Results 31 to 40 of about 267,752 (279)

Minimal period problem for second-order Hamiltonian systems with asymptotically linear nonlinearities

open access: yesOpen Mathematics, 2022
By applying the combination of discrete variational method and approximation, developed in a previous study [J. Kuang, W. Chen, and Z. Guo, Periodic solutions with prescribed minimal period for second-order even Hamiltonian systems, Commun.
Kuang Juhong, Chen Weiyi
doaj   +1 more source

Structural identifiability of linear Port Hamiltonian systems

open access: yesSystems & Control Letters, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Medianu, Silviu, Lefèvre, Laurent
openaire   +3 more sources

Entropy Production in Non-Linear, Thermally Driven Hamiltonian Systems [PDF]

open access: yes, 1998
We consider a finite chain of non-linear oscillators coupled at its ends to two infinite heat baths which are at different temperatures. Using our earlier results about the existence of a stationary state, we show rigorously that for arbitrary ...
Eckmann, Jean-Pierre   +2 more
core   +7 more sources

A necessary and sufficient condition for the stability of linear Hamiltonian systems with periodic coefficients

open access: yes, 2018
Linear Hamiltonian systems with time-dependent coefficients are of importance to nonlinear Hamiltonian systems, accelerator physics, plasma physics, and quantum physics. It is shown that the solution map of a linear Hamiltonian system with time-dependent
Qin, Hong
core   +1 more source

On the Derivation of Multisymplectic Variational Integrators for Hyperbolic PDEs Using Exponential Functions

open access: yesApplied Sciences, 2021
We investigated the derivation of numerical methods for solving partial differential equations, focusing on those that preserve physical properties of Hamiltonian systems.
Odysseas Kosmas   +2 more
doaj   +1 more source

A Lax Equation for the Non-Linear Sigma Model [PDF]

open access: yes, 2002
We propose a Lax equation for the non-linear sigma model which leads directly to the conserved local charges of the system. We show that the system has two infinite sets of such conserved charges following from the Lax equation, much like dispersionless ...
A Constandache   +36 more
core   +2 more sources

Complex planar Hamiltonian systems: Linearization and dynamics

open access: yesDiscrete & Continuous Dynamical Systems, 2021
By now, there are lots of known results on real planar Hamiltonian systems but very few known results on complex planar Hamiltonian systems. The study of the dynamics of complex planar Hamiltonian systems has not only its own theoretical importance but also many practical applications.
Shi, Hua, Zhang, Xiang, Zhang, Yuyan
openaire   +2 more sources

Structure Preserving Model Reduction of Parametric Hamiltonian Systems [PDF]

open access: yes, 2016
While reduced-order models (ROMs) have been popular for efficiently solving large systems of differential equations, the stability of reduced models over long-time integration is of present challenges.
Afkham, Babak Maboudi, Hesthaven, Jan S.
core   +2 more sources

Intrinsic Quantization of Linear Hamiltonian Systems

open access: yesEntropy
This article discusses the quantization of linear Hamiltonian systems, a historically rich but under explored line of research. The key idea is that a classical linear Hamiltonian system induces on its phase space a compatible complex structure and ...
Luigi Accardi, Carlo Pandiscia
doaj   +1 more source

New Interval Oscillation Criteria for Certain Linear Hamiltonian Systems

open access: yesDiscrete Dynamics in Nature and Society, 2013
Using a generalized Riccati transformation and the general integral means technique, some new interval oscillation criteria for the linear matrix Hamiltonian system U'=(A(t)-λ(t)I)U+B(t)V, V'=C(t)U+(μ(t)I-A*(t))V, t≥t0 are obtained.
Jing Shao, Fanwei Meng
doaj   +1 more source

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