A note on graphs with two main eigenvalues
Kragujevac Journal of Mathematics, Tome 24 (2002), p. 43
Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts
Kragujevac J. Math. 24 (2002) 43-53.
A NOTE ON GRAPHS WITH TWO MAIN
EIGENVALUESMirko LepovicDepartment of Mathematics, Faculty of Science, University of
Kragujevac,34000 Kragujevac, Yugoslavia
(Received February 25, 2002)
Abstract. Let G be a simple connected or
disconnected graph which has exactly two main eigenvalues. Let
Gk = G \ k be the corresponding vertex deleted
subgraph of G. If Gi and Gj are cospectral in this paper
we prove that their complementary graphs Gi
and
Gj are also cospectral.
@article{KJM_2002_24_a3,
author = {Mirko Lepovi\'c},
title = {A note on graphs with two main eigenvalues},
journal = {Kragujevac Journal of Mathematics},
pages = {43 },
publisher = {mathdoc},
volume = {24},
year = {2002},
zbl = {1027.05062},
language = {en},
url = {http://geodesic.mathdoc.fr/item/KJM_2002_24_a3/}
}
Mirko Lepović. A note on graphs with two main eigenvalues. Kragujevac Journal of Mathematics, Tome 24 (2002), p. 43 . http://geodesic.mathdoc.fr/item/KJM_2002_24_a3/