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- Title
Computing the Energy and Estrada Index of Different Molecular Structures.
- Authors
Mufti, Zeeshan Saleem; Anjum, Rukhshanda; Xin, Qin; Tchier, Fairouz; Anwar-ul-Haq, Iram; Gaba, Yaé Ulrich
- Abstract
Graph energy is an invariant that is derived from the spectrum of the adjacency matrix of a graph. Graph energy is actually the absolute sum of all the eigenvalues of the adjacency matrix of a graph i.e. E = ∑ i = 1 n λ i , and the Estrada index of a graph G is elaborated as EE G = ∑ i = 1 n e λ i , where, λ 1 , λ 2 , ... , λ n are the eigenvalues of the adjacency matrix of a graph. In this paper, energy E G and Estrada index EE G of different molecular structures are obtained and also established inequalities among the exact and estimated values of energies and Estrada index of TUC 4 C 8 nanosheet and naphthalene.
- Subjects
TRADES Union Congress; MOLECULAR structure; EIGENVALUES; NAPHTHALENE
- Publication
Journal of Chemistry, 2022, p1
- ISSN
2090-9063
- Publication type
Article
- DOI
10.1155/2022/6227093