L. de Lima

activity

20192026

most citedPositive and Negative Square Energies of Graphs

4 citations · 4 across the 7 of their papers we have counts for

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Showing 2022Show all

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math.CO2022

On graphs with eigenvectors in ${1, - 1, 0}$ and the max $k$ -cut problem

Jorge Alencar, Leonardo de Lima, Vladimir Nikiforov

In this paper, we characterize all graphs with eigenvectors of the signless Laplacian and adjacency matrices with components equal to ${- 1, 0, 1} .$ We extend the graph parameter…

On graphs with eigenvectors in {1,−1,0} and the max k-cut problem

On graphs with eigenvectors in ${1, - 1, 0}$ and the max $k$ -cut problem