Results 51 to 60 of about 7,406 (155)

Complexity of rainbow vertex connectivity problems for restricted graph classes

open access: yesDiscrete Applied Mathematics, 2017
A path in a vertex-colored graph $G$ is \emph{vertex rainbow} if all of its internal vertices have a distinct color. The graph $G$ is said to be \emph{rainbow vertex connected} if there is a vertex rainbow path between every pair of its vertices. Similarly, the graph $G$ is \emph{strongly rainbow vertex connected} if there is a shortest path which is ...
openaire   +2 more sources

Vertex rainbow colorings of graphs

open access: yes, 2012
In a properly vertex-colored graph G, a path P is a rainbow path if no two vertices of P have the same color, except possibly the two end-vertices of P. If every two vertices of G are connected by a rainbow path, then G is vertex rainbow-connected.
Fujie-Okamoto, Futaba   +3 more
core   +1 more source

Rainbow Connection on Amal(Fn,xz,m) Graphs and Amal(On,xz,m) Graphs

open access: yesContemporary Mathematics and Applications (ConMathA)
Coloring graph is giving a color to a set of vertices and a set of edges on a graph. The condition for coloring a graph is that each color is different for each neighboring member graph.
Muhammad Usaid Hudloir   +4 more
doaj   +1 more source

On the RACN of the comb product of the cycle C_3 with path P_n and broom Br_(n,m)

open access: yesJournal Focus Action of Research Mathematic
The combination of rainbow coloring and anti-magic labeling is known as Rainbow Antimagic Coloring (RAC). The Rainbow Antimagic Connection Number (RACN) of a graph G is the smallest number of colors induced by all edge weights under an antimagic labeling,
Brian Juned Septory   +2 more
doaj   +1 more source

Rainbow Connection Number dan Strong Rainbow Connection Number pada Graf komplemen dari Graf konjugasi grup dihedral [PDF]

open access: yes, 2017
INDONESIA: Graf G dengan pewarnaan sisi disebut rainbow connected jika setiap titik pada graf G dihubungkan oleh lintasan yang memiliki sisi-sisi dengan warna berbeda.
Indahsari, Alvi Nur Laila
core  

Rainbow connection number of corona product of graphs

open access: yesElectronic Journal of Graph Theory and Applications
In an edge-colored graph (where adjacent edges may have the same color), a rainbow path is a path whose edge colors are all distinct. The coloring is called a rainbow coloring if any two vertices can be connected by a rainbow path. The rainbow connection
Fendy Septyanto
doaj   +1 more source

Algorithms for the rainbow vertex coloring problem on graph classes

open access: yes, 2021
Given a vertex-colored graph, we say a path is a rainbow vertex path if all its internal vertices have distinct colors. The graph is rainbow vertex-connected if there is a rainbow vertex path between every pair of its vertices.
Lima, Paloma T.   +5 more
core   +1 more source

On rainbow vertex antimagic coloring and its application to the encryption keystream construction [PDF]

open access: yes
Let G = (V,E) be a graph that is a simple, connected and un-directed graph. We now introduce a new notion of rainbow vertex antimagic coloring. This is a proper development of antimagic labeling with rainbow vertex coloring.
Nagaraja, Vaishnavi   +6 more
core   +1 more source

Rainbow K-Connection In Dense Graphs

open access: yes, 2011
An edge-colouring of a graph G is rainbow k-connected if, for any two vertices of G , there are k internally vertex-disjoint paths joining them, each of which is rainbow (i.e., all edges of each path have distinct colours).
Liu, Henry   +5 more
core   +1 more source

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