Results 21 to 30 of about 4,883,509 (244)
Some bounds on the modified Randic index [PDF]
Kragujevac Journal of Science, 2015 In this paper, we present some new lower and upper bounds for the modified Randic index in terms of maximum, minimum degree, girth, algebraic connectivity, diameter and average distance.
Mahsa Hemmasi, Ali Iranmanesh
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On the Difference of Atom-Bond Sum-Connectivity and Atom-Bond-Connectivity Indices [PDF]
, 2023 The atom-bond-connectivity (ABC) index is one of the well-investigated degree-based topological indices. The atom-bond sum-connectivity (ABS) index is a modified version of the ABC index, which was introduced recently.
Redzepovic, Izudin +5 more
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Topological aspects of some dendrimer structures
Nanotechnology Reviews, 2018 A numerical number associated to the molecular graph G that describes its molecular topology is called topological index. In the study of QSAR and QSPR, topological indices such as atom-bond connectivity index, Randić connectivity index, geometric index,
Aslam Adnan +3 more
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Computing three topological indices for Titania nanotubes TiO2[m,n]
AKCE International Journal of Graphs and Combinatorics, 2016 A numeric quantity which characterizes the whole structure of a graph is called a topological index. The concept of Generalized Zagreb, atom–bond connectivity (ABC) and geometric–arithmetic (GA) topological indices was established in chemical graph ...
Jia-Bao Liu +3 more
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Some inequalities for the atom-bond connectivity index of graph operations [PDF]
, 2011 The atom-bond connectivity index is a useful topological index in studying the stability of alkanes and the strain energy of cycloalkanes. In this paper some inequalities for the atom-bond connectivity index of a series of graph operations are presented.
G.H. Fath-Tabar +7 more
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Topological Indices of Families of Bistar and Corona Product of Graphs
Journal of Mathematics, 2022 Topological indices are graph invariants that are used to correlate the physicochemical properties of a chemical compound with its (molecular) graph. In this study, we study certain degree-based topological indices such as Randić index, Zagreb indices ...
A. Khalid +5 more
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Atom-bond-connectivity index of certain graphs
, 2023 . The ABC index is one of the most applicable topological graph indices and several properties of it has been studied already due to its extensive chemical applications. Several variants of it have also been defined and used for several reasons.
Prakasha, K. N., Reddy, P. S. K.
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On Multiplicative Topological Invariants of Magnesium Iodide Structure
Journal of Mathematics, 2022 In recent times, the applications of graph theory in molecular and chemical structure research have far exceeded human expectations and have grown exponentially.
Zhiqiang Zhang +5 more
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Atom bond connectivity index of molecular graphs of alkenes and cycloalkenes [PDF]
, 2017 The atom-bond connectivity (ABC) index is one of the recently most investigated degree based molecular structure descriptors that have applications in chemistry.
Mohd Atan, Kamel Ariffin +11 more
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Fourth Atom-Bond Connectivity Index of an Infinite Class of Nanostar Dendrimer D3[n] [PDF]
, 2008 The atom-bond connectivity (ABC) index of a graph G is a connectivity topological index was defined as  where dv denotes the degree of vertex v of G. In 2010, M. Ghorbani et. al.
Mohammad Reza Farahani +1 more
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