Search Results - "França, F.A.M."

Positive semidefiniteness of Aα(G) on some families of graphs by Brondani, A.E., França, F.A.M., Oliveira, C.S.

“…Let G be a connected graph of order n,  A(G) the adjacency matrix of G and D(G) the diagonal matrix of the row-sums of A(G). For every real α∈[0,1], Nikiforov…”
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The main eigenvalues of signed graphs by Akbari, S., França, F.A.M., Ghasemian, E., Javarsineh, M., de Lima, L.S.

“…A signed graph Gσ is an ordered pair (V(G),E(G)), where V(G) and E(G) are the set of vertices and edges of G, respectively, along with a map σ that signs every…”
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