Results 11 to 20 of about 5,140 (295)

Graceful labeling of digraphs—a survey [PDF]

open access: yesAKCE International Journal of Graphs and Combinatorics, 2021
A digraph D with p vertices and q arcs is labeled by assigning a distinct integer value g(v) from to each vertex v. The vertex values, in turn, induce a value g(u, v) on each arc (u, v) where g(u, v) = (g(v) − g(u)) (mod q + 1) If the arc values are all distinct then the labeling is called a graceful labeling of digraph. In this survey article, we have
Shivarajkumar   +2 more
openaire   +2 more sources

m -Bonacci graceful labeling [PDF]

open access: yesAKCE International Journal of Graphs and Combinatorics, 2021
We introduce new labeling called m-bonacci graceful labeling. A graph G on n edges is m-bonacci graceful if the vertices can be labeled with distinct integers from the set such that the derived edge labels are the first n m-bonacci numbers. We show that complete graphs, complete bipartite graphs, gear graphs, triangular grid graphs, and wheel graphs ...
Kalpana Mahalingam   +1 more
openaire   +2 more sources

A new class of graceful graphs: k-enriched fan graphs and their characterisations

open access: yesCubo, 2021
The Graceful Tree Conjecture stated by Rosa in the mid 1960s says that every tree can be gracefully labelled. It is one of the best known open problems in Graph Theory.
M. Haviar, S. Kurtulík
doaj   +1 more source

PELABELAN ODD-GRACEFUL PADA GRAF PRODUK SISIR

open access: yesMajalah Ilmiah Matematika dan Statistika, 2022
Gnanajothi defined a graph with edges to be odd-graceful if there is an injective function such that if every edge is labelled with the resulting edge labels are . She proved that the graph obtained by joining one pendant to every vertex in is odd-
Juan Daniel   +3 more
doaj   +1 more source

Exploring Relationship Between Traditional Lattices and Graph Lattices of Topological Coding

open access: yesJisuanji kexue yu tansuo, 2021
It is known that there are no polynomial quantum algorithms to solve some lattice difficult problems. Uncolored graphic lattice and colored graphic lattice are the products of multidisciplinary intersection inspired by lattice theory. A uncolored graphic
ZHANG Mingjun, YANG Sihua, YAO Bing
doaj   +1 more source

A Study of Independency on Fuzzy Resolving Sets of Labelling Graphs

open access: yesMathematics, 2023
Considering a fuzzy graph G is simple and can be connected and considered as a subset H=u1,σu1,u2,σu2,…uk,σuk, |H|≥2; then, every two pairs of elements of σ−H have a unique depiction with the relation of H, and H can be termed as a fuzzy resolving set ...
Ramachandramoorthi Shanmugapriya   +3 more
doaj   +1 more source

Graceful Labeling of Hypertrees

open access: yesJournal of Mathematics Research, 2021
Graph labeling is considered as one of the most interesting areas in graph theory. A labeling for a simple graph G (numbering or valuation), is an association of non -negative integers to vertices of G  (vertex labeling) or to edges of G  (edge labeling) or both of them.
H. El-Zohny   +3 more
openaire   +2 more sources

Odd Harmonious Labeling of Some Graphs [PDF]

open access: yes, 2012
The labeling of discrete structures is a potential area of research due to its wide range of applications.
Shah, N.H., Vaidya, S.K.
core   +1 more source

Relaxed Graceful Labellings of Trees [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2002
A graph $G$ on $m$ edges is considered graceful if there is a labelling $f$ of the vertices of $G$ with distinct integers in the set $\{0,1,\dots,m\}$ such that the induced edge labelling $g$ defined by $g(uv)=|f(u)-f(v)|$ is a bijection to $\{1,\dots,m\}$. We here consider some relaxations of these conditions as applied to tree labellings: 1.
openaire   +2 more sources

Special Graceful Labelings of Irregular Fences and Lobsters

open access: yesUniversal Journal of Mathematics and Applications, 2019
Irregular fences are subgraphs of $P_m \times P_n$ formed with $m$ copies of $P_n$ in such a way that two consecutive copies of $P_n$ are connected with one or two edges; if two edges are used, then they are located in levels separated an odd number of ...
Christian Barrientos
doaj   +1 more source

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