Results 41 to 50 of about 412,708 (144)

Distance antimagic labelings of Cartesian product of graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Let be a graph of order n. Let be a bijection. The weight w(v) of a vertex v with respect to the labeling f is defined by where N(v) is the open neighborhood of v. The labeling f is called a distance antimagic labeling if for any two distinct vertices v1,
Nancy Jaseintha Cutinho   +2 more
doaj   +1 more source

Multi-bridge graphs are anti-magic

open access: yesElectronic Journal of Graph Theory and Applications, 2022
An anti-magic graph  is a graph whose |E| edges  can be labeled with the first  |E| natural numbers such that each edge receives a distinct number and each vertex receives a distinct vertex sum which is obtained by taking the sum of the labels of all the
Yu Bin Tai, Gek Ling Chia, Poh-Hwa Ong
doaj   +1 more source

On the (Consecutively) Super Edge‐Magic Deficiency of Subdivision of Double Stars

open access: yesJournal of Mathematics, Volume 2020, Issue 1, 2020., 2020
Let G be a finite, simple, and undirected graph with vertex set V(G) and edge set E(G). A super edge‐magic labeling of G is a bijection f : V(G) ∪ E(G)⟶{1,2, …, |V(G)| + |E(G)|} such that f(V(G)) = {1,2, …, |V(G)|} and f(u) + f(uv) + f(v) is a constant for every edge uv ∈ E(G).
Vira Hari Krisnawati   +4 more
wiley   +1 more source

On the Integer-antimagic Spectra of Non-Hamiltonian Graphs

open access: yesTheory and Applications of Graphs, 2022
Let $A$ be a nontrivial abelian group. A connected simple graph $G = (V, E)$ is $A$-\textbf{antimagic} if there exists an edge labeling $f: E(G) \to A \setminus \{0\}$ such that the induced vertex labeling $f^+: V(G) \to A$, defined by $f^+(v) = \Sigma$ $
Wai Shiu, Richard Low
doaj   +1 more source

Tree‐Antimagicness of Web Graphs and Their Disjoint Union

open access: yesMathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
In graph theory, the graph labeling is the assignment of labels (represented by integers) to edges and/or vertices of a graph. For a graph G = (V, E), with vertex set V and edge set E, a function from V to a set of labels is called a vertex labeling of a graph, and the graph with such a function defined is called a vertex‐labeled graph.
Zhijun Zhang   +6 more
wiley   +1 more source

-super antimagic total labeling of comb product of graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2019
Let and be two simple, nontrivial and undirected graphs. Let be a vertex of , the comb product between and , denoted by , is a graph obtained by taking one copy of and copies of and grafting the th copy of at the vertex to the th vertex of .
Ika Hesti Agustin   +2 more
doaj   +2 more sources

H‐Coverings of Path‐Amalgamated Ladders and Fans

open access: yesMathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
Let G be a connected, simple graph with finite vertices v and edges e. A family G1,G2,…,Gp⊂G of subgraphs such that for all e ∈ E, e∈Gl, for some l, l = 1,2, …, p is an edge‐covering of G. If Gl≅ℍ, ∀l, then G has an ℍ‐covering. Graph G with ℍ‐covering is an (ad, d)‐ℍ‐antimagic if ψ:VG∪EG⟶1,2,…,v+e a bijection exists and the sum over all vertex‐weights ...
Yijun Xiong   +6 more
wiley   +1 more source

Lexicographic product graphs P m [ P n ] are antimagic

open access: yesAKCE International Journal of Graphs and Combinatorics, 2018
A graph with q edges is called a n t i m a g i c if its edges can be labeled with 1, 2, …, q such that the sums of the labels on the edges incident to each vertex are distinct.
Wenhui Ma   +3 more
doaj   +2 more sources

On super --antimagic total labeling of disjoint union of cycles

open access: yesAKCE International Journal of Graphs and Combinatorics, 2018
Let and be finite simple graphs where every edge of belongs to at least one subgraph that is isomorphic to . An --antimagic total labeling of a graph is a bijection such that for all subgraphs isomorphic to , the -weights, form an arithmetic progression ...
Faisal Susanto
doaj   +2 more sources

On the Construction of the Reflexive Vertex k‐Labeling of Any Graph with Pendant Vertex

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2020, Issue 1, 2020., 2020
A total k‐labeling is a function fe from the edge set to first natural number ke and a function fv from the vertex set to non negative even number up to 2kv, where k = max{ke, 2kv}. A vertex irregular reflexive k -labeling of a simple, undirected, and finite graph G is total k‐labeling, if for every two different vertices x and x′ of G, wt(x) ≠ wt(x′),
I. H. Agustin   +5 more
wiley   +1 more source

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