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math.CO2022★ 1 cited
On the spectrum and energy of Seidel matrix for chain graphs
Santanu Mandal, Ranjit Mehatari, Kinkar Chandra Das
We study various spectral properties of the Seidel matrix of a connected chain graph. We prove that is always an eigenvalue of and all other eigenvalues of can hav…
math.CO2022
Distance-regular Cayley graphs over dicyclic groups
Xueyi Huang, Kinkar Chandra Das, Lu Lu
The characterization of distance-regular Cayley graphs originated from the problem of identifying strongly regular Cayley graphs, or equivalently, regular partial difference sets.…