Results 11 to 20 of about 208 (119)

The Rainbow Vertex-Connection Number of Star Fan Graphs

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2018
A vertex-colored graph  is said to be rainbow vertex-connected, if for every two vertices  and  in , there exists a  path with all internal vertices have distinct colors.
Ariestha Widyastuty Bustan   +1 more
doaj   +1 more source

Computing Minimum Rainbow and Strong Rainbow Colorings of Block Graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2018
A path in an edge-colored graph $G$ is rainbow if no two edges of it are colored the same. The graph $G$ is rainbow-connected if there is a rainbow path between every pair of vertices.
Melissa Keranen, Juho Lauri
doaj   +1 more source

Rainbow connection number of comb product of graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2022
An edge-colored graph G is called a rainbow connected if any two vertices are connected by a path whose edges have distinct colors. Such a path is called a rainbow path.
Dinny Fitriani   +2 more
doaj   +1 more source

On the inverse graph of a finite group and its rainbow connection number

open access: yesElectronic Journal of Graph Theory and Applications, 2023
A rainbow path in an edge-colored graph G is a path that every two edges have different colors. The minimum number of colors needed to color the edges of G such that every two distinct vertices are connected by a rainbow path is called the rainbow ...
Rian Febrian Umbara   +2 more
doaj   +1 more source

The rainbow connection number of the enhanced power graph of a finite group

open access: yesElectronic Journal of Graph Theory and Applications, 2023
Let G be a finite group. The enhanced power graph ΓGe of G is the graph with vertex set G and two distinct vertices are adjacent if they generate a cyclic subgroup of G. In this article, we calculate the rainbow connection number of ΓGe.
Luis A. Dupont   +2 more
doaj   +1 more source

(1, 2)-rainbow connection number at most 3 in connected dense graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2023
Let G be an edge-coloured connected graph G. A path P in the graph G is called l-rainbow path if each subpath of length at most l + 1 is rainbow. The graph G is called (k, l)-rainbow connected if any two vertices in G are connected by at least k pairwise
Trung Duy Doan, Le Thi Duyen
doaj   +1 more source

RAINBOW VERTEX CONNECTION NUMBER OF BULL GRAPH, NET GRAPH, TRIANGULAR LADDER GRAPH, AND COMPOSITION GRAPH (P_n [P_1 ])

open access: yesBarekeng
The rainbow connection was first introduced by Chartrand in 2006 and then in 2009 Krivelevich and Yuster first time introduced the rainbow vertex connection. Let graph be a connected graph.
Muhammad Ilham Nurfaizi Annadhifi   +3 more
doaj   +1 more source

Bilangan Rainbow Connection dari Hasil Operasi Penjumlahan dan Perkalian Kartesius Dua Graf

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2012
Graf dengan pewarnaan sisi disebut pelangi sisi terhubung, jika setiap titik pada graf dihubungkan oleh lintasan yang memiliki sisi-sisi dengan warna yang berbeda. Rainbow connection pada graf yang terhubung, disimbolkan oleh yaitu bilangan terkecil dari
Fuad Adi Saputra
doaj   +1 more source

Rainbow Vertex-Connection and Forbidden Subgraphs

open access: yesDiscussiones Mathematicae Graph Theory, 2018
A path in a vertex-colored graph is called vertex-rainbow if its internal vertices have pairwise distinct colors. A vertex-colored graph G is rainbow vertex-connected if for any two distinct vertices of G, there is a vertex-rainbow path connecting them ...
Li Wenjing, Li Xueliang, Zhang Jingshu
doaj   +1 more source

An updated survey on rainbow connections of graphs - a dynamic survey

open access: yesTheory and Applications of Graphs, 2017
The concept of rainbow connection was introduced by Chartrand, Johns, McKeon and Zhang in 2008. Nowadays it has become a new and active subject in graph theory. There is a book on this topic by Li and Sun in 2012, and a survey paper by Li, Shi and Sun in
Xueliang Li, Yuefang Sun
doaj   +1 more source

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