On the eigenvalues of signed complete bipartite graphs

S. Pirzada, Tahir Shamsher, Mushtaq A. Bhat

Let $\Gamma =(G,\sigma )$ be a signed graph, where $\sigma$ is the sign function on the edges of $G$. The adjacency matrix of $\Gamma =(G,\sigma )$ is a square matrix $A(\Gamma )=A(G,\sigma )=\left(a_{ij}^{\sigma }\right)$, wh…