On The Partition Dimension of Disconnected Graphs

For a graph G=(V,E), a partition Ω=\{O_1,O_2,…,O_k \} of the vertex set V is called a resolving partition if every pair of vertices u,v∈V(G) have distinct representations under Ω. The partition dimension of G is the minimum integer k such that G has a resolving k-partition. Many results in determini...

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Main Authors: Debi Oktia Haryeni, Edy Tri Baskoro, Suhadi Wido Saputro
Format: Article
Language:English
Published: ITB Journal Publisher 2017-06-01
Series:Journal of Mathematical and Fundamental Sciences
Subjects:
Online Access:http://journals.itb.ac.id/index.php/jmfs/article/view/2459
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author Debi Oktia Haryeni
Edy Tri Baskoro
Suhadi Wido Saputro
author_facet Debi Oktia Haryeni
Edy Tri Baskoro
Suhadi Wido Saputro
author_sort Debi Oktia Haryeni
collection DOAJ
description For a graph G=(V,E), a partition Ω=\{O_1,O_2,…,O_k \} of the vertex set V is called a resolving partition if every pair of vertices u,v∈V(G) have distinct representations under Ω. The partition dimension of G is the minimum integer k such that G has a resolving k-partition. Many results in determining the partition dimension of graphs have been obtained. However, the known results are limited to connected graphs. In this study, the notion of the partition dimension of a graph is extended so that it can be applied to disconnected graphs as well. Some lower and upper bounds for the partition dimension of a disconnected graph are determined (if they are finite). In this paper, also the partition dimensions for some classes of disconnected graphs are given.
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spelling doaj.art-e76caa8c5aba4375b15075e0a3b1aa272022-12-22T03:22:25ZengITB Journal PublisherJournal of Mathematical and Fundamental Sciences2337-57602338-55102017-06-01491183210.5614/j.math.fund.sci.2017.49.1.2On The Partition Dimension of Disconnected GraphsDebi Oktia Haryeni0Edy Tri Baskoro 1Suhadi Wido Saputro2Combinatorial Mathematics Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia.Combinatorial Mathematics Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia.Combinatorial Mathematics Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia.For a graph G=(V,E), a partition Ω=\{O_1,O_2,…,O_k \} of the vertex set V is called a resolving partition if every pair of vertices u,v∈V(G) have distinct representations under Ω. The partition dimension of G is the minimum integer k such that G has a resolving k-partition. Many results in determining the partition dimension of graphs have been obtained. However, the known results are limited to connected graphs. In this study, the notion of the partition dimension of a graph is extended so that it can be applied to disconnected graphs as well. Some lower and upper bounds for the partition dimension of a disconnected graph are determined (if they are finite). In this paper, also the partition dimensions for some classes of disconnected graphs are given.http://journals.itb.ac.id/index.php/jmfs/article/view/2459disconnected graphdistanceforestpartition dimensionresolving partition
spellingShingle Debi Oktia Haryeni
Edy Tri Baskoro
Suhadi Wido Saputro
On The Partition Dimension of Disconnected Graphs
Journal of Mathematical and Fundamental Sciences
disconnected graph
distance
forest
partition dimension
resolving partition
title On The Partition Dimension of Disconnected Graphs
title_full On The Partition Dimension of Disconnected Graphs
title_fullStr On The Partition Dimension of Disconnected Graphs
title_full_unstemmed On The Partition Dimension of Disconnected Graphs
title_short On The Partition Dimension of Disconnected Graphs
title_sort on the partition dimension of disconnected graphs
topic disconnected graph
distance
forest
partition dimension
resolving partition
url http://journals.itb.ac.id/index.php/jmfs/article/view/2459
work_keys_str_mv AT debioktiaharyeni onthepartitiondimensionofdisconnectedgraphs
AT edytribaskoro onthepartitiondimensionofdisconnectedgraphs
AT suhadiwidosaputro onthepartitiondimensionofdisconnectedgraphs