For every graph, min{s+, s-} is at least 2m/chi_vec(G), resolving a conjecture of Wocjan, Elphick and Anekstein.
Cliques and the spectral rad ius
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Conic programming to understand sums of squares of eigenvalues of graphs
For every graph, min{s+, s-} is at least 2m/chi_vec(G), resolving a conjecture of Wocjan, Elphick and Anekstein.