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math.CO2026
Eccentricity energy change of coalescence of graphs due to edge deletion
Anjitha Ashokan, Chithra A
The eccentricity matrix of a graph is obtained from the distance matrix by keeping the largest entries in their row or column, and the remaining entries are replaced by zeros. The…
math.CO2025
On the Estrada Index and Spectral Properties of -Uniform Hypergraphs
Liya Jess Kurian, Chithra A.
Various properties of a hypergraph can be explored through its spectrum. In this paper,we estimate the bound for the sum of , largest eigenvalues of a -uniform hy…
math.CO2024
The spectrum of the Corona of Hypergraphs
Liya Jess Kurian, Chithra A.
The corona of hypergraphs is an extension of the corona operation applied to graphs. The corona of two hypergraphs is obtained by taking copies of $G_1^…