Results 1 to 10 of about 1,445 (260)

Rainbow edge-coloring and rainbow domination

open access: yesDiscrete Mathematics, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Douglas West
exaly   +2 more sources

Rainbow connections of bioriented graphs [PDF]

open access: yesHeliyon
For a directed graph D, it's deemed rainbow connected if each arc is assigned a different color, so that all paths from the vertex u to the vertex v are rainbow connected.
Linlin Wang, Sujuan Liu, Han Jiang
doaj   +2 more sources

On the Fine-Grained Complexity of Rainbow Coloring [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2018
The Rainbow k-Coloring problem asks whether the edges of a given graph can be colored in $k$ colors so that every pair of vertices is connected by a rainbow path, i.e., a path with all edges of different colors. Our main result states that for any $k\ge 2$, there is no algorithm for Rainbow k-Coloring running in time $2^{o(n^{3/2})}$, unless ETH fails.
Juho Lauri, Łukasz Kowalik
exaly   +8 more sources

On rainbow total-coloring of a graph

open access: yesDiscrete Applied Mathematics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yuefang Sun
exaly   +2 more sources

Facial Rainbow Coloring of Plane Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2019
A vertex coloring of a plane graph G is a facial rainbow coloring if any two vertices of G connected by a facial path have distinct colors. The facial rainbow number of a plane graph G, denoted by rb(G), is the minimum number of colors that are necessary
Jendroľ Stanislav, Kekeňáková Lucia
doaj   +2 more sources

Rainbow Connection Numbers of WK-Recursive Networks and WK-Recursive Pyramids

open access: yesMathematics
An edge coloring of a graph G results in G being rainbow connected when every pair of vertices is linked by a rainbow path. Such a path is defined as one where each edge possesses a distinct color.
Fuhsing Wang
exaly   +3 more sources

ON RAINBOW ANTIMAGIC COLORING OF SNAIL GRAPH(S_n ), COCONUT ROOT GRAPH (Cr_(n,m) ), FAN STALK GRAPH (Kt_n ) AND THE LOTUS GRAPH(Lo_n )

open access: yesBarekeng, 2023
Rainbow antimagic coloring is a combination of antimagic labeling and rainbow coloring. Antimagic labeling is labeling of each vertex of the graph  with a different label, so that each the sum of the vertices in the graph has a different weight. Rainbow
R Adawiyah   +4 more
doaj   +1 more source

On Rainbow Antimagic Coloring of Joint Product of Graphs

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2023
Let  be a connected graph with vertex set  and edge set . A bijection  from  to the set  is a labeling of graph . The bijection  is called rainbow antimagic vertex labeling if for any two edge  and  in path , where  and .
Brian Juned Septory   +3 more
doaj   +1 more source

Rainbow degree-jump coloring of graphs

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
In this paper, we introduce a new notion called the rainbow degree-jump coloring of a graph. For a vertex $v\in V(G)$, let the degree-jump closed neighbourhood of a vertex $v$ be defined as $N_{deg}[v] = \{u:d(v,u)\leq d(v)\}.$ A proper coloring of a ...
E.G. Mphako-Banda, J. Kok, S. Naduvath
doaj   +1 more source

On the Complexity of Rainbow Coloring Problems [PDF]

open access: yesDiscrete Applied Mathematics, 2016
An edge-colored graph $G$ is said to be rainbow connected if between each pair of vertices there exists a path which uses each color at most once. The rainbow connection number, denoted by $rc(G)$, is the minimum number of colors needed to make $G$ rainbow connected.
Eduard Eiben, Robert Ganian, Juho Lauri
openaire   +3 more sources

Home - About - Disclaimer - Privacy