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5 papers
Constructions of -cospectral graphs using some corona operations
Najiya V K, Chithra A
Let ,$ G_1 \sqcupdot G_2 $ and $ G_1 \sqcupplus G_2$ denote the total corona, -vertex corona and -edge corona of two graphs and , respecti…
-energy of graphs formed by some unary operations
Najiya V K, Chithra A
Let be a graph on vertices with adjacency matrix and degree matrix . For each , the -matrix is defined as . In…
A study on -spectrum and -energy of unitary addition Cayley graphs
Najiya V K, Chithra A, Naveen Palanivel
The unitary addition Cayley graph , is the graph whose vertex set is , the ring of integers modulo and two vertices and are adjacent if and only if…
A study on -coalescence of two graphs
Najiya V K, Chithra A
The -coalescence of two graphs is obtained by merging a -clique of each graph. The -matrix of a graph is the convex combination of its degree matrix and adjacency matrix…
Construction of non-regular -cospectral graphs from some join of graphs
Najiya V K, Chithra A
Cospectral graphs are a fascinating concept in graph theory, where two non-isomorphic graphs possess identical sets of eigenvalues. In this paper, we compute the -characterist…