Results 91 to 100 of about 8,152,507 (265)

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

AUT 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

Hierarchical Graph Modeling for Multi-Scale Optimization of Power Systems [PDF]

, 2023
David L. Cole, Harsha Gangammanavar, Ví­ctor M. Zavala   +2 more
openalex   +1 more source

Movable-Antenna Position Optimization: A Graph-Based Approach [PDF]

IEEE Wireless Communications Letters
Fluid antennas (FAs) and movable antennas (MAs) have emerged as promising technologies in wireless communications, which offer the flexibility to improve channel conditions by adjusting transmit/receive antenna positions within a spatial region.
Weidong Mei, Xin Wei, B. Ning, Zhi Chen, Rui Zhang   +4 more
semanticscholar   +1 more source

On some characterizations of strong power graphs of finite groups

Special Matrices, 2016
Let G be a finite group of order n. The strong power graph Ps(G) of G is the undirected graph whose vertices are the elements of G such that two distinct vertices a and b are adjacent if am1=bm2 for some positive integers m1, m2 < n.
Bhuniya A. K., Bera Sudip
doaj   +1 more source

Author Response: Protein language model embedded geometric graphs power inter-protein contact prediction

, 2023
Yunda Si, Chengfei Yan
openalex   +1 more source

Power graphs: A survey

Electronic Journal of Graph Theory and Applications, 2013
This article gives a survey of all results on the power graphs of groups and semigroups obtained in the literature. Various conjectures due to other authors, questions and open problems are also included.
Jemal Abawajy, Andrei Kelarev, Morshed Chowdhury   +2 more
openaire   +3 more sources

Mitigation of Cascading Outages Using a Dynamic Interaction Graph-Based Optimal Power Flow Model

IEEE Access, 2019
Online decision support for effective mitigation actions against propagating cascading outages in a power grid still poses a big challenge to grid operators.
Changsheng Chen, Wenyun Ju, Kai Sun, Shiying Ma   +3 more
doaj   +1 more source

Research on power system carbon flow calculation based on graph database and graph computing engine

大数据
Firstly, the basic principles of graph database and graph algorithms are introduced, including the data model of graph database, query language, and common graph algorithms.Then, the method of constructing the graph model of the power system is ...
Guangxin ZHU, Chunlei ZHOU, Junni LI, Jimeng SONG, Xin SHI, Ziqi SHEN   +5 more
doaj  

Conceptual design of a decision knowledge service model integrating a multi-agent supply relationship diagram for electric power emergency equipment

Frontiers in Big Data
IntroductionThe decision regarding the supply of emergency equipments for power emergencies requires timeliness, efficiency, and accuracy. The multi-agent supply relationship graph, based on complex data fusion, enables the comprehensive exploration of ...
Jiandong Si, Chang Liu, Jingxian Ye, Jianfeng Wu, Jianguo Wang, Kairui Hu, Chunhua Ju, Qianwen Cao   +7 more
doaj   +1 more source

On colorings of graph powers

Discrete Mathematics, 2009
In this paper, some results concerning the colorings of graph powers are presented. The notion of helical graphs is introduced. We show that such graphs are hom-universal with respect to high odd-girth graphs whose $(2t+1)$st power is bounded by a Kneser graph. Also, we consider the problem of existence of homomorphism to odd cycles. We prove that such
openaire   +3 more sources