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math.CO2022
Tensor join of hypergraphs and its spectra
R. Vishnupriya, R. Rajkumar
In this paper, we introduce three operations on hypergraphs by using tensors. We show that these three formulations are equivalent and we commonly call them as the tensor join. We…
math.GR2022
Automorphism group of the reduced power (di)graph of a finite group
T. Anitha, R. Rajkumar
We describe the full automorphism group of the directed reduced power graph and the undirected reduced power graph of a finite group. We compute the full automorphism groups of the…