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8537886 
Journal Article 
Theoretical study of energy, inertia and nullity of phenylene and anthracene 
Ahmad, Z; Mufti, ZS; Nadeem, MF; Shaker, H; Siddiqui, HMA 
2021 
1 
Open Chemistry
EISSN: 2391-5420 
De Gruyter Open Ltd 
19 
1 
541-547 
English 
WOS:000682805000001 
Energy of a molecule plays an important role in physics, chemistry and biology. In mathematics, the concept of energy is used in graph theory to help other subjects such as chemistry and physics. In graph theory, nullity is the number of zeros extracted from the characteristic polynomials obtained from the adjacency matrix, and inertia represents the positive and negative eigenvalues of the adjacency matrix. Energy is the sum of the absolute eigenvalues of its adjacency matrix. In this study, the inertia, nullity and signature of the aforementioned structures have been discussed. © 2021 Zaheer Ahmad et al., published by De Gruyter. 
energy; inertia; nullity; topological indices