Results 11 to 20 of about 1,607 (200)

Analysis of Bismuth (III) Iodide and Dendrimers in Drug Applications

Journal of Chemistry, 2022
Dendrimers are spherical three-dimensional molecules with a repetitively branching core. They are normally symmetric around the core. Bismuth (III) iodide has the formula BiI3 and is an inorganic chemical. The reaction between bismuth and iodine produces
Shahid Amin, M. A. Rehman, Amir Naseem, Jihad Younis, Syed Sheraz Asghar   +4 more
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Nirmala and Banhatti-Sombor Index over Tensor and Cartesian Product of Special Class of Semigroup Graphs

Journal of Mathematics, 2022
The Nirmala and first Banhatti-Sombor index which is originated from Sombor index is designated by NG=∑uv∈EGdu+dv and BSO1G=∑uv∈EG1/du2+dv2, respectively.
Seda Oğuz Ünal
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Graphs with given connectivity and their minimum Sombor index having applications to QSPR studies of monocarboxylic acids [PDF]

Heliyon
The Sombor index, introduced by Gutman in 2021, represents a novel graphical topological descriptor reliant upon graph degree information. It holds promise for elucidating the thermodynamic behavior of compounds.
Sakander Hayat, Muhammad Arshad, Asad Khan   +2 more
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Data-driven regression analysis of amylose using Sombor molecular descriptors [PDF]

Scientific Reports
Amylose, a vital polysaccharide component of starch, plays a significant role in plant energy storage and has important implications in nutrition and health.
Zeeshan Saleem Mufti, Muhammad Asim, A. S. Shflot, Syed Tauseef Saeed, Jihad Younis   +4 more
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QSPR analysis of anticancer drugs using the Euler–Sombor index and theoretical insights on its minimum value for unicyclic graphs [PDF]

Scientific Reports
Topological indices (TIs) are powerful tools for exploring the relationship between molecular structure and drug activity, offering a cost-effective alternative to experimental screening.
Swathi Shetty, B. R. Rakshith, N. V. Sayinath Udupa   +2 more
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Sombor characteristic values of cographs [PDF]

Heliyon
A unique class of cograph is examined, that is defined recursively as C=C(n1)=K‾n1, and C=C(n1,n2,…,ni)=C(n1,n2,…,ni−1)∪Kni‾, for 2≤i≤k. The Sombor spectrum of C is calculated, the Sombor spectral radius and establish the sharp bounds for the Sombor ...
Zahid Raza, Bilal Ahmad Rather, Muhammad Imran   +2 more
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Investigating Seidel energies and thermodynamic properties of benzenoid hydrocarbons through regression models [PDF]

Scientific Reports
In this article, we present the concept of extended Seidel energy by employing a generalized extended matrix to study various molecular properties, including the Kovats retention index, boiling point, enthalpy of formation, entropy, acentric factor, and ...
Rashad Ismail, Hafiz Muhammad Bilal, Kiran Naz, Sarfraz Ahmad, Muhammad Kamran Siddiqui, Mustafa Ahmed Ali   +5 more
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On Some Topological Indices Defined via the Modified Sombor Matrix [PDF]

Molecules, 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.
Xuewu Zuo, Bilal Ahmad Rather, Muhammad Imran, Akbar Ali   +3 more
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On Sombor index of trees

Applied Mathematics and Computation, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Das, Kinkar Chandra, Gutman, Ivan
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Multiplicative Sombor index of trees [PDF]

Notes on Number Theory and Discrete Mathematics
For a graph Ώ, the multiplicative Sombor index is defined as Π_{SO}(Ω)=Π_{ab∈ε(Ω)} √(d²_Ω(a)+d²_Ω(b)), where d_Ώ(a) is the degree of vertex a. Liu [Liu, H. (2022). Discrete Mathematics Letters, 9, 80-85] showed that, when 𝓣 is a tree of order n, Π_{SO}(𝓣)
Nasrin Dehgardi, Zhibin Du, Yilun Shang
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