Results 1 to 10 of about 775 (185)

Normalized Sombor Indices as Complexity Measures of Random Networks. [PDF]

open access: yesEntropy (Basel), 2021
We perform a detailed computational study of the recently introduced Sombor indices on random networks. Specifically, we apply Sombor indices on three models of random networks: Erdös-Rényi networks, random geometric graphs, and bipartite random networks.
Aguilar-Sánchez R   +3 more
europepmc   +11 more sources

Sombor topological indices for different nanostructures. [PDF]

open access: yesHeliyon, 2023
Euclidean geometry is utilized to establish the Sombor graph parameter and its invariants. It is sum of all adjacent vertices in graph theory dϒ2+dΓ2 where dϒ is the degree of the vertex ϒ.
Imran M   +4 more
europepmc   +6 more sources

Chemical applicability of Sombor indices [PDF]

open access: yesJournal of the Serbian Chemical Society, 2021
Recently, a novel class of degree-based topological molecular descriptors was proposed, the so-called Sombor indices. Within this study, the predictive and discriminative potentials of the Sombor index, the reduced Sombor index, and the average Sombor ...
Redžepović Izudin
doaj   +6 more sources

On Some Topological Indices Defined via the Modified Sombor Matrix. [PDF]

open access: yesMolecules, 2022
Let G be a simple graph with the vertex set V={v1,…,vn} and denote by dvi the degree of the vertex vi. The modified Sombor index of G is the addition of the numbers (dvi2+dvj2)−1/2 over all of the edges vivj of G.
Zuo X, Rather BA, Imran M, Ali A.
europepmc   +4 more sources

Mean Sombor index [PDF]

open access: yesDiscrete Mathematics Letters, 2021
A Special Volume on Chemical Graph Theory in Memory of Nenad TrinajsticWe introduce a degree–based variable topological index inspired on the power (or generalized) mean. We name this new index as the mean Sombor index: SOα(G) = P uv∈E(G) [(d α u + d α v
J. A. Mendez-Bermudez   +3 more
doaj   +4 more sources

Eccentric sombor index of graphs and its role in the structure-property relationship analysis of polycyclic aromatic compounds. [PDF]

open access: yesSci Rep
This article focuses on the eccentric Sombor index, a variant of the degree-based Sombor index in which vertex degrees are replaced by their eccentricities.
Khaji B, Hanif S, Arathi Bhat K.
europepmc   +2 more sources

Data-driven regression analysis of amylose using Sombor molecular descriptors. [PDF]

open access: yesSci Rep
Amylose, a vital polysaccharide component of starch, plays a significant role in plant energy storage and has important implications in nutrition and health.
Mufti ZS   +4 more
europepmc   +2 more sources

Applications of Sombor topological indices and entropy measures for QSPR modeling of anticancer drugs: a Python-based methodology. [PDF]

open access: yesSci Rep
The development of effective anticancer drugs remains a central objective in pharmaceutical research. In recent years, topological indices (TIs) have gained considerable attention for their ability to numerically represent molecular structures and ...
Kara Y   +3 more
europepmc   +2 more sources

Comparative study of Sombor index and its various versions using regression models for top priority polycyclic aromatic hydrocarbons. [PDF]

open access: yesSci Rep
The aromatic compounds having structural configurations with two or more fused benzene rings are the polycyclic aromatic hydrocarbons (PAHs). Topological indices are valuable tools for studying the structure property relationships of PAHs and also helps ...
Kirana B, Shanmukha MC, Usha A.
europepmc   +2 more sources

QSPR analysis of anticancer drugs using the Euler-Sombor index and theoretical insights on its minimum value for unicyclic graphs. [PDF]

open access: yesSci Rep
Topological indices (TIs) are powerful tools for exploring the relationship between molecular structure and drug activity, offering a cost-effective alternative to experimental screening.
Shetty S, Rakshith BR, Udupa NVS.
europepmc   +2 more sources

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