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Supermagic Graphs with Many Different Degrees

open access: yesDiscussiones Mathematicae Graph Theory, 2021
Let G = (V, E) be a graph with n vertices and e edges. A supermagic labeling of G is a bijection f from the set of edges E to a set of consecutive integers {a, a + 1, . . .
Kovář Petr   +3 more
doaj   +1 more source

On L(2, 1)-Labelings of Oriented Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2022
We extend a result of Griggs and Yeh about the maximum possible value of the L(2, 1)-labeling number of a graph in terms of its maximum degree to oriented graphs.
Colucci Lucas, Győri Ervin
doaj   +1 more source

On Edge H-Irregularity Strengths of Some Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2021
For a graph G an edge-covering of G is a family of subgraphs H1, H2, . . . , Ht such that each edge of E(G) belongs to at least one of the subgraphs Hi, i = 1, 2, . . . , t. In this case we say that G admits an (H1, H2, . . . , Ht)-(edge) covering.
Naeem Muhammad   +4 more
doaj   +1 more source

Divided square difference cordial Labeling of join some spider graphs [PDF]

open access: yesE3S Web of Conferences, 2023
Let G be a graph with its vertices and edges. On defining bijective function ρ:V(G) →{0,1,...,p}. For each edge assign the label with 1 if ρ*(ab)= | ρ(a)2−ρ(b)2/ρ(a)−ρ(b) | is odd or 0 otherwise such that |eρ(1) − eρ(0)| ≤ 1 then the labeling is called ...
Christy T., Palani G.
doaj   +1 more source

Trees Whose Even-Degree Vertices Induce a Path are Antimagic

open access: yesDiscussiones Mathematicae Graph Theory, 2022
An antimagic labeling of a connected graph G is a bijection from the set of edges E(G) to {1, 2, . . ., |E(G)|} such that all vertex sums are pairwise distinct, where the vertex sum at vertex v is the sum of the labels assigned to edges incident to v.
Lozano Antoni   +3 more
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

SEMT valuation and strength of subdivided star of K 1,4

open access: yesOpen Mathematics, 2020
This study focuses on finding super edge-magic total (SEMT) labeling and deficiency of imbalanced fork and disjoint union of imbalanced fork with star, bistar and path; in addition, the SEMT strength for Imbalanced Fork is investigated.
Kanwal Salma   +6 more
doaj   +1 more source

On Face Irregular Evaluations of Plane Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2022
We investigate face irregular labelings of plane graphs and we introduce new graph characteristics, namely face irregularity strength of type (α,β,γ). We obtain some estimation on these parameters and determine the precise values for certain families of ...
Bača Martin   +3 more
doaj   +1 more source

ℤ2 × ℤ2-Cordial Cycle-Free Hypergraphs

open access: yesDiscussiones Mathematicae Graph Theory, 2021
Hovey introduced A-cordial labelings as a generalization of cordial and harmonious labelings [7]. If A is an Abelian group, then a labeling f : V (G) → A of the vertices of some graph G induces an edge labeling on G; the edge uv receives the label f(u) +
Cichacz Sylwia   +2 more
doaj   +1 more source

Vertex Graceful Labeling-Some Path Related Graphs [PDF]

open access: yes, 2013
Treating subjects as vertex graceful graphs, vertex graceful labeling, caterpillar, actinia graphs, Smarandachely vertex m ...
Balaganesan, P.   +2 more
core   +1 more source

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