Results 31 to 40 of about 9,657,260 (124)

Rainbow Connection Number and Connectivity [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2012
The rainbow connection number, $rc(G)$, of a connected graph $G$ is the minimum number of colors needed to color its edges, so that every pair of vertices is connected by at least one path in which no two edges are colored the same. Our main result is that $rc(G)\leq \lceil\frac{n}{2}\rceil$ for any 2-connected graph with at least three vertices.
Xueliang Li 0001   +4 more
openaire   +3 more sources

Rainbow Connection Number and Radius [PDF]

open access: yesGraphs and Combinatorics, 2012
The rainbow connection number, rc(G), of a connected graph G is the minimum number of colours needed to colour its edges, so that every pair of its vertices is connected by at least one path in which no two edges are coloured the same. In this note we show that for every bridgeless graph G with radius r, rc(G) <= r(r + 2).
Manu Basavaraju   +3 more
openaire   +3 more sources

Rainbow Connection Number and the Number of Blocks [PDF]

open access: yesGraphs and Combinatorics, 2013
7 ...
Xueliang Li 0001, Sujuan Liu
openaire   +3 more sources

RAINBOW VERTEX-CONNECTION NUMBER ON COMB PRODUCT OPERATION OF CYCLE GRAPH (C_4) AND COMPLETE BIPARTITE GRAPH (K_(3,N))

open access: yesBarekeng, 2023
Rainbow vertex-connection number is the minimum colors assignment to the vertices of the graph, such that each vertex is connected by a path whose edges have distinct colors and is denoted by .
Nisky Imansyah Yahya   +3 more
doaj   +1 more source

Rainbow Connection Number of Double Quadrilateral Snake Graph [PDF]

open access: yes, 2023
Let graph G = be a non trivial connected graph. A graph G with edge coloring is called a rainbow connection, if for every pair of vertices  on a path has a different color.
Massalesse, Jusmawati   +2 more
core   +1 more source

Rainbow Connection Number, Bridges and Radius [PDF]

open access: yesGraphs and Combinatorics, 2012
8 ...
Jiuying Dong, Xueliang Li 0001
openaire   +2 more sources

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 and Independence Number of a Graph [PDF]

open access: yesGraphs and Combinatorics, 2016
Let $G$ be an edge-colored connected graph. A path of $G$ is called rainbow if its every edge is colored by a distinct color. $G$ is called rainbow connected if there exists a rainbow path between every two vertices of $G$. The minimum number of colors that are needed to make $G$ rainbow connected is called the rainbow connection number of $G$, denoted
Jiuying Dong, Xueliang Li 0001
openaire   +4 more sources

On Rainbow Vertex Antimagic Coloring of Graphs: A New Notion

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2021
All graph in this paper are simple, finite, and connected. Let  be a labeling of a graph . The function  is called antimagic rainbow edge labeling if for any two vertices  and , all internal vertices in path  have different weight, where the weight of ...
Marsidi Marsidi   +3 more
doaj   +1 more source

BATAS ATAS RAINBOW CONNECTION NUMBER PADA GRAF BUCKMINSTERFULLERENE

open access: yesJurnal Matematika UNAND, 2022
Misalkan G adalah suatu graf terhubung tak trivial. Suatu pewarnaan c : E(G) → {1, 2, ..., k}, k ∈ N pada graf G adalah suatu pewarnaan sisi di G sedemikian sehingga setiap sisi bertetangga boleh berwarna sama.
Fitri - Anggalia   +2 more
doaj   +1 more source

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