O. Rojo

activity

20122019

most citedSpectral results for the dominating induced matching problem

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

collaborators

Showing 2017Show all

3 papers · 1 filter

math.CO2017

On the $α$ -index of graphs with pendent paths

Vladimir Nikiforov, Oscar Rojo

Let $G$ be a graph with adjacency matrix $A (G)$ and let $D (G)$ be the diagonal matrix of the degrees of $G$ . For every real $α \in [0, 1]$ , write $A_{α} (G)$ fo…

math.CO2017★ 1 cited

Computing the $A_{α} -$ eigenvalues of a bug

Oscar Rojo

Let $G$ be a simple undirected graph. For $α \in [0, 1]$ , let \begin{equation*} A_α\left( G\right) =αD\left( G\right) +(1-α)A\left( G\right) , \end{equation*} where $A (G)$ is the adj…

math.CO2017★ 1 cited

$A_{α}$ -spectrum of a graph obtained by copies of a rooted graph and applications

Oscar Rojo

Given a connected graph $R$ on $r$ vertices and a rooted graph $H,$ let $R {H}$ be the graph obtained from $r$ copies of $H$ and the graph $R$ by identifying the root of the $i-th…

On the α-index of graphs with pendent paths

Computing the Aα​− eigenvalues of a bug

Aα​-spectrum of a graph obtained by copies of a rooted graph and applications

On the $α$ -index of graphs with pendent paths

Computing the $A_{α} -$ eigenvalues of a bug

$A_{α}$ -spectrum of a graph obtained by copies of a rooted graph and applications