Results 11 to 20 of about 101,413 (261)
M-polynomial-based topological indices of metal-organic networks
Main Group Metal Chemistry, 2021 Topological index (TI) is a numerical invariant that helps to understand the natural relationship of the physicochemical properties of a compound in its primary structure.
Kashif Agha +3 more
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Neighborhood M-polynomial of titanium compounds
Arabian Journal of Chemistry, 2021 Abstract The neighborhood M-polynomial is effective in recovering neighborhood degree sum based topological indices that predict different physical, chemical and biological characteristics of material under investigation. In this work, the neighborhood M-polynomial of Titania nanotube TiO 2 and the crystallographic structure of ...
Sourav Mondal +3 more
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M-Polynomials and Topological Indices of Titania Nanotubes [PDF]
Symmetry, 2016 Titania is one of the most comprehensively studied nanostructures due to its widespread applications in production of catalytic, gas- sensing and corrosion- resistance materials [1]. M-polynomial of nanotubes has been vastly investigated as it produces many degree-based topological indices which are numerical parameters capturing structural and ...
Mobeen Munir +4 more
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On topological polynomials and indices for metal-organic and cuboctahedral bimetallic networks
Main Group Metal Chemistry, 2022 A molecular graph consists of bonds and atoms, where atoms are present as vertices and bonds are present as edges. We can look at topological invariants and topological polynomials that furnish bioactivity and physio-chemical features for such molecular ...
Yasmeen Farhana +4 more
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The M-Polynomial and Nirmala index of Certain Composite Graphs
Tikrit Journal of Pure Science, 2022 The M-Polynomial and Nirmala index are considered as two of the most recent found and important subjects in chemical graph theory. In this paper we drive and prove the computing formula of Nirmala index from the M-Polynomial, then compute the M ...
Akar H. Karim +2 more
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M-Polynomial and Related Topological Indices of Nanostar Dendrimers [PDF]
Symmetry, 2016 Dendrimers are highly branched organic macromolecules with successive layers of branch units surrounding a central core. The M-polynomial of nanotubes has been vastly investigated as it produces many degree-based topological indices. These indices are invariants of the topology of graphs associated with molecular structure of nanomaterials to correlate
Mobeen Munir +3 more
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M-Polynomials and Associated Topological Indices of Sodalite Materials [PDF]
Mathematical Problems in Engineering, 2021 Natural zeolites are commonly described as macromolecular sieves. Zeolite networks are very trendy chemical networks due to their low-cost implementation. Sodalite network is one of the most studied types of zeolite networks. It helps in the removal of greenhouse gases.
Ghazanfar Abbas +4 more
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M-polynomial and topological indices of zigzag edge coronoid fused by starphene
Open Chemistry, 2020 Chemical graph theory is a subfield of graph theory that studies the topological indices for chemical graphs that have a good correlation with chemical properties of a chemical molecule.
Afzal Farkhanda +3 more
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M-polynomial revisited: Bethe cacti and an extension of Gutman’s approach [PDF]
Journal of Applied Mathematics and Computing, 2018 The $M$-polynomial of a graph $G$ is defined as $\sum_{i\le j} m_{i,j}(G)x^iy^j$, where $m_{i,j}(G)$, $i,j\ge 1$, is the number of edges $uv$ of $G$ such that $\{d_v(G), d_u(G)\} = \{i,j\}$. Knowing the $M$-polynomial, formulas for bond incident degree indices (an important subclass of degree-based topological indices) can be obtained by means of ...
Emeric Deutsch, Sandi Klavzar
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Topological Characterization of the Third Type of Triangular Hex-derived Networks
Scientific Annals of Computer Science, 2021 A topological index is a numerical quantity that defines a chemical descriptor to report several physical, biological and chemical properties of a chemical structure. In recent literature, various degree-based topological indices of a molecular structure
Shibsankar Das, Shikha Rai
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