Results 21 to 30 of about 1,982,910 (295)

Controlled Lagrangian and Hamiltonian Systems [PDF]

open access: yes, 2002
any control systems are mechanical systems. The unique feature of mechanical systems is the notion of energy, which gives much information on the stability of equilibria.
Chang, Dong Eui
core   +1 more source

Grafos hamiltonianos en el diseño de viajes

open access: yesModelling in Science Education and Learning, 2013
The existence and, if applicable, the location of paths with given properties is a topic in graph theory. One of these problems is to find routes through all points, only once, starting and ending at the same node.
Cristina Jordán Lluch   +1 more
doaj   +1 more source

A remark on Hamiltonian cycles

open access: yesJournal of Combinatorial Theory, Series B, 1981
AbstractEvery 2-connected graph G with δ ⩾ (v + κ)3 is hamiltonian where v denotes the order, δ the minimum degree and κ the point connectivity of G.
Roland Häggkvist, G. G. Nicoghossian
openaire   +1 more source

A Finite Dimensional Approximation of the shallow water Equations: The port-Hamiltonian Approach [PDF]

open access: yes, 2006
We look into the problem of approximating a distributed parameter port-Hamiltonian system which is represented by a non-constant Stokes-Dirac structure.
Ramkrishna Pasumarthy, R.P.   +8 more
core   +4 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

Hyper-Hamiltonian circulants

open access: yesElectronic Journal of Graph Theory and Applications, 2021
A Hamiltonian graph G = (V,E) is called hyper-Hamiltonian if G-v is Hamiltonian for any v ∈ V(G). G is called a circulant if its automorphism group contains a |V(G)|-cycle.
Zbigniew R. Bogdanowicz
doaj   +1 more source

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.
John R. Reay, Tudor Zamfirescu
openaire   +3 more sources

Matchings Extend to Hamiltonian Cycles in 5-Cube

open access: yesDiscussiones Mathematicae Graph Theory, 2018
Ruskey and Savage asked the following question: Does every matching in a hypercube Qn for n ≥ 2 extend to a Hamiltonian cycle of Qn? Fink confirmed that every perfect matching can be extended to a Hamiltonian cycle of Qn, thus solved Kreweras’ conjecture.
Wang Fan, Zhao Weisheng
doaj   +1 more source

On Factorization, Interconnection and Reduction of Collocated Port-Hamiltonian Systems [PDF]

open access: yes, 2004
Based on a geometric interpretation of nonlinear balanced reduction some implications of this approach are analyzed in the case of collocated port-Hamiltonian systems which have a certain balance in its structure.
Ricardo Lopezlena   +6 more
core   +1 more source

The H-force sets of the graphs satisfying the condition of Ore’s theorem

open access: yesOpen Mathematics, 2020
Let G be a Hamiltonian graph. A nonempty vertex set X⊆V(G)X\subseteq V(G) is called a Hamiltonian cycle enforcing set (in short, an H-force set) of G if every X-cycle of G (i.e., a cycle of G containing all vertices of X) is a Hamiltonian cycle.
Zhang Xinhong, Li Ruijuan
doaj   +1 more source

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