Results 1 to 10 of about 841,611 (282)

On cospectrality of gain graphs [PDF]

open access: goldSpecial Matrices, 2022
We define GG-cospectrality of two GG-gain graphs (Γ,ψ)\left(\Gamma ,\psi ) and (Γ′,ψ′)\left(\Gamma ^{\prime} ,\psi ^{\prime} ), proving that it is a switching isomorphism invariant.
Cavaleri Matteo, Donno Alfredo
doaj   +4 more sources

Line and Subdivision Graphs Determined by T 4 -Gain Graphs [PDF]

open access: yesMathematics, 2019
Let T 4 = { ± 1 , ± i } be the subgroup of fourth roots of unity inside T , the multiplicative group of complex units. For a T 4 -gain graph Φ = ( Γ , T 4 , φ ) , we introduce gain functions on ...
Abdullah Alazemi   +4 more
doaj   +5 more sources

On two Laplacian matrices for skew gain graphs [PDF]

open access: diamondElectronic Journal of Graph Theory and Applications, 2021
Gain graphs are graphs where the edges are given some orientation and labeled with the elements (called gains) from a group so that gains are inverted when we reverse the direction of the edges.
Roshni T. Roy   +2 more
doaj   +5 more sources

Eigenvalues of complex unit gain graphs and gain regularity [PDF]

open access: goldSpecial Matrices
A complex unit gain graph (or T{\mathbb{T}}-gain graph) Γ=(G,γ)\Gamma =\left(G,\gamma ) is a gain graph with gains in T{\mathbb{T}}, the multiplicative group of complex units.
Brunetti Maurizio
doaj   +4 more sources

Multi-Duplicated Characterization of Graph Structures Using Information Gain Ratio for Graph Neural Networks [PDF]

open access: goldIEEE Access, 2023
Various graph neural networks (GNNs) have been proposed to solve node classification tasks in machine learning for graph data. GNNs use the structural information of graph data by aggregating the feature vectors of neighboring nodes.
Yuga Oishi, Ken Kaneiwa
doaj   +2 more sources

Cycle and Circle Tests of Balance in Gain Graphs: Forbidden Minors and Their Groups

open access: green, 2002
We examine two criteria for balance of a gain graph, one based on binary cycles and one on circles. The graphs for which each criterion is valid depend on the set of allowed gain groups.
Konstantin Rybnikov, Thomas Zasĺavsky
openalex   +5 more sources

An elementary chromatic reduction for gain graphs and special hyperplane arrangements [PDF]

open access: green, 2010
A gain graph is a graph whose edges are labelled invertibly by "gains" from a group. "Switching" is a transformation of gain graphs that generalizes conjugation in a group.
Pascal Berthomé   +4 more
openalex   +13 more sources

Enhancing cybersecurity through autonomous knowledge graph construction by integrating heterogeneous data sources [PDF]

open access: yesPeerJ Computer Science
Cybersecurity plays a critical role in today’s modern human society, and leveraging knowledge graphs can enhance cybersecurity and privacy in the cyberspace.
Hatoon Alharbi   +3 more
doaj   +3 more sources

An interaction graph approach to gain new insights into mechanisms that modulate cerebrovascular tone [PDF]

open access: goldCommunications Biology
Mechanisms to modulate cerebrovascular tone are numerous, interconnected, and spatially dependent, increasing the complexity of experimental study design, interpretation of action-effect pathways, and mechanistic modelling. This difficulty is exacerbated
Sergio Dempsey   +3 more
doaj   +2 more sources

Gain and Pain in Graph Partitioning: Finding Accurate Communities in Complex Networks [PDF]

open access: goldAlgorithms
This paper presents an approach to community detection in complex networks by simultaneously incorporating a connectivity-based metric and Max-Min Modularity.
Arman Ferdowsi, Maryam Dehghan Chenary
doaj   +2 more sources

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