Results 81 to 90 of about 775 (185)

SOMBOR INDEX AND ITS GENERALIZATION OF POWER GRAPH OF SOME GROUP WITH PRIME POWER ORDER [PDF]

open access: yes
Graphs are an intriguing topic of discussion due to their numerous applications, particularly in chemistry. Topological indices derived from graph representations of molecules enable us to predict various properties of these compounds, including their ...
Hijriati, Na'imah   +3 more
core   +2 more sources

Entropies and Degree-Based Topological Indices of Generalized Sierpiński Graphs

open access: yesFractal and Fractional
Fractals are geometric patterns that appear self-similar across all length scales and are constructed by repeating a single unit on a regular basis. Entropy, as a core thermodynamic function, is an extension based on information theory (such as Shannon ...
Si-Ao Xu, Jia-Dong Si, Jia-Bao Liu
doaj   +1 more source

The use of satellite images in the field of agriculture [PDF]

open access: yesZbornik radova Departmana za geografiju, turizam i hotelijerstvo, 2018
The use of remote sensing in the field of agriculture is very diverse. It includes detection of the amount of chlorophyll in crops, the amount of water, the detection of pests, the creation of maps for selective spraying and feeding, etc.
Grujić Nastasija   +2 more
doaj   +1 more source

Sombor-index-like invariants of some graphs

open access: yes, 2022
The Sombor index (SO) is a vertex-degree-based graph invariant, defined as the sum over all pairs of adjacent vertices of $\sqrt{d_i^2+d_j^2}$, where $d_i$ is the degree of the $i$-th vertex. It has been conceived using geometric considerations. Recently,
Alikhani, Saeid, Ghanbari, Nima
core  

SOMBOR INDICES OF CERTAIN GRAPH OPERATORS

open access: yesInternational Journal of Engineering Sciences & Research Technology, 2021
Recently, Gutman considered a class of novel graph invariants of which the Sombor index was defined. In this paper, we study the certain Sombor indices and their exponentials of regular and complete bipartite graphs using some graph operators.
openaire   +1 more source

AGRIFOOD INDUSTRY AS INDUSTRY INTENSIVELY BASED ON KNOWLEDGE - CASE STUDY OF VOJVODINA [PDF]

open access: yes
During three-hundred-year history of the market economy, the main sources of wealth creation have changed from the natural resources (mainly land and relatively unskilled labor with the exception of the master craftsman), tangible material assets ...
Komnenic, Biserka   +2 more
core   +1 more source

Note on Sombor index of connected graphs with given degree sequence

open access: yes, 2022
For a simple connected graph $G=(V,E)$, let $d(u)$ be the degree of the vertex $u$ of $G$. The general Sombor index of $G$ is defined as $$SO_{\alpha}(G)=\sum_{uv\in E} \left[d(u)^2+d(v)^2\right]^\alpha$$ where $SO(G)=SO_{0.5}(G)$ is the recently ...
Liu, Muhuo, Wei, Peichao
core  

Multiplicative Revan-Sombor Indices of Some Benzenoid Systems

open access: yesInternational Journal of Mathematics And Computer Research, 2022
In this paper, we introduce the multiplicative modified Revan Sombor index of a graph. Also we compute the multiplicative Revan Sombor index, multiplicative modified Revan Sombor index of triangular benzenoids, benzenoid rhombus, benzenoid hourglass and benzenoid systems.
openaire   +1 more source

A note on extremal Sombor indices of trees with a given degree sequence

open access: yes, 2022
We note here that the problem of determining extremal values of Sombor index for trees with a given degree sequence fits within the framework of results by Hua Wang from [Cent. Eur. J. Math.
Damnjanović, Ivan   +2 more
core  

On some topological indices of zero divisor graphs of direct product of three finite fields

open access: yesExamples and Counterexamples
In this paper, we determine some degree-based topological indices, such as the Sombor index, the first and second Zagreb indices, the forgotten topological index, the Narumi–Katayama index, the first and second multiplicative Zagreb indices, the atom ...
Subhash Mallinath Gaded   +1 more
doaj   +1 more source

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