Results 41 to 50 of about 153,964 (249)

Generalized Turán Problems for Complete Bipartite Graphs

open access: yesGraphs and Combinatorics, 2022
AbstractFor graphs H, F and integer n, the generalized Turán number ex(n, H, F) denotes the maximum number of copies of H that an F-free n-vertex graph can have. We study this parameter when both H and F are complete bipartite graphs.
Gerbner, Dániel, Patkós, Balázs
openaire   +1 more source

Algorithmic Aspects of Secure Connected Domination in Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2021
Let G = (V, E) be a simple, undirected and connected graph. A connected dominating set S ⊆ V is a secure connected dominating set of G, if for each u ∈ V \ S, there exists v ∈ S such that (u, v) ∈ E and the set (S \ {v}) ∪ {u} is a connected dominating ...
Kumar Jakkepalli Pavan   +1 more
doaj   +1 more source

Eigensharp graphs: decomposition into complete bipartite subgraphs [PDF]

open access: yesTransactions of the American Mathematical Society, 1988
Let τ ( G ) \tau (G) be the minimum number of complete bipartite subgraphs needed to partition the edges of G G , and let r ( G ) r(G) be the larger of the number of positive and number of negative eigenvalues of G G . It is
Kratzke, Thomas   +2 more
openaire   +2 more sources

Decomposition of Certain Complete Bipartite Graphs into Prisms

open access: yesDiscussiones Mathematicae Graph Theory, 2017
Häggkvist [6] proved that every 3-regular bipartite graph of order 2n with no component isomorphic to the Heawood graph decomposes the complete bipartite graph K6n,6n.
Froncek Dalibor
doaj   +1 more source

On vertex stability of complete k-partite graphs [PDF]

open access: yesOpuscula Mathematica, 2015
Let \(H\) be any graph. We say that graph \(G\) is \(H\)-stable if \(G-u\) contains a subgraph isomorphic to \(H\) for an arbitrary chosen \(u\in V(G)\).
Mateusz Nikodem
doaj   +1 more source

Multicolor Ramsey Numbers For Complete Bipartite Versus Complete Graphs [PDF]

open access: yesJournal of Graph Theory, 2013
AbstractLet be graphs. The multicolor Ramsey number is the minimum integer r such that in every edge‐coloring of by k colors, there is a monochromatic copy of in color i for some . In this paper, we investigate the multicolor Ramsey number , determining the asymptotic behavior up to a polylogarithmic factor for almost all ranges of t and m. Several
Lenz, John, Mubayi, Dhruv
openaire   +2 more sources

-labeling of supersubdivided connected graph plus an edge

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Rosa, in his classical paper (Rosa, 1967) introduced a hierarchical series of labelings called and labeling as a tool to settle Ringel’s Conjecture which states that if is any tree with edges then the complete graph can be decomposed into copies of ...
G. Sethuraman, M. Sujasree
doaj   +1 more source

Decompositions of Circulant-Balanced Complete Multipartite Graphs Based on a Novel Labelling Approach

open access: yesJournal of Function Spaces, 2022
For applied scientists and engineers, graph theory is a strong and vital tool for evaluating and inventing solutions for a variety of issues. Graph theory is extremely important in complex systems, particularly in computer science.
A. El-Mesady, Omar Bazighifan
doaj   +1 more source

Decomposition of Certain Complete Graphs and Complete Multipartite Graphs into Almost-bipartite Graphs and Bipartite Graphs

open access: yesTheory and Applications of Graphs, 2020
In his classical paper [14], Rosa introduced a hierarchical series of labelings called ρ, σ, β and α labeling as a tool to settle Ringel’s Conjecture which states that if T is any tree with m edges then the complete graph K2m+1 can be decomposed into 2m + 1 copies of T .
Sethuraman, G., Sujasree, M.
openaire   +4 more sources

Data transfer using complete bipartite graph

open access: yes, 2017
Information exchange extent is an estimation of the amount of information sent between two focuses on a framework in a given time period. It is an extremely significant perception in present world.
V. M. Chandrasekaran   +3 more
semanticscholar   +1 more source

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