Enide Andrade

activity

20172026

most citedNew lower bounds for the energy of matrices and graphs

1 citations · 1 across the 11 of their papers we have counts for

collaborators

Showing 2018Show all

4 papers · 1 filter

math.SP2018

Bounds for Different Spreads of Line and Total Graphs

E. Andrade, E. Lenes, E. Mallea +2

In this paper we explore some results concerning the spread of the line and the total graph of a given graph. In particular, it is proved that for an $(n, m)$ connected graph $G$ wi…

math.SP2018

Lower bounds for Laplacian spread and relations with invariant parameters revisited

Enide Andrade, Maria Aguieiras A. de Freitas, María Robbiano +1

Let $G = (V (G), E (G))$ be an $(n, m)$ -graph and $X$ a nonempty proper subset of $V (G)$ . Let $X^{c}=V\left( G\right) \ba…

math.SP2018

New Bounds for the Signless Laplacian Spread

Enide Andrade, Geir Dahl, Laura Leal +1

Let $G$ be a simple graph. The signless Laplacian spread of $G$ is defined as the maximum distance of pairs of its signless Laplacian eigenvalues. This paper establishes some new b…

math.SP2018

Block matrices and Guo's Index for block circulant matrices with circulant blocks

Enide Andrade, Cristina Manzaneda, Hans Nina +1

In this paper we deal with circulant and partitioned into $n$ -by- $n$ circulant blocks matrices and introduce spectral results concerning this class of matrices. The problem of find…