Results 1 to 10 of about 547 (79)

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

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

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

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 graphs associated to ring of Guassian integers and ring of integers modulo n

open access: yesActa Universitatis Sapientiae: Informatica, 2022
For a commutative ring R with identity 1, the zero-divisor graph of R, denoted by Γ(R), is a simple graph whose vertex set is the set of non-zero zero divisors Z*(R) and the two vertices x and y ∈ Z*(R) are adjacent if and only if xy = 0.
Pirzada S., Bhat M. Imran
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 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

Some new results on colour-induced signed graphs

open access: yesActa Universitatis Sapientiae: Informatica, 2022
A signed graph is a graph in which positive or negative signs are assigned to its edges. We consider equitable colouring and Hamiltonian colouring to obtain induced signed graphs.
Sudheer Niranjana   +3 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

Metric and upper dimension of zero divisor graphs associated to commutative rings

open access: yesActa Universitatis Sapientiae: Informatica, 2020
Let R be a commutative ring with Z*(R) as the set of non-zero zero divisors. The zero divisor graph of R, denoted by Γ(R), is the graph whose vertex set is Z*(R), where two distinct vertices x and y are adjacent if and only if xy = 0.
Pirzada S., Aijaz M.
doaj   +1 more source

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