Results 31 to 40 of about 4,436,056 (266)

On the general atom-bond sum-connectivity index

AIMS Mathematics, 2023
<abstract><p>This paper is concerned with a generalization of the atom-bond sum-connectivity (ABS) index, devised recently in [A. Ali, B. Furtula, I. Redžepović, I. Gutman, Atom-bond sum-connectivity index, <italic>J. Math. Chem.</italic>, <bold>60</bold> (2022), 2081-2093].
Abeer M. Albalahi, Zhibin Du, Akbar Ali
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Sum Connectivity Index Under the Cartesian and Strong Products Graph of Monogenic Semigroup

International Journal of Analysis and Applications, 2023
This field’s main feature is to implement the sum connectivity index method. This sum connectivity index method can solve the monogenic semigroups under the cartesian and strong products.
R. Rajadurai, G. Sheeja
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Amplified eccentric connectivity index of graphs [PDF]

, 2022
A new distance based graphical index, coined as ampli ed eccentric connec- tivity index, has been established and the formulae to calculate the ampli ed eccentric connectivity index of some standard graphs, Dutch windmill graph and molecular graph of ...
Puneeth, S., Sujatha, H. N., Mathad, V.
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Topological Indices of Certain Transformed Chemical Structures

Journal of Chemistry, 2020
Topological indices like generalized Randić index, augmented Zagreb index, geometric arithmetic index, harmonic index, product connectivity index, general sum-connectivity index, and atom-bond connectivity index are employed to calculate the bioactivity ...
Xuewu Zuo, Jia-Bao Liu, Hifza Iqbal, Kashif Ali, Syed Tahir Raza Rizvi   +4 more
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Topological Indices of the Pent-Heptagonal Nanosheets VC5C7 and HC5C7

Advances in Materials Science and Engineering, 2019
In this paper, we computed the topological indices of pent-heptagonal nanosheet. Formulas for atom-bond connectivity index, fourth atom-bond connectivity index, Randić connectivity index, sum-connectivity index, first Zagreb index, second Zagreb index ...
Fei Deng, Xiujun Zhang, Mehdi Alaeiyan, Abid Mehboob, Mohammad Reza Farahani   +4 more
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Reproducibility of functional connectivity and graph measures based on the Phase Lag Index (PLI) and weighted Phase Lag Index (wPLI) derived from high resolution EEG [PDF]

, 2014
Functional connectivity (FC) and graph measures provide powerful means to analyze complex networks. The current study determines the inter-subject-variability using the coefficient of variation (CoV) and long-term test-retest-reliability (TRT) using the ...
Florian Hatz, Christian Schindler (71594), Hardmeier, M., Cornelis Jan Stam (640429), Fuhr, Peter, Martin Hardmeier, Habib Bousleiman, Christian Schindler, Peter Fuhr, Hardmeier, Martin, Peter Fuhr (640430), Stam, C.J., Stam, Cornelis Jan, Habib Bousleiman (640428), Hatz, F., Fuhr, P., Martin Hardmeier (146865), Schindler, Christian, Cornelis Jan Stam, Schindler, C., Bousleiman, Habib, Florian Hatz (640427), Hatz, Florian, Bousleiman, H.   +23 more
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Topological Evaluation of Four Para-Line Graphs Absolute Pentacene Graphs Using Topological Indices

International Journal of Analysis and Applications, 2023
A real-number to molecular structure mapping is a topological index. It is a graph invariant method for describing physico-chemical properties of molecular structures specific substances. In that article, We examined pentacene’s chemical composition. The
Mukhtar Ahmad, Muhammad Jafar Hussain, Gulnaz Atta, Sajid Raza, Irfan Waheed, Ather Qayyum   +5 more
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On Sum--Connectivity Index of Bicyclic Graphs

, 2009
We determine the minimum sum--connectivity index of bicyclic graphs with $n$ vertices and matching number $m$, where $2\le m\le \lfloor\frac{n}{2}\rfloor$, the minimum and the second minimum, as well as the maximum and the second maximum sum--connectivity indices of bicyclic graphs with $n\ge 5$ vertices. The extremal graphs are characterized.
Du, Zhibin, Zhou, Bo
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Bond-additive Modeling. 3. Comparison between the Product-connectivity Index and Sum-connectivity Index [PDF]

, 2010
Using the framework of a previously defined procedure (Refs. 16 and 17), we compared the Randić (product-)connectivity index and the sum-connectivity index for the benchmark sets of molecules, that is, 18 octanes, 82 polycyclic aromatic hydrocarbons ...
Damir Vukičević, Trinajstić, Nenad, Nenad Trinajstić, Vukičević, Damir   +3 more
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On the Randic and Sum-Connectivity Index of Nanotubes [PDF]

Annals of West University of Timisoara - Mathematics, 2013
Milan Randi´ c proposed in 1975 a structural descrip- tor called the branching index that later became the well-known Randic connectivity index; it is defined on the ground of vertex degrees χ(G )= e=uv∈E(G) 1 √ dudv . In 2008, B. Zhou and N. Trinajstiproposed another connectivity index, named the Sum- connectivity index X(G).In this paper, we focus on
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