Results 231 to 240 of about 39,692 (244)
Some of the next articles are maybe not open access.
On the General Sum–Connectivity Co–Index of Graphs
2011In this paper, a new molecular-structure descriptor, the general sum–connectivity co–index is considered, which generalizes the first Zagreb co–index and the general sum– connectivity index of graph theory. We mainly explore the lower and upper bounds in terms of the order and size for this new invariant.
SU, G., XU, L.
openaire +1 more source
Extremal Results and Bounds for Atom-Bond Sum-Connectivity Index
Match Communications in Mathematical and in Computer ChemistryThe ABS (atom-bond sum-connectivity) index is a topological index, that was introduced in 2022 by amalgamating the main ideas of two well-examined indices. Mathematical aspects (especially, extremal results and bounds) of the ABS index have already been studied considerably.
Akbar Ali +5 more
openaire +1 more source
The Sum-Connectivity Index - An Additive Variant of the Randić Connectivity Index
Current computer-aided drug design, 2013Applications of novel variant of the connectivity index that we call here the sum- connectivity index in structure-property modeling are reviewed. Accordingly, we named here the Randić connectivity index as the product-connectivity index. Correlations from literature that were obtained by one-descriptor models using both variants of connectivity ...
Bešlo, Drago +7 more
openaire +1 more source
Maximum Atom Bond Sum Connectivity Index of Cacti
The atom-bond sum-connectivity (ABS) index of a graph is a variant of several well-known chemical topological indices, such as the randi´c index, the sum-connectivity index and the atom-bond connectivity index. For a graph G = (V (G), E(G)), the ABS index of G is defined as <div>   ...Fangxia Wang +3 more
openaire +1 more source
Extremal values of the atom-bond sum-connectivity index in bicyclic graphs
Journal of Applied Mathematics and Computing, 2023Suresh Elumalai +2 more
exaly
Minimum general sum-connectivity index of unicyclic graphs
Journal of Mathematical Chemistry, 2010Zhibin Du, Bo Zhou, Nenad Trinajstić
exaly
On the general sum-connectivity index of trees with given number of pendent vertices
Discrete Applied Mathematics, 2017Qing Cui, Lingping Zhong
exaly
On the sum-connectivity spectral radius and sum-connectivity Estrada index of graphs.
Ars Comb., 2016Fuqin Zhan, Youfu Qiao
openaire
Relations between the general sum connectivity index and the line graph
Journal of Mathematical Chemistry, 2020Walter Carballosa +2 more
exaly