arXiv:1809.08594 Abstract | arXiv Analytics

Published 2018-09-23Version 1

We give a counterexample to a conjecture of Wang and Hou related with the sum of the $k$ largest Laplacian eigenvalues of signed graphs.

Comments: 3 pages, 2 figures

Categories: math.CO

Subjects: 05C50

Keywords: signed graphs, counterexample, conjecture

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