Results 11 to 20 of about 140,780 (247)

The Extremal Number of the Subdivisions of the Complete Bipartite Graph [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2019
For a graph $F$, the $k$-subdivision of $F$, denoted $F^k$, is the graph obtained by replacing the edges of $F$ with internally vertex-disjoint paths of length $k$.
Oliver Janzer
semanticscholar   +1 more source

A Novel Approach for Cyclic Decompositions of Balanced Complete Bipartite Graphs into Infinite Graph Classes

open access: yesJournal of Function Spaces, 2022
Graph theory is considered an attractive field for finding the proof techniques in discrete mathematics. The results of graph theory have applications in many areas of social, computing, and natural sciences.
A. El-Mesady   +2 more
doaj   +1 more source

Complete bipartite graph is a totally irregular total graph

open access: yesElectronic Journal of Graph Theory and Applications, 2021
A graph G is called a totally irregular total k-graph if it has a totally irregular total k-labeling λ : V ∪ E→ 1, 2, ... , k, that is a total labeling such that for any pair of different vertices x and y of G, their weights wt(x) and wt(y) are distinct,
Meilin I. Tilukay   +4 more
doaj   +1 more source

On bipartite divisor graph for character degrees [PDF]

open access: yesInternational Journal of Group Theory, 2017
‎‎The concept of the bipartite divisor graph for integer subsets has been considered in [M‎. ‎A‎. ‎Iranmanesh and C‎. ‎E‎. ‎Praeger‎, ‎Bipartite divisor graphs for integer subsets‎, Graphs Combin.‎,  26 (2010) 95--105.]‎.
Seyed Ali Moosavi
doaj   +1 more source

Weak saturation numbers of K2 , t and K p ⋃ K q

open access: yesAKCE International Journal of Graphs and Combinatorics, 2019
A graph G is weakly F-saturated if G contains no copy of F, and there is an ordering of all edges of G¯so that if they are added one at a time, they form a complete graph and each edge added creates a new copy of F.
Yajuan Cui, Liqun Pu
doaj   +2 more sources

Decomposition of complete graphs into small graphs [PDF]

open access: yesOpuscula Mathematica, 2010
In 1967, A. Rosa proved that if a bipartite graph \(G\) with \(n\) edges has an \(\alpha\)-labeling, then for any positive integer \(p\) the complete graph \(K_{2np+1}\) can be cyclically decomposed into copies of \(G\).
Dalibor Froncek
doaj   +1 more source

Teorema Pohon Matriks Untuk Menentukan Banyaknya Pohon Rentangan Graf Bipartisi Komplit (Km,n)

open access: yesFokus, 2016
This research aims to observes panning tree number of complete bipartite graph (Km,n) by matrix-tree theorem.This research was using library research method which the step are:(1)Drawing complete bipartite graph (Km,n) where m= 1,2,3,4,and; (2)Determinin
Novia Rahmawati
doaj   +1 more source

Some New Results on Lucky Labeling

open access: yesمجلة بغداد للعلوم, 2023
Czerwi’nski et al. introduced Lucky labeling in 2009 and Akbari et al and A.Nellai Murugan et al studied it further. Czerwi’nski defined Lucky Number of graph as follows: A labeling of vertices of a graph G is called a Lucky labeling if  for every pair ...
J. Ashwini   +2 more
doaj   +1 more source

Rainbow perfect matchings in r-partite graph structures [PDF]

open access: yes, 2016
A matching M in an edge–colored (hyper)graph is rainbow if each pair of edges in M have distinct colors. We extend the result of Erdos and Spencer on the existence of rainbow perfect matchings in the complete bipartite graph Kn,n to complete bipartite ...
Cano Vila, María del Pilar   +2 more
core   +2 more sources

Orthogonal double cover of Complete Bipartite Graph by disjoint union of complete bipartite graphs

open access: yesAin Shams Engineering Journal, 2015
Let H be a graph on n vertices and G a collection of n subgraphs of H, one for each vertex, G is an orthogonal double cover (ODC) of H if every edge of H occurs in exactly two members of G and any two members share an edge whenever the corresponding ...
S. El-Serafi   +2 more
doaj   +1 more source

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