Results 21 to 30 of about 8,993,262 (259)

On the integrable deformations of a system related to the motion of two vortices in an ideal incompressible fluid [PDF]

open access: yesITM Web of Conferences, 2019
Altering the first integrals of an integrable system integrable deformations of the given system are obtained. These integrable deformations are also integrable systems, and they generalize the initial system.
Lăzureanu Cristian   +2 more
doaj   +1 more source

A nonzero solution for bounded selfadjoint operator equations and homoclinic orbits of Hamiltonian systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
We obtain an existence theorem of nonzero solution for a class of bounded selfadjoint operator equations. The main result contains as a special case the existence result of a nontrivial homoclinic orbit of a class of Hamiltonian systems by Coti Zelati ...
Mingliang Song, Runzhen Li
doaj   +1 more source

Construction of discrete-time model for port-controlled Hamiltonian systems with applications [PDF]

open access: yes, 2006
The issues of constructing a discrete-time model for Hamiltonian systems are in general different from those for dissipative systems. We propose an algorithm for constructing an approximate discrete-time model, which guarantees Hamiltonian conservation ...
Astolfi, A.,   +4 more
core   +1 more source

Some notes on port-Hamiltonian systems on Banach spaces [PDF]

open access: yes, 2021
We consider port-Hamiltonian systems from a functional analytic perspective. Dirac structures and Hamiltonians on Banach spaces are introduced, and an energy balance is proven.
Reis, Timo
core   +1 more source

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

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

Integrating Hamiltonian systems defined on the Lie groups SO(4) and SO(1,3) [PDF]

open access: yes, 2007
In this paper we study constrained optimal control problems on semi-simple Lie groups. These constrained optimal control problems include Riemannian, sub-Riemannian, elastic and mechanical problems. We begin by lifting these problems, through the Maximum
Biggs, James, Holderbaum, William
core   +3 more sources

Discrete exterior geometry approach to structure-preserving discretization of distributed-parameter port-Hamiltonian systems [PDF]

open access: yes, 2011
This paper addresses the issue of structure-preserving discretization of open distributed-parameter systems with Hamiltonian dynamics. Employing the formalism of discrete exterior calculus, we introduce a simplicial Dirac structure as a discrete analogue
Seslija, Marko,   +11 more
core   +3 more sources

Equivariant singularity theory with distinguished parameters: Two case studies of resonant Hamiltonian systems [PDF]

open access: yes, 1998
We consider Hamiltonian systems near equilibrium that can be (formally) reduced to one degree of freedom. Spatio-temporal symmetries play a key role. The planar reduction is studied by equivariant singularity theory with distinguished parameters.
Vegter, G   +15 more
core   +1 more source

Energy-Storage Balanced Reduction of Port-Hamiltonian Systems [PDF]

open access: yes, 2003
Supported by the framework of dissipativity theory, a procedure based on physical energy to balance and reduce port-Hamiltonian systems with collocated inputs and outputs is presented.
Fujimoto, Kenji   +9 more
core   +2 more sources

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