Results 41 to 50 of about 445,337 (327)

Counting Hamilton Cycles in Dirac Hypergraphs

open access: yesCombinatorica, 2023
AbstractFor $$0\le \ell <k$$ 0 ≤ ℓ < k , a Hamilton $$\ell $$ ℓ -cycle in a k-uniform hypergraph H is a cyclic ordering of the vertices of H in which the edges ...
Ferber, Asaf, Hardiman, Liam, Mond, Adva
openaire   +1 more source

Hamilton cycles in almost distance-hereditary graphs

open access: yesOpen Mathematics, 2016
Let G be a graph on n ≥ 3 vertices. A graph G is almost distance-hereditary if each connected induced subgraph H of G has the property dH(x, y) ≤ dG(x, y) + 1 for any pair of vertices x, y ∈ V(H).
Chen Bing, Ning Bo
doaj   +1 more source

Hamilton ℓ-cycles in uniform hypergraphs

open access: yesJournal of Combinatorial Theory, Series A, 2010
v3: corrected very minor error in Lemma 4.6 and the proof of Lemma 6 ...
Kühn, Daniela   +2 more
openaire   +2 more sources

Path separation by short cycles

open access: yes, 2016
Two Hamilton paths in $K_n$ are separated by a cycle of length $k$ if their union contains such a cycle. For small fixed values of $k$ we bound the asymptotics of the maximum cardinality of a family of Hamilton paths in $K_n$ such that any pair of paths ...
Cibulka   +9 more
core   +1 more source

A Note on Barnette’s Conjecture

open access: yesDiscussiones Mathematicae Graph Theory, 2013
Barnette conjectured that each planar, bipartite, cubic, and 3-connected graph is hamiltonian. We prove that this conjecture is equivalent to the statement that there is a constant c > 0 such that each graph G of this class contains a path on at least c ...
Harant Jochen
doaj   +1 more source

Cards of fixed points of some Lotka-Volterra operators [PDF]

open access: yesE-Journal of Analysis and Applied Mathematics
The paper considers a special type of the Lotka-Volterra operator operating in a four-dimensional simplex. The tournament corresponding to this operator has four cyclic triples. All kinds of fixed point cards are built for it. It is proved which types of
Dilfuza B. Eshmamatova   +1 more
doaj   +1 more source

Color‐biased Hamilton cycles in random graphs

open access: yesRandom Structures & Algorithms, 2021
AbstractWe prove that a random graph , with p above the Hamiltonicity threshold, is typically such that for any r‐coloring of its edges there exists a Hamilton cycle with at least edges of the same color. This estimate is asymptotically optimal.
Gishboliner, Lior   +2 more
openaire   +2 more sources

Parameterized TSP: Beating the Average [PDF]

open access: yes, 2014
In the Travelling Salesman Problem (TSP), we are given a complete graph $K_n$ together with an integer weighting $w$ on the edges of $K_n$, and we are asked to find a Hamilton cycle of $K_n$ of minimum weight.
Gutin, Gregory, Patel, Viresh
core  

Design and Prototyping of Topology‐Optimized, Additively Manufactured Lightweight Components for Space Robotic Systems: A Case Study

open access: yesAdvanced Engineering Materials, EarlyView.
The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos   +11 more
wiley   +1 more source

Notes on sufficient conditions for a graph to be Hamiltonian

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
The first part of this paper deals with an extension of Dirac's Theorem to directed graphs. It is related to a result often referred to as the Ghouila-Houri Theorem.
Michael Joseph Paul   +2 more
doaj   +1 more source

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