Results 31 to 40 of about 1,445 (260)

Rainbow Matching in Edge-Colored Graphs [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2010
A rainbow subgraph of an edge-colored graph is a subgraph whose edges have distinct colors. The color degree of a vertex $v$ is the number of different colors on edges incident to $v$. Wang and Li conjectured that for $k\geq 4$, every edge-colored graph with minimum color degree at least $k$ contains a rainbow matching of size at least $\left\lceil k/
Timothy D. LeSaulnier   +3 more
openaire   +2 more sources

Rainbow Matchings in Properly-Colored Hypergraphs [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2019
A hypergraph $H$ is properly colored if for every vertex $v\in V(H)$, all the edges incident to $v$ have distinct colors. In this paper, we show that if $H_{1}, \ldots, H_{s}$ are properly-colored $k$-uniform hypergraphs on $n$ vertices, where $n\geq3k^{2}s$, and  $e(H_{i})>{{n}\choose {k}}-{{n-s+1}\choose {k}}$, then there exists a rainbow matching
Hao Huang, Tong Li, Guanghui Wang 0002
openaire   +3 more sources

On finding rainbow and colorful paths

open access: yesTheoretical Computer Science, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lukasz Kowalik, Juho Lauri
openaire   +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

RAINBOW CONNECTION PADA GRAF AMALGAMASI TANGGA SEGITIGA DIPERUMUM HOMOGEN

open access: yesJurnal Matematika UNAND, 2019
Untuk graf G terhubung dan tak trivial, dan k suatu bilangan bulat positif, misalkan c : E(G) → {1, 2, ..., k} suatu pewarnaan sisi di G, dimana sisi yang bertetangga boleh diberi warna yang sama. Suatu lintasan di G dikatakan lintasan rainbow jika tidak
Muhardiansyah Muhardiansyah   +2 more
doaj   +1 more source

Distance-Local Rainbow Connection Number

open access: yesDiscussiones Mathematicae Graph Theory, 2022
Under an edge coloring (not necessarily proper), a rainbow path is a path whose edge colors are all distinct. The d-local rainbow connection number lrcd(G) (respectively, d-local strong rainbow connection number lsrcd(G)) is the smallest number of colors
Septyanto Fendy, Sugeng Kiki A.
doaj   +1 more source

THE LOCATING RAINBOW CONNECTION NUMBERS OF LOLLIPOP AND BARBELL GRAPHS

open access: yesBarekeng
The concept of the locating rainbow connection number of a graph is an innovation in graph coloring theory that combines the concepts of rainbow vertex coloring and partition dimension on graphs.
Ariestha Widyastuty Bustan   +4 more
doaj   +1 more source

Rainbow Disconnection in Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2018
Let G be a nontrivial connected, edge-colored graph. An edge-cut R of G is called a rainbow cut if no two edges in R are colored the same. An edge-coloring of G is a rainbow disconnection coloring if for every two distinct vertices u and v of G, there ...
Chartrand Gary   +4 more
doaj   +1 more source

RAINBOW CONNECTION NUMBER AND TOTAL RAINBOW CONNECTION NUMBER OF AMALGAMATION RESULTS DIAMOND GRAPH(〖Br〗_4) AND FAN GRAPH(F_3)

open access: yesBarekeng, 2022
If be a graph and edge coloring of G is a function , rainbow connection number is the minimum-k coloration of the rainbow on the edge of graph G and denoted by rc(G). Rainbow connection numbers can be applied to the result of operations on some special
Sumarno Ismail   +3 more
doaj   +1 more source

Hardness Results for Total Rainbow Connection of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2016
A total-colored path is total rainbow if both its edges and internal vertices have distinct colors. The total rainbow connection number of a connected graph G, denoted by trc(G), is the smallest number of colors that are needed in a total-coloring of G ...
Chen Lily, Huo Bofeng, Ma Yingbin
doaj   +1 more source

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