S. Vaidya

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math.CO2026

Some New Results on Seidel Equienergetic Graphs

Samir K. Vaidya, Kalpesh M. Popat

The energy of a graph $G$ is the sum of the absolute values of the eigenvalues of the adjacency matrix of $G$ . Some variants of energy can also be found in the literature which are…

math.CO2024

Radio labelling of two-branch trees

Devsi Bantva, Samir Vaidya, Sanming Zhou

A radio labelling of a graph $G$ is a mapping $f : V (G) \to {0, 1, 2, \dots}$ such that $∣ f (u) - f (v) ∣ \geq d iam (G) + 1 - d (u, v)$ for every pair of distinct vertices $u, v$ …