Abstract
A graph is called integral, if all of its eigenvalues are integers. In this paper, we give some results about integral pentavalent Cayley graphs on abelian or dihedral groups.
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Abdollahi A and Vatandoost E, Which Cayley graphs are integral? Electronic J. Combinatorics 16 (2009) #R122
Abdollahi A and Vatandoost E, Integral quartic Cayley graphs abelian groups, Electronic J. Combinatorics 18 (2011) #P89
Ahmadi O, Alon N, Blake I F and Shparlinski I E, Graphs with integral spectrum, Linear Algebra and its Applications 430 (2009) 547–552
Babai L, Spectra of Cayley graphs, J. Combinatorial Theory Ser. B 27 (1979) 180–189
Bussemaker F C and Cvetković D, There are exactly 13 connected, cubic, integral graphs, Univ. Beograd, Publ. Elektrotehn. Fak., Ser Mat., Fiz. 544–567 (1976) 43–48
Cvetković D, Cubic integral graphs, Univ. Beograd, Publ. Elektrotehn. Fak., Ser. Mat. Fiz. 498–541 (1975) 107–113
Friedman H D, On the impossibility of certain Moore graphs, J. Combin. Theory Ser. B 10 (1971) 245–252
Harary F and Schwenk A J, Which graphs have integral spectra? Graphs and Combinatorics 390 (1974) 45–51
James G and Liebeck M, Representations and Characters of Groups (1993) (Cambridge: Cambridge University Press)
Klotz W and Sander T, Some properties of unitary Cayley graphs, Electronic J. Combinatorics 14 (1) (2007) Research Paper 45, 12 pp
Sander T, Sudoku graphs are integral, Electronic J. Combinatorics 16 (2009) #N25
Schwenk A J, Exactly thirteen cubic graphs have integral spectra, Theory and applications of graphs (Proc. Internat. Conf., Western Mich. Univ., Kalamazoo, Mich., 1976) (1978) (Berlin: Springer) vol. 642
So W, Integral circulant graphs, Discrete Math. 306 (2006) 153–158
Stevaović D, 4-Regular ingraphs avoiding ±3 in the spectrum, Univ. Beograd. Publ. Elektrotehn. Fak. Ser. Mat. 14 (2003) 99–110
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GHASEMI, M. Integral pentavalent Cayley graphs on abelian or dihedral groups. Proc Math Sci 127, 219–224 (2017). https://doi.org/10.1007/s12044-017-0332-9
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DOI: https://doi.org/10.1007/s12044-017-0332-9