B.: in Introduction to Graph Theory. Prentice Hall, Upper Saddle River, NJ (1996)
Zhang H., Zhang F.: New lower bounds on the number of perfect matchings of fullerene graphs. J. Math. Chem. 30, 343 (2001)
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Došlić, T. Finding more perfect matchings in leapfrog fullerenes. J Math Chem 45, 1130–1136 (2009). https://doi.org/10.1007/s10910-008-9435-y
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DOI: https://doi.org/10.1007/s10910-008-9435-y