Results 21 to 30 of about 52,480 (200)

Enforced hamiltonian cycles in generalized dodecahedra

open access: yesElectronic Journal of Graph Theory and Applications, 2013
The H-force number of a hamiltonian graph G is the smallest number k with the property that there exists a set W ⊆ V (G) with |W| = k such that each cycle passing through all vertices of W is a hamiltonian cycle.
Maria Timkova
doaj   +1 more source

Arc-Disjoint Hamiltonian Paths in Strong Round Decomposable Local Tournaments

open access: yesDiscussiones Mathematicae Graph Theory, 2021
Thomassen, [Edge-disjoint Hamiltonian paths and cycles in tournaments, J. Combin. Theory Ser. B 28 (1980) 142–163] proved that every strong tournament has a pair of arc-disjoint Hamiltonian paths with distinct initial vertices and distinct terminal ...
Meng Wei
doaj   +1 more source

Limit cycles of planar piecewise linear Hamiltonian differential systems with two or three zones

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
In this paper, we study the existence of limit cycles in continuous and discontinuous planar piecewise linear Hamiltonian differential system with two or three zones separated by straight lines and such that the linear systems that define the piecewise ...
Claudio Pessoa, Ronisio Ribeiro
doaj   +1 more source

Proper Hamiltonian Cycles in Edge-Colored Multigraphs [PDF]

open access: yes, 2017
A $c$-edge-colored multigraph has each edge colored with one of the $c$ available colors and no two parallel edges have the same color. A proper Hamiltonian cycle is a cycle containing all the vertices of the multigraph such that no two adjacent edges ...
Borozan, Valentin   +4 more
core   +5 more sources

Second Hamiltonian Cycles in Claw-Free Graphs

open access: yesTheory and Applications of Graphs, 2015
Sheehan conjectured in 1975 that every Hamiltonian regular simple graph of even degree at least four contains a second Hamiltonian cycle. We prove that most claw-free Hamiltonian graphs with minimum degree at least 3 have a second Hamiltonian cycle and ...
Hossein Esfandiari   +3 more
doaj   +1 more source

Tverberg’s Theorem, Disks, and Hamiltonian Cycles [PDF]

open access: yesAnnals of Combinatorics, 2021
8 pages, 3 ...
Pablo Soberón, Yaqian Tang
openaire   +3 more sources

Orientations of hamiltonian cycles in large digraphs [PDF]

open access: yes, 1986
We prove that, with some exceptions, every digraph with n ≥ 9 vertices and at least (n - 1) (n - 2) + 2 arcs contains all orientations of a Hamiltonian ...
Adam Pawel Wojda   +3 more
core   +2 more sources

Hamiltonian Cycles in T-Graphs [PDF]

open access: yesDiscrete & Computational Geometry, 2000
The vertices and polygonal edges of the planar Archimedean tiling \(3^6\) of the plane is called the triangular tiling graph (TTG). A subgraph \(G\) of TTG is linearly convex if, for every line \(L\) which contains an edge of TTG, the set \(L \cap G\) is a (possibly degenerated or empty) line segment.
Reay, J. R., Zamfirescu, T.
openaire   +2 more sources

Extending Complex Conjugate Control to Nonlinear Wave Energy Converters

open access: yesJournal of Marine Science and Engineering, 2020
This paper extends the concept of Complex Conjugate Control (CCC) of linear wave energy converters (WECs) to nonlinear WECs by designing optimal limit cycles with Hamiltonian Surface Shaping and Power Flow Control (HSSPFC).
David G. Wilson   +4 more
doaj   +1 more source

Limit cycles of discontinuous piecewise linear differential systems formed by centers or Hamiltonian without equilibria separated by irreducible cubics

open access: yesMoroccan Journal of Pure and Applied Analysis, 2021
The main goal of this paper is to provide the maximum number of crossing limit cycles of two different families of discontinuous piecewise linear differential systems.
Damene Loubna, Benterki Rebiha
doaj   +1 more source

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