Ambat Vijayakumar

Abstract

The distance matrix of a connected graph $G$ is an $n \times n$ matrix $D(G) = [d_{ij}]$, where $d_ij$ is the distance between the vertices $v_i$ and $v_j$ . The distance spectrum of $G$ is ${\lambda_1, . . . , \lambda_n}$, where $\lambda_i$ are the...