Results 201 to 210 of about 1,417 (232)

On computation of information entropy measures for certain fractal molecular architectures. [PDF]

Front Chem
Roy S, Noah Antony Daniel Renai P, Jyothish K.   +2 more
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The greatest values for atom-bond sum-connectivity index of graphs with given parameters

Discrete Applied Mathematics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fengwei Li, Qingfang Ye, Huajing Lu
exaly   +2 more sources

On trees of a fixed maximum degree with extremal general atom-bond sum-connectivity index

Journal of Applied Mathematics and Computing
We consider general atom-bond sum-connectivity indices $ABS_l(G)$ for $1/2 \leq l \leq 1$ and study their values over all trees on a given number of vertices with a fixed maximum degree $\Delta $. We obtain both the minimum and the maximum values and characterize the corresponding trees.
Akbar Ali, Tomislav Doslic, Zahid Raza   +2 more
exaly   +2 more sources

Extremal values of the atom-bond sum-connectivity index in bicyclic graphs

Journal of Applied Mathematics and Computing, 2023
Suresh Elumalai, Selvaraj Balachandran, Sourav Mondal   +2 more
exaly   +2 more sources

On the Maximum Atom-Bond Sum-Connectivity Index of Trees

MATCH – Communications in Mathematical and in Computer Chemistry, 2023
Topological indices have been under study since 1947 when H. Wiener proposed a mathematical formula to order the boiling temperatures of isomers of alkanes. Since then, over 3000 similar mathematical formulae have been defined and studied by mathematicians, chemists and by other scientists.
Hu, Yarong, Wang, Fangxia
openaire   +1 more source

On difference between atom-bond sum-connectivity index and Randić index of graphs

Journal of Applied Mathematics and Computing
Suresh Elumalai, Selvaraj Balachandran, Sourav Mondal   +2 more
exaly   +3 more sources

On the atom-bond sum-connectivity index of chemical graphs

Journal of Molecular Structure
Akbar Jahanbani, Hajar Shooshtari
exaly   +2 more sources

A Variant of Atom Bond Sum Connectivity Index

Match Communications in Mathematical and in Computer Chemistry
Summary: Topological index is a numerical graph invariant derived from molecular graph. The atom bond sum connectivity index drew a lot of interest from chemical graph theorists in a short period of time. Nowadays, the degree sum of a vertex's first neighbors is recognized as a useful parameter in chemical graph theory. Keeping these two facts in mind,
Yasin H, Mohammed, M, Suresh, Mondal, Sourav   +2 more
openaire   +1 more source