The Redefined First, Second and Third Zagreb Indices of Titania Nanotubes TiO2[m,n]
Wei Gao1, *, Mohammad R. Farahani2, Muhammad K. Jamil3, Muhammad K. Siddiqui4
1 School of Information Science and Technology, Yunnan Normal University, Kunming 650500, China
2 Department of Applied Mathematics, Iran University of Science and Technology (IUST) Narmak, Tehran, 16844, Iran
3 Department of Mathematics, Riphah Institute of Computing and Applied Sciences (RICAS) Riphah International University, 14 Ali Road Lahore, Pakistan
4 Department of Mathematics, Comsats Institute of Information Technology, Sahiwal, Pakistan
The first and the second Zagreb indices are two of the most thoroughly studied and oldest topological indices. Recently in 2013, Ranjini et al. re-defined the Zagreb indices, i.e., the redefined first, second and third Zagreb indices of a graph G are defined as
, respectively. In this research paper, we compute the redefined Zagreb indices of the Titania Nanotubes TiO2[m, n].
Keywords: Carbon nanotube, Degree of vertex, Molecular graphs, Nano structures, Redefined zagreb indices, Titania nanotubes, Topological indices, Zagreb indices.
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