Results 21 to 30 of about 1,632,039 (225)

Graceful Labeling of Hypertrees

open access: yesJournal of Mathematics Research, 2021
Graph labeling is considered as one of the most interesting areas in graph theory. A labeling for a simple graph G (numbering or valuation), is an association of non -negative integers to vertices of G  (vertex labeling) or to edges of G  (edge labeling) or both of them.
H. El-Zohny   +3 more
openaire   +2 more sources

Odd Harmonious Labeling of Some Graphs [PDF]

open access: yes, 2012
The labeling of discrete structures is a potential area of research due to its wide range of applications.
Shah, N.H., Vaidya, S.K.
core   +1 more source

Prime Graceful Labeling

open access: yesInternational Journal of Engineering & Technology, 2018
A graph G with m vertices and n edges, is said to be prime graceful labeling, if there is an injection   from the vertices of G to {1, 2, ..., k} where k = min {2m, 2n} such that  gcd ( ( ),  ( )=1 and the induced injective function   from the edges of G to {1, 2, ..., k − 1} defined by  ( ) = |  ( ) − ( ) | , the resulting edge labels are distinct. In
T. Hameed Hassan, R. Mohammad Abbas
openaire   +2 more sources

Graceful Labelling of Edge Amalgamation of Cycle Graph

open access: yesJournal of Physics: Conference Series, 2018
There are various topics in graph theory. The theory of labelling is one of the topics in graph theory. The theory of labelling was introduced firstly by Alex Rosa in 1967.
D. E. Nurvazly, K. Sugeng
semanticscholar   +1 more source

Special Graceful Labelings of Irregular Fences and Lobsters

open access: yesUniversal Journal of Mathematics and Applications, 2019
Irregular fences are subgraphs of $P_m \times P_n$ formed with $m$ copies of $P_n$ in such a way that two consecutive copies of $P_n$ are connected with one or two edges; if two edges are used, then they are located in levels separated an odd number of ...
Christian Barrientos
doaj   +1 more source

A Translational Approach to Constraint Answer Set Solving [PDF]

open access: yes, 2010
We present a new approach to enhancing Answer Set Programming (ASP) with Constraint Processing techniques which allows for solving interesting Constraint Satisfaction Problems in ASP. We show how constraints on finite domains can be decomposed into logic
Drescher, Christian, Walsh, Toby
core   +2 more sources

Odd graceful labeling on the Ilalang graph (Sn , 3) it’s variation

open access: yes, 2021
A graph called odd graceful graph if there is an injective mapping f:V(G) → {0,1,2,…,2q − 1} such that for each edge xy 6 E(G) labeled by |f(u) − f(v)|, and the results willform a label on the edge {1,3,5, …,2q − 1} which is bijective.
Z. Amri   +3 more
semanticscholar   +1 more source

GRACEFUL LABELING OF HANGING THETA GRAPHS [PDF]

open access: yesInternational Journal of Pure and Apllied Mathematics, 2013
Summary: In this paper, we introduce a new class of hanging theta graphs and prove that those graphs admit graceful labeling.
Janakiraman, T. N., Sathiamoorthy, G.
openaire   +1 more source

Extending of Edge Even Graceful Labeling of Graphs to Strong r -Edge Even Graceful Labeling [PDF]

open access: yesJournal of Mathematics, 2021
Edge even graceful labeling of a graph G with p vertices and q edges is a bijective
Mohamed R. Zeen El Deen, Nora A. Omar
openaire   +3 more sources

Automatically generating streamlined constraint models with ESSENCE and CONJURE [PDF]

open access: yes, 2015
Streamlined constraint reasoning is the addition of uninferred constraints to a constraint model to reduce the search space, while retaining at least one solution.
AM Frisch   +11 more
core   +1 more source

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