Results 21 to 30 of about 19,166,067 (60)

Super Total Local Antimagic Vertex Coloring of Graphs

open access: yes, 2023
Let $G = (V,E)$ be a finite simple undirected graph without isolated vertices. A bijective map $f: V \cup E \rightarrow \{1,2, \dots, |V|+ |E| \}$ is called total local antimagic labeling if for each edge $uv \in E, w(u) \ne w(v)$, where $w(v)$ is a ...
Pawar, Ravindra, Singh, Tarkeshwar
core   +1 more source

On bridge graphs with local antimagic chromatic number 3

open access: yes, 2023
Let $G=(V, E)$ be a connected graph. A bijection $f: E\to \{1, \ldots, |E|\}$ is called a local antimagic labeling if for any two adjacent vertices $x$ and $y$, $f^+(x)\neq f^+(y)$, where $f^+(x)=\sum_{e\in E(x)}f(e)$ and $E(x)$ is the set of edges ...
Lau, G. C., Shiu, W. C., Zhang, R. X.
core  

On local antimagic chromatic numbers of circulant graphs join with null graphs or cycles

open access: yes, 2023
An edge labeling of a graph G = (V,E) is said to be local antimagic if there is a bijection f : E → {1,..., |E|} such that for any pair of adjacent vertices x and y, f +(x) ≠ f +(y), where the induced vertex label is f +(x) = ?
G. C. Lau   +8 more
core   +1 more source

Local Antimagic Coloring of Some Graphs [PDF]

open access: yes, 2023
Given a graph $G =(V,E)$, a bijection $f: E \rightarrow \{1, 2, \dots,|E|\}$ is called a local antimagic labeling of $G$ if the vertex weight $w(u) = \sum_{uv \in E} f(uv)$ is distinct for all adjacent vertices.
Pawar, Ravindra   +3 more
core   +1 more source

A note on local edge antimagic chromatic number of graphs

open access: yes
Let $G$ be a finite, undirected and simple graph. A bijection $f : V(G) \to [1,|V(G)|]$ is called a local edge antimagic labeling if for any two adjacent edges $uv,vw \in E(G), f(u) \ne f(w)$.
Maryati, Tita Khalis   +1 more
core   +1 more source

The harmonious chromatic number of almost all trees [PDF]

open access: yes, 1995
A harmonious colouring of a simple graph G is a proper vertex colouring such that each pair of colours appears together on at most one edge. The harmonious chromatic number h(G) is the least number of colours in such a colouring.For any positive integer ...
Edwards, Keith
core   +1 more source

On local antimagic chromatic number of the join of two special families of graphs -- II [PDF]

open access: yes
It is known that null graphs and 1-regular graphs are the only regular graphs without local antimagic chromatic number. In this paper, we proved that the join of 1-regular graph and a null graph has local antimagic chromatic number is 3. Consequently, we
Lau, Gee-Choon, Shiu, Wai Chee
core   +1 more source

Local Total Antimagic Chromatic Number for the Disjoint Union of Star Graphs

open access: yes
Let $G$ be a graph with $n$ vertices and $m$ edges without  isolated vertices.A local total antimagic labeling of a graph $G$ is defined as there is a bijection $f:V(G)\cup E(G)\rightarrow \{ 1,2,...,n+m\}$, with for any two adjacent vertices $u$ and $v$
Moviri Chettiar Nalliah   +1 more
core   +1 more source

The Local Antimagic On Disjoint Union of Some Family Graphs [PDF]

open access: yes, 2019
A graph  in this paper is nontrivial, finite, connected, simple, and undirected. Graph  consists of a vertex set and edge set. Let u,v be two elements in vertex set, and q is the cardinality of edge set in G, a bijective function from the edge ...
Marsidi, Marsidi, Agustin, Ika Hesti
core   +1 more source

A note on local antimagic chromatic number of lexicographic product graphs

open access: yes, 2022
Let $G = (V,E)$ be a connected simple graph. A bijection $f: E \rightarrow \{1,2,\ldots,|E|\}$ is called a local antimagic labeling of $G$ if $f^+(u) \neq f^+(v)$ holds for any two adjacent vertices $u$ and $v$, where $f^+(u) = \sum_{e\in E(u)} f(e)$ and
Nalliah, M.   +4 more
core  

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