Results 11 to 20 of about 3,063,668 (282)

Computing Certain Topological Indices of the Line Graphs of Subdivision Graphs of Some Rooted Product Graphs

open access: yesMathematics, 2019
In this work, we study the degree-based topological invariants, and the general sum-connectivity, A B C 4 , G A 5 , general Zagreb, G A , generalized Randić, and A B C indices of the line graphs of some rooted product ...
Adnan Aslam   +4 more
doaj   +2 more sources

Roman domination in direct product graphs and rooted product graphs1 [PDF]

open access: yes, 2021
Let G be a graph with vertex set V(G). A function f : V(G) -> {0, 1, 2) is a Roman dominating function on G if every vertex v is an element of V(G) for which f(v) = 0 is adjacent to at least one vertex u is an element of V(G) such that f(u) = 2.
Martinez, Abel Cabrera; Peterin, Iztok; Yero, Ismael G.;
core   +2 more sources

Bounds for the general sum-connectivity index of composite graphs

open access: yesJournal of Inequalities and Applications, 2017
The general sum-connectivity index is a molecular descriptor defined as χ α ( X ) = ∑ x y ∈ E ( X ) ( d X ( x ) + d X ( y ) ) α $\chi_{\alpha}(X)=\sum_{xy\in E(X)}(d_{X}(x)+d_{X}(y))^{\alpha}$ , where d X ( x ) $d_{X}(x)$ denotes the degree of a vertex x
Shehnaz Akhter   +2 more
doaj   +1 more source

Delta-result in the production structure of a sustainable enterprise [PDF]

open access: yesE3S Web of Conferences, 2021
The sustainability of an industrial region is rooted in the sustainability of the production process itself. Industrial production is strictly focused on the product, which plays a crucial role in production structure.
Nevelev Anatoly, Kamaletdinova Alfiya
doaj   +1 more source

Rooted wreath products

open access: yesJournal of Algebra, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Glass, A.M.W., Winkler, Reinhard
openaire   +2 more sources

Hairy roots: An untapped potential for production of plant products

open access: yesFrontiers in Plant Science, 2022
While plants are an abundant source of valuable natural products, it is often challenging to produce those products for commercial application. Often organic synthesis is too expensive for a viable commercial product and the biosynthetic pathways are often so complex that transferring them to a microorganism is not trivial or ...
Kevin J. Morey, Christie A. M. Peebles
openaire   +3 more sources

Italian Domination in Rooted Product Graphs [PDF]

open access: yesBulletin of the Malaysian Mathematical Sciences Society, 2020
In this article, we obtain closed formulae for the Italian domination number of rooted product graphs. As a particular case of the study, we derive the corresponding formulas for corona graphs, and we provide an alternative proof that the problem of computing the Italian domination number of a graph is NP-hard.
R. Hernández-Ortiz   +2 more
openaire   +3 more sources

On the Additively Weighted Harary Index of Some Composite Graphs

open access: yesMathematics, 2017
The Harary index is defined as the sum of reciprocals of distances between all pairs of vertices of a connected graph. The additively weighted Harary index H A ( G ) is a modification of the Harary index in which the contributions of vertex ...
Behrooz Khosravi, Elnaz Ramezani
doaj   +1 more source

Edge Version of Harmonic Index and Harmonic Polynomial of Rooted Product Graphs [PDF]

open access: yes, 2018
In this paper we computed explicit formulas for the edge version of harmonic index and harmonic polynomial of some classes of rooted product of graphs and i-th vertex rooted product of graphs.
null Rabia Nazir   +7 more
core   +1 more source

Equitable Coloring On Rooted Product Of Graphs

open access: yes, 2021
A finite and simple graph  is said to be equitably  colorable if its vertices can be partitioned into  classes  such that each  is an independent set and  holds for every .
et. al., Loura Jency ,
core   +1 more source

Home - About - Disclaimer - Privacy