Chained structure of directed graphs with applications to social and transportation networks

Abstract The need to determine the structure of a graph arises in many applications. This paper studies directed graphs and defines the notions of $$\ell$$ ℓ -chained and $$\{\ell ,k\}$$ { ℓ , k } -chained directed graphs. These notions reveal structural properties of directed graphs that shed light...

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Main Authors: Anna Concas, Caterina Fenu, Lothar Reichel, Giuseppe Rodriguez, Yunzi Zhang
Format: Article
Language:English
Published: SpringerOpen 2022-09-01
Series:Applied Network Science
Subjects:
Online Access:https://doi.org/10.1007/s41109-022-00502-x
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author Anna Concas
Caterina Fenu
Lothar Reichel
Giuseppe Rodriguez
Yunzi Zhang
author_facet Anna Concas
Caterina Fenu
Lothar Reichel
Giuseppe Rodriguez
Yunzi Zhang
author_sort Anna Concas
collection DOAJ
description Abstract The need to determine the structure of a graph arises in many applications. This paper studies directed graphs and defines the notions of $$\ell$$ ℓ -chained and $$\{\ell ,k\}$$ { ℓ , k } -chained directed graphs. These notions reveal structural properties of directed graphs that shed light on how the nodes of the graph are connected. Applications include city planning, information transmission, and disease propagation. We also discuss the notion of in-center and out-center vertices of a directed graph, which are vertices at the center of the graph. Computed examples provide illustrations, among which is the investigation of a bus network for a city.
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spelling doaj.art-5d56ab72e7d04b52847b25b7c1e0a9612022-12-22T03:46:40ZengSpringerOpenApplied Network Science2364-82282022-09-017112510.1007/s41109-022-00502-xChained structure of directed graphs with applications to social and transportation networksAnna Concas0Caterina Fenu1Lothar Reichel2Giuseppe Rodriguez3Yunzi Zhang4Dipartimento di Matematica e Informatica, Università di CagliariDipartimento di Matematica e Informatica, Università di CagliariDepartment of Mathematical Sciences, Kent State UniversityDipartimento di Matematica e Informatica, Università di CagliariDepartment of Mathematical Sciences, Kent State UniversityAbstract The need to determine the structure of a graph arises in many applications. This paper studies directed graphs and defines the notions of $$\ell$$ ℓ -chained and $$\{\ell ,k\}$$ { ℓ , k } -chained directed graphs. These notions reveal structural properties of directed graphs that shed light on how the nodes of the graph are connected. Applications include city planning, information transmission, and disease propagation. We also discuss the notion of in-center and out-center vertices of a directed graph, which are vertices at the center of the graph. Computed examples provide illustrations, among which is the investigation of a bus network for a city.https://doi.org/10.1007/s41109-022-00502-xNetwork analysisDirected chained graphCentral vertex
spellingShingle Anna Concas
Caterina Fenu
Lothar Reichel
Giuseppe Rodriguez
Yunzi Zhang
Chained structure of directed graphs with applications to social and transportation networks
Applied Network Science
Network analysis
Directed chained graph
Central vertex
title Chained structure of directed graphs with applications to social and transportation networks
title_full Chained structure of directed graphs with applications to social and transportation networks
title_fullStr Chained structure of directed graphs with applications to social and transportation networks
title_full_unstemmed Chained structure of directed graphs with applications to social and transportation networks
title_short Chained structure of directed graphs with applications to social and transportation networks
title_sort chained structure of directed graphs with applications to social and transportation networks
topic Network analysis
Directed chained graph
Central vertex
url https://doi.org/10.1007/s41109-022-00502-x
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AT lotharreichel chainedstructureofdirectedgraphswithapplicationstosocialandtransportationnetworks
AT giusepperodriguez chainedstructureofdirectedgraphswithapplicationstosocialandtransportationnetworks
AT yunzizhang chainedstructureofdirectedgraphswithapplicationstosocialandtransportationnetworks