Signed graphs with small positive index of inertia
2016 ◽
Vol 31
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pp. 232-243
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In this paper, the signed graphs with one positive eigenvalue are characterized, and the signed graphs with pendant vertices having exactly two positive eigenvalues are determined. As a consequence, the signed trees, the signed unicyclic graphs and the signed bicyclic graphs having one or two positive eigenvalues are characterized.
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2013 ◽
Vol 29
(11)
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pp. 2193-2208
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2014 ◽
Vol 443
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pp. 153-163
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2013 ◽
Vol 438
(5)
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pp. 2036-2045
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2010 ◽
Vol 111
(12)
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pp. 2760-2770
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