60 citations · 151 across the 8 of their papers we have counts for
5 papers · 1 filter
Laplacian Estrada index of trees
Aleksandar Ilic, Bo Zhou
Let be a simple graph with vertices and let be the eigenvalues of its Laplacian matrix. The Laplacian…
On the extremal properties of the average eccentricity
Aleksandar Ilic
The eccentricity of a vertex is the maximum distance from it to another vertex and the average eccentricity of a graph is the mean value of eccentricities of all vert…
On the Wiener index and Laplacian coefficients of graphs with given diameter or radius
Aleksandar Ilic, Andreja Ilic, Dragan Stevanovic
Let be a simple undirected -vertex graph with the characteristic polynomial of its Laplacian matrix , . It is we…
The largest Hosoya indices of unicyclic graphs
Guihai Yu, Lihua Feng, Aleksandar Ilic
The Hosoya index of a graph is defined as the total number of edge independent sets of . In this paper, we extend the research of [J. Ou, On extremal unicyclic molec…
On Distance Spectral Radius and Distance Energy of Graphs
Bo Zhou, Aleksandar Ilic
For a connected graph, the distance spectral radius is the largest eigenvalue of its distance matrix, and the distance energy is defined as the sum of the absolute values of the ei…