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math.CO2021★ 5 cited
On the construction of cospectral nonisomorphic bipartite graphs
M. Rajesh Kannan, Shivaramakrishna Pragada, Hitesh Wankhede
In this article, we construct bipartite graphs which are cospectral for both the adjacency and normalized Laplacian matrices using partitioned tensor product. This extends the cons…
math.CO2021
Bounds for the extremal eigenvalues of gain Laplacian matrices
M. Rajesh Kannan, Navish Kumar, Shivaramakrishna Pragada
A complex unit gain graph (-gain graph), is a graph where the function assigns a unit complex number to each orientation of an edge of , and its inve…