Results 21 to 30 of about 4,880,200 (189)

On the Difference of Atom-Bond Sum-Connectivity and Atom-Bond-Connectivity Indices [PDF]

open access: yes, 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
core   +1 more source

Topological aspects of some dendrimer structures

open access: yesNanotechnology 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
doaj   +1 more source

Computing three topological indices for Titania nanotubes TiO2[m,n]

open access: yesAKCE 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
doaj   +1 more source

Some inequalities for the atom-bond connectivity index of graph operations [PDF]

open access: yes, 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
core   +1 more source

Topological Indices of Families of Bistar and Corona Product of Graphs

open access: yesJournal 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
doaj   +1 more source

Atom-bond-connectivity index of certain graphs

open access: yes, 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.
core   +1 more source

On Multiplicative Topological Invariants of Magnesium Iodide Structure

open access: yesJournal 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
doaj   +1 more source

Fourth Atom-Bond Connectivity Index of an Infinite Class of Nanostar Dendrimer D3[n] [PDF]

open access: yes, 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
core   +1 more source

Relating the ABC and harmonic indices [PDF]

open access: yesJournal of the Serbian Chemical Society, 2014
The atom-bond connectivity (ABC) index is a much-studied molecular structure descriptor, based on the degrees of the vertices of the molecular graph.
Gutman Ivan, Zhong Lingping, Xu Kexiang
doaj   +1 more source

p190A/ARHGAP35 and p190B/ARHGAP5 proteins in endometrial cancer: a novel cancer‐relevant paralog interplay

open access: yesMolecular Oncology, EarlyView.
This study identifies ARHGAP5, in addition to the frequently mutated ARHGAP35, as significantly mutated in endometrial cancer. Mutations in both genes co‐occur and are associated with their correlated downregulation. Functional CRISPR studies show that both paralogs regulate similar pathways, including actin cytoskeleton organization.
Mathilde Pinault   +12 more
wiley   +1 more source

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