Results 41 to 50 of about 4,036,327 (265)

Directed Hamilton Cycles in Digraphs and Matching Alternating Hamilton Cycles in Bipartite Graphs [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2013
16 pages, 7 figures, published on "Siam Journal on Discrete Mathematics"
Zhang, Zan-Bo   +2 more
openaire   +2 more sources

A Note Concerning Hamilton Cycles in Some Classes of Grid Graphs

open access: yesJournal of Mathematical and Fundamental Sciences, 2013
A graph G is called hamiltonian if it contains a Hamilton cycle, i.e. a cycle containing all vertices. Deciding whether a given graph has a Hamilton cycle is an NP-complete problem. But, it is a polynomial problem within some special graph classes.
A. N.M. Salman   +2 more
doaj   +1 more source

Trends, Cycles and Seasonal Variations of Ukrainian Gross Domestic Product [PDF]

open access: yesFinancial Markets, Institutions and Risks, 2020
The article attempts to study trends, seasonal variations and cyclical fluctuations of Ukraine’s quarterly GDP at current prices. The period of the study is from the first quarter of 2010 to the first quarter of 2020.
Debesh Bhowmik
doaj   +1 more source

Families of triples with high minimum degree are hamiltonian

open access: yesDiscussiones Mathematicae Graph Theory, 2014
In this paper we show that every family of triples, that is, a 3-uniform hypergraph, with minimum degree at least contains a tight Hamiltonian ...
Rödl Vojtech, Ruciński Andrzej
doaj   +1 more source

Matchings and Hamilton cycles in hypergraphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
It is well known that every bipartite graph with vertex classes of size $n$ whose minimum degree is at least $n/2$ contains a perfect matching. We prove an analogue of this result for uniform hypergraphs. We also provide an analogue of Dirac's theorem on
Daniela Kühn, Deryk Osthus
doaj   +1 more source

Large Sets of Hamilton Cycle and Path Decompositions of Complete Bipartite Graphs

open access: yesGraphs Comb., 2013
In this paper, we determine the existence spectrums for large sets of Hamilton cycle and path (resp. directed Hamilton cycle and path) decompositions of λKm, n (resp. $${\lambda K^{*}_{m,n}}$$).
Hongtao Zhao, Q. Kang
semanticscholar   +2 more sources

Hamilton Cycles in Double Generalized Petersen Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2019
Coxeter referred to generalizing the Petersen graph. Zhou and Feng modified the graphs and introduced the double generalized Petersen graphs (DGPGs). Kutnar and Petecki proved that DGPGs are Hamiltonian in special cases and conjectured that all DGPGs are
Sakamoto Yutaro
doaj   +1 more source

Removable Edges on a Hamilton Cycle or Outside a Cycle in a 4-Connected Graph

open access: yesDiscussiones Mathematicae Graph Theory, 2021
Let G be a 4-connected graph. We call an edge e of G removable if the following sequence of operations results in a 4-connected graph: delete e from G; if there are vertices with degree 3 in G− e, then for each (of the at most two) such vertex x, delete ...
Wu Jichang   +3 more
doaj   +1 more source

A new algorithm to find fuzzy Hamilton cycle in a fuzzy network using adjacency matrix and minimum vertex degree

open access: yesSpringerPlus, 2016
A Hamiltonian cycle in a graph is a cycle that visits each node/vertex exactly once. A graph containing a Hamiltonian cycle is called a Hamiltonian graph.
A. Nagoor Gani, S. Latha
semanticscholar   +1 more source

Hamilton cycles in dense vertex-transitive graphs [PDF]

open access: yes, 2014
A famous conjecture of Lov\'asz states that every connected vertex-transitive graph contains a Hamilton path. In this article we confirm the conjecture in the case that the graph is dense and sufficiently large.
Alon   +28 more
core   +2 more sources

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