Results 41 to 50 of about 235,976 (317)

On the hamiltonicity of the cartesian product

open access: yesInformation Processing Letters, 2005
We examine the hamiltonicity of the cartesian product P = G1×G2 of two graphs G1, G2. We provide necessary and/or sufficient conditions for P to be hamiltonian, depending on the hamiltonian properties of G1 and G2, with corresponding constructions. We also prove a conjecture by Batagelj and Pisanski related to the 'cyclic hamiltonicity' of a graph.
Dimakopoulos, V. V.   +2 more
openaire   +2 more sources

Adjacent vertex distinguishing acyclic edge coloring of the Cartesian product of graphs [PDF]

open access: yesTransactions on Combinatorics, 2017
‎Let $G$ be a graph and $chi^{prime}_{aa}(G)$ denotes the minimum number of colors required for an‎ ‎acyclic edge coloring of $G$ in which no two adjacent vertices are incident to edges colored with the same set of colors‎. ‎We prove a general bound for $
Fatemeh Sadat Mousavi, Massomeh Noori
doaj   +1 more source

Cartesian products as profinite completions [PDF]

open access: yesInternational Mathematics Research Notices, 2006
We prove that if a Cartesian product of alternating groups is topologically finitely generated, then it is the profinite completion of a finitely generated residually finite group. The same holds for Cartesian producs of other simple groups under some natural restrictions.
Kassabov, M, Nikolov, N
openaire   +4 more sources

MDR codes and self-dual codes on Cartesian product codes

open access: yesTongxin xuebao, 2010
A Cartesian product code of the linear codes C1 , , C s in 1 , ,Z r Z rs was defined. According to the theorem of submodulo isomorphism, the relationship between the rank of the Cartesian product code C1 × C 2 × × Cs over Z r1 × Z r2 × × Zrsand C1 , C 2,
LIU Xiu-sheng
doaj   +2 more sources

On a product of universal hyperalgebras

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015
We introduce and study a new operation of product of universal hyperalgebras which lies, with respect to set inclusion, between the cartesian product of the hyperalgebras and the cartesian product of their idempotent hulls.
Chaisansuk Nitima, Šlapal Josef
doaj   +1 more source

Total irregularity strength for product of two paths

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
In this paper we define a totally irregular total labeling for Cartesian and strong product of two paths, which is at the same time vertex irregular total labeling and also edge irregular total labeling.
Muhammad Kamran Siddiqui   +2 more
doaj   +1 more source

Transitive simple subgroups of wreath products in product action

open access: yes, 2003
A transitive simple subgroup of a finite symmetric group is very rarely contained in a full wreath product in product action. All such simple permutation groups are determined in this paper.
Baddeley, Robert W.   +2 more
core   +2 more sources

Comparative Wear and Friction Analysis of Sliding Surface Materials for Hydrostatic Bearing under Oil Supply Failure Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec   +6 more
wiley   +1 more source

On the Crossing Numbers of Cartesian Products of Wheels and Trees

open access: yesDiscussiones Mathematicae Graph Theory, 2017
Bokal developed an innovative method for finding the crossing numbers of Cartesian product of two arbitrarily large graphs. In this article, the crossing number of the join product of stars and cycles are given.
Klešč Marián   +2 more
doaj   +1 more source

Betweenness centrality in Cartesian product of graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Betweenness centrality is a widely used measure in various graphs and it has a pivotal role in the analysis of complex networks. It measures the potential or power of a node to control the communication over the network.
Sunil Kumar R., Kannan Balakrishnan
doaj   +1 more source

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