Results 11 to 20 of about 46,480 (299)

The crossing numbers of join products of paths with three graphs of order five [PDF]

open access: yesOpuscula Mathematica, 2022
The main aim of this paper is to give the crossing number of the join product \(G^\ast+P_n\) for the disconnected graph \(G^\ast\) of order five consisting of the complete graph \(K_4\) and one isolated vertex, where \(P_n\) is the path on \(n\) vertices.
Michal Staš, Mária Švecová
doaj   +1 more source

Every graph is local antimagic total and its applications [PDF]

open access: yesOpuscula Mathematica, 2023
Let \(G = (V,E)\) be a simple graph of order \(p\) and size \(q\). A graph \(G\) is called local antimagic (total) if \(G\) admits a local antimagic (total) labeling. A bijection \(g : E \to \{1,2,\ldots,q\}\) is called a local antimagic labeling of \(G\)
Gee-Choon Lau   +2 more
doaj   +1 more source

Distance antimagic labelings of product graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2023
A graph G is distance antimagic if there is a bijection f : V(G)→{1, 2, …, |V(G)|} such that for every pair of distinct vertices x and y applies w(x)≠w(y), where w(x)=Σ z ∈ N(x)f(z) and N(x) is the neighbourhood of x, i.e., the set of all vertices ...
Risma Yulina Wulandari   +1 more
doaj   +1 more source

On the crossing numbers of join products of five graphs of order six with the discrete graph [PDF]

open access: yesOpuscula Mathematica, 2020
The main purpose of this article is broaden known results concerning crossing numbers for join of graphs of order six. We give the crossing number of the join product \(G^{\ast} + D_n\), where the disconnected graph \(G^{\ast}\) of order six consists of ...
Michal Staš
doaj   +1 more source

ALTERNATIVE PROOF ON THE CROSSING NUMBER OF K1,1,3,N [PDF]

open access: yesActa Electrotechnica et Informatica, 2019
The main aim of the paper is to give the crossing number of join product G+Dn for the connected graph G of order five isomorphic with the complete tripartite graph K1,1,3, where Dn consists on n isolated vertices.
Michal STAS
doaj   +1 more source

The crossing numbers of join products of eight graphs of order six with paths and cycles

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2023
The crossing number $\mathrm{cr}(G)$ of a graph $G$ is the minimum number of edge crossings over all drawings of $G$ in the plane. The main aim of this paper is to give the crossing numbers of the join products of eight graphs on six vertices with paths ...
M. Staš
doaj   +1 more source

On the crossing numbers of join products of W_{4}+P_{n} and W_{4}+C_{n} [PDF]

open access: yesOpuscula Mathematica, 2021
The crossing number \(\mathrm{cr}(G)\) of a graph \(G\) is the minimum number of edge crossings over all drawings of \(G\) in the plane. The main aim of the paper is to give the crossing number of the join product \(W_4+P_n\) and \(W_4+C_n\) for the ...
Michal Staš, Juraj Valiska
doaj   +1 more source

The Crossing Number of Cartesian Product of 5-Wheel with any Tree

open access: yesDiscussiones Mathematicae Graph Theory, 2021
In this paper, we establish the crossing number of join product of 5-wheel with n isolated vertices. In addition, the exact values for the crossing numbers of Cartesian products of the wheels of order at most five with any tree T are given.
Wang Yuxi, Huang Yuanqiu
doaj   +1 more source

The crossing numbers of join products of four graphs of order five with paths and cycles [PDF]

open access: yesOpuscula Mathematica, 2023
The crossing number \(\mathrm{cr}(G)\) of a graph \(G\) is the minimum number of edge crossings over all drawings of \(G\) in the plane. In the paper, we extend known results concerning crossing numbers of join products of four small graphs with paths ...
Michal Staš, Mária Timková
doaj   +1 more source

Optimized Theta-Join Processing

open access: yes, 2021
The Theta-Join is a powerful operation to connect tuples of different relational tables based on arbitrary conditions. The operation is a fundamental requirement for many data-driven use cases, such as data cleaning, consistency checking, and hypothesis ...
Papenbrock, Thorsten   +2 more
core   +1 more source

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