6 papers
On the distance spectral gap and construction of D-equienergetic graphs
Haritha T, Chithra A.
Let denote the distance matrix of a connected graph with vertices. The distance spectral gap of a graph is defined as , where and $ρ_2…
On the resistance regular graphs
Haritha T, Chithra A
For a connected graph , its resistance distance matrix is denoted by . A graph is called resistance regular if all the row (or column) sums of are equal. We provide…
Resistance distance and Kirchhoff index in central vertex join and central edge join of two graphs
Haritha T, Chithra A
The central graph of a graph is the graph obtained by inserting a new vertex into each edge of exactly once and joining all the non-adjacent vertices in . Let $G_…
Resistance distance in -coalescence of certain graphs
Haritha T, Chithra A
Any graph can be considered as a network of resistors, each of which has a resistance of The resistance distance between a pair of vertices and in a graph i…
Distance Seidel matrix of a connected graph
Haritha T, Chithra A.
For a connected graph , we present the concept of a new graph matrix related to its distance and Seidel matrix, called distance Seidel matrix . Suppose that th…
On the distance spectrum and distance-based topological indices of central vertex-edge join of three graphs
Haritha T, Chithra A. V.
Topological indices are molecular descriptors that describe the properties of chemical compounds. These topological indices correlate specific physico-chemical properties like boil…