Results 1 to 10 of about 76,189 (158)

Gallai-Edmonds decomposition of unicyclic graphs from null space [PDF]

open access: diamondThe American Journal of Combinatorics, 2022
In this paper, we compute the Gallai-Edmonds decomposition of a unicyclic graph $G$ using linear algebraic tools. More precisely, the Gallai-Edmonds decomposition of $G$ is obtained from the null space associated with adjacency matrices of its subtrees.
Luiz Emilio Allem   +3 more
doaj   +4 more sources

Edge irregular reflexive labeling on sun graph and corona of cycle and null graph with two vertices

open access: diamondIndonesian Journal of Combinatorics, 2021
Let G(V,E) be a simple and connected graph which set of vertices is V and set of edges is E. Irregular reflexive k-labeling f on G(V,E) is assignment that carries the numbers of integer to elements of graph, such that the positive integer {1,2, 3,...,ke}
Irfan Setiawan, Diari Indriati
doaj   +3 more sources

Null Spaces Dimension of the Eigenvalue -1 in a Graph

open access: goldScience Journal of University of Zakho, 2019
In geographic, the eigenvalues and eigenvectors of transportation network provides many informations about its connectedness. It is proven that the more highly connected in a transportation network G has largest eigenvalue and hence more multiple ...
Gohdar H. Mohiaddin, Khidir R. Sharaf
doaj   +3 more sources

On the Storage–Communication Trade-Off in Graph-Based X-Secure T-Private Linear Computation [PDF]

open access: yesEntropy
The problem of graph-based X-secure T-private linear computation (GXSTPLC) is to allow a user to retrieve a linear combination of K messages from a set of N distributed servers that store the messages in a graph-based fashion, i.e., each message is ...
Yueyang Liu, Haobo Jia, Zhuqing Jia
doaj   +2 more sources

THE REFLEXIVE EDGE STRENGTH OF THE PENTAGONAL SNAKE GRAPH AND CORONA OF THE OPEN TRIANGULAR LADDER AND NULL GRAPH

open access: diamondBarekeng
Assume that  be an undirected simple graph with vertex set  and edge set . The  edge irregular reflexive -labeling of graph  is a labeling selects positive integers from 1 to  as edge labels and non negative even numbers from 0 to  as vertex ...
Diari Indriati   +2 more
doaj   +2 more sources

EDGE IRREGULAR REFLEXIVE LABELING OF DUMBBELL GRAPH, CORONA OF OPEN LADDER, AND NULL GRAPH

open access: diamondBarekeng
Graph  is a simple, connected, undirected graph with vertex set  and edge set . A graph  is called to have an edge irregular reflexive -labeling if its vertices can be labeled with even numbers from  until  and its edges can be labeled with ...
Thetania Miftakul Zalsa   +2 more
doaj   +2 more sources

Joint Formation Control with Obstacle Avoidance of Towfish and Multiple Autonomous Underwater Vehicles Based on Graph Theory and the Null-Space-Based Method [PDF]

open access: goldSensors, 2019
In this study, a new joint formation combined with a two-part underwater towed vehicle (towfish) with multiple autonomous underwater vehicles (AUVs) was investigated.
Shi-kun Pang, Ying-hui Li, Hong Yi
doaj   +2 more sources

Exploring weighting schemes for the discovery of informative generalized between pathway models to uncover pathways in genetic interaction networks [PDF]

open access: yesScientific Reports
In S. cerevisiae, a large and rich collection of epistasis data has been collected. When this data comes from double knockouts, it has a natural representation as a signed and weighted graph, where the weight on an edge is computed based on deviation ...
Kevin M. Yu, Lenore J. Cowen
doaj   +2 more sources

Presenting a Scale-Free Complex Network with a Persian Language Layered Composition Pattern [PDF]

open access: yesعلوم و فنون مدیریت اطلاعات, 2023
Purpose: This article proposes a method for investigating the patterns of composition and topological structure of the Persian language. The enhanced method analyzes Persian text by representing it as a simultaneous network graph within the framework of ...
Ali Sarabadani   +2 more
doaj   +1 more source

Optimized null model for protein structure networks. [PDF]

open access: yesPLoS ONE, 2009
Much attention has recently been given to the statistical significance of topological features observed in biological networks. Here, we consider residue interaction graphs (RIGs) as network representations of protein structures with residues as nodes ...
Tijana Milenković   +3 more
doaj   +1 more source

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