Results 11 to 20 of about 92 (88)

Social Network Analysis of Twitter Users on BTS Topic Using Degree Centrality, Betweenness Centrality, and Closeness Centrality

open access: yesInPrime, 2023
Nowadays, a trademark is starting to be built through content on social media by involving influencers whose roles are increasingly needed in digital marketing. Hence, finding them on social media networks is an important thing. In brand recognition, BTS
Siti Adniati   +2 more
doaj   +2 more sources

The multiplicative Zagreb indices of graph operations [PDF]

open access: yes, 2013
Recently, Todeschini et al. (Novel Molecular Structure Descriptors - Theory and Applications I, pp. 73-100, 2010), Todeschini and Consonni (MATCH Commun. Math. Comput. Chem.
Das, Kinkar C., Çevik, Ahmet Sinan
core   +2 more sources

A shorter proof of the distance energy of complete multipartite graphs

open access: yesSpecial Matrices, 2017
Caporossi, Chasser and Furtula in [Les Cahiers du GERAD (2009) G-2009-64] conjectured that the distance energy of a complete multipartite graph of order n with r ≥ 2 parts, each of size at least 2, is equal to 4(n − r).
So Wasin
doaj   +1 more source

Existence of Regular Nut Graphs for Degree at Most 11

open access: yesDiscussiones Mathematicae Graph Theory, 2020
A nut graph is a singular graph with one-dimensional kernel and corresponding eigenvector with no zero elements. The problem of determining the orders n for which d-regular nut graphs exist was recently posed by Gauci, Pisanski and Sciriha.
Fowler Patrick W.   +4 more
doaj   +1 more source

On Topological Indices of mth Chain Hex-Derived Network of Third Type

open access: yesFrontiers in Physics, 2020
In theoretical chemistry, the numerical parameters that are used to characterize the molecular topology of graphs are called topological indices. Several physical and chemical properties like boiling point, entropy, heat formation, and vaporization ...
Yuhong Huo   +5 more
doaj   +1 more source

Computing the Mixed Metric Dimension of a Generalized Petersen Graph P(n, 2)

open access: yesFrontiers in Physics, 2020
Let Γ = (V, E) be a connected graph. A vertex i ∈ V recognizes two elements (vertices or edges) j, k ∈ E ∩ V, if dΓ(i, j) ≠ dΓ(i, k). A set S of vertices in a connected graph Γ is a mixed metric generator for Γ if every two distinct elements (vertices or
Hassan Raza, Ying Ji
doaj   +1 more source

Intelligent Systems for Structural Damage Assessment

open access: yesJournal of Intelligent Systems, 2018
This research provides a comparative study of intelligent systems in structural damage assessment after the occurrence of an earthquake. Seismic response data of a reinforced concrete structure subjected to 100 different levels of seismic excitation are ...
Vrochidou Eleni   +3 more
doaj   +1 more source

Detour index of a class of unicyclic graphs

open access: yes, 2010
The detour index of a connected graph is defined as the sum of detour distances between all unordered pairs of vertices. We determine the n-vertex unicyclic graphs whose vertices on its unique cycle all have degree at least three with the first, the ...
Qi Xuli, Bo Zhou
core   +1 more source

Molecular Properties of Symmetrical Networks Using Topological Polynomials

open access: yesOpen Chemistry, 2019
A numeric quantity that comprehend characteristics of molecular graph Γ of chemical compound is known as topological index. This number is, in fact, invariant with respect to symmetry properties of molecular graph Γ.
Wang Xing-Long   +5 more
doaj   +1 more source

The agreement distance of rooted phylogenetic networks [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2019
The minimal number of rooted subtree prune and regraft (rSPR) operations needed to transform one phylogenetic tree into another one induces a metric on phylogenetic trees - the rSPR-distance.
Jonathan Klawitter
doaj   +1 more source

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