3 papers
math.CO2023
Inertia and spectral symmetry of the eccentricity matrices of a class of bi-block graphs
T. Divyadevi, I. Jeyaraman
The eccentricity matrix of a simple connected graph G is obtained from the distance matrix of G by retaining the largest non-zero distance in each row and column, and the remaining…
math.CO2022
The Moore-Penrose Inverse of the Distance Matrix of a Helm Graph
I. Jeyaraman, T. Divyadevi, R. Azhagendran
In this paper, we give necessary and sufficient conditions for a real symmetric matrix, and in particular, for the distance matrix of a helm graph to have their Moor…
math.CO2022
On Eccentricity Matrices of Wheel Graphs
I. Jeyaraman, T. Divyadevi
The eccentricity matrix of a simple connected graph is obtained from the distance matrix of by retaining the largest distance in each row and column, and by d…