Results 51 to 60 of about 3,157 (213)

The inner power of a graph

open access: yesArs Mathematica Contemporanea, 2010
Summary: We define a new graph operation called the \(k\)th inner power. The construction-which is somewhat analogous to the \(k\)th power with respect to the direct product-seems to lend itself nicely to certain questions concerning cancellation over the direct product.
Richard H. Hammack, Neal Livesay
openaire   +3 more sources

On the tree-number of the power graph associated with some finite groups [PDF]

open access: yesAUT Journal of Mathematics and Computing
Given a group G, we define the power graph P(G) as follows: the vertices are the elements of G and two vertices x and y are joined by an edge if ⟨x⟩ ⊆ ⟨y⟩ or ⟨y⟩ ⊆ ⟨x⟩.
Sakineh Rahbariyan
doaj   +1 more source

Research on the construction and implementation of power grid fault handling knowledge graphs

open access: yesEnergy Reports, 2023
Power grid fault disposal has important guiding significance for the efficient and orderly emergency work of power grid accidents. The knowledge graph technology is used to extract, express and manage the fault disposal information.
Na Xiao   +5 more
doaj   +1 more source

Power domination in graphs

open access: yesDiscrete Mathematics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Min Zhao, Liying Kang, Gerard J. Chang
openaire   +2 more sources

On Power Graph Representation of Γ_1-nonderanged Permutation Group

open access: yesUMYU Scientifica Journal
A -nonderanged permutation group  is a permutation group such that  where . In this paper, an undirected power graph representation of -nonderanged permutation group denoted by  has been studied.
Anas Yusuf, Almustapha Umar
doaj   +1 more source

Power Domination in the Generalized Petersen Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2020
The problem of monitoring an electric power system by placing as few measurement devices in the system can be formulated as a power dominating set problem in graph theory.
Zhao Min, Shan Erfang, Kang Liying
doaj   +1 more source

Power Domination Number On Shackle Operation with Points as Lingkage

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika), 2020
The Power dominating set is a minimum point of determination in a graph that can dominate the connected dots around it, with a minimum domination point.
Ilham Saifudin
doaj   +1 more source

Average Degree in Graph Powers [PDF]

open access: yesJournal of Graph Theory, 2012
AbstractThe kth power of a simple graph G, denoted by , is the graph with vertex set where two vertices are adjacent if they are within distance k in G. We are interested in finding lower bounds on the average degree of . Here we prove that if G is connected with minimum degree and , then G4 has average degree at least .
Matt DeVos   +2 more
openaire   +3 more sources

A survey on the development status and application prospects of knowledge graph in smart grids

open access: yesIET Generation, Transmission & Distribution, 2021
With the advent of the electric power big data era, semantic interoperability and interconnection of power data have received extensive attention. Knowledge graph technology is a new method describing the complex relationships between concepts and ...
Jian Wang, Xi Wang, Chaoqun Ma, Lei Kou
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

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