Results 11 to 20 of about 427 (193)

Even harmonious labelings of disjoint graphs with a small component

open access: yesAKCE International Journal of Graphs and Combinatorics, 2015
A graph G with q edges is said to be harmonious if there is an injection f from the vertices of G to the group of integers modulo q such that when each edge xy is assigned the label f(x)+f(y)(modq), the resulting edge labels are distinct. If G is a tree,
Joseph A. Gallian, Danielle Stewart
doaj   +3 more sources

Odd Harmonious Labelings of Cyclic Snakes

open access: yesInternational Journal on Applications of Graph Theory In wireless Ad Hoc Networks And sensor Networks, 2013
In [8] Liang and Bai have shown that the kC4 − snake graph is an odd harmonious graph for each k ≥ 1. In this paper we generalize this result on cycles by showing that the kCn − snake with string 1,1,…,1 when n ≡ 0 (mod 4) are odd harmonious graph.
openaire   +3 more sources

Harmonious Labeling On Helm Graphs

open access: yesDaya Matematis: Jurnal Inovasi Pendidikan Matematika, 2022
graph  consists of two sets, namely vertices and edges , which are sets that cannot be empty. The helmet graph is obtained from graph circle with addition side pendants with notation . Something graph  side  is said to be harmonious if there is an injective function  that produces function labeling side  which will result in a different sided label. In
Husnul Hatima, Nurdin Hinding, Muh Nur
openaire   +1 more source

All trees are six-cordial [PDF]

open access: yes, 2017
For any integer $k>0$, a tree $T$ is $k$-cordial if there exists a labeling of the vertices of $T$ by $\mathbb{Z}_k$, inducing a labeling on the edges with edge-weights found by summing the labels on vertices incident to a given edge modulo $k$ so that ...
Driscoll, Keith   +2 more
core   +2 more sources

PELABELAN HARMONIS GENAP SEJATI DARI BEBERAPA GRAF TERHUBUNG [PDF]

open access: yes, 2022
Pelabelan harmonis dari graf G dengan sisi merupakan suatu pemetaan injektif dari suatu titik yang ada pada graf G ke bilangan bulat modulo sehingga setiap sisi dilabeli () + () ( ) menghasilkan label sisi yang berbeda. Graf yang dilabeli menggunakan
Rahadjeng, Budi, Taqiyah, Diyanatut
core   +2 more sources

On SD-Harmonious Labeling

open access: yesMapana - Journal of Sciences, 2018
A graph G is said to be SD-harmonious labeling if there exists an injection f: V(G) -> {0,1,2,...,q} such that the induced function f*: E(G) ->{0,2,...,2q-2} defined by f(uv)=S+D (mod 2q) is bijective, where S=f(u)+f(v) and D=|f(u)-f(v)|, for every edge uv in E(G). A graph which admits SD-harmonious labeling is called SD-harmonious graph. In this
A Lourdusamy, S Jenifer Wency, F Patrick
openaire   +1 more source

(Di)graph products, labelings and related results [PDF]

open access: yes, 2017
Gallian's survey shows that there is a big variety of labelings of graphs. By means of (di)graphs products we can establish strong relations among some of them.
López Masip, Susana-Clara
core   +4 more sources

On the edge-balanced index sets of product graphs [PDF]

open access: yes, 2011
We characterize strongly edge regular product graphs and find the edge-balanced index sets of complete bipartite graphs without a perfect matching, the direct product $K_n\times K_2$.
Krop, Elliot   +2 more
core   +2 more sources

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