Results 31 to 40 of about 37,694 (310)

A new hierarchy of integrable system of 1+2 dimensions: from Newton's law to generalized Hamiltonian system. Part II

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
The Hamiltonian equation provides us an alternate description of the basic physical laws of motion, which is used to be described by Newton's law.
Xuncheng Huang, Guizhang Tu
doaj   +1 more source

Combining finite element space-discretizations with symplectic time-marching schemes for linear Hamiltonian systems

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
We provide a short introduction to the devising of a special type of methods for numerically approximating the solution of Hamiltonian partial differential equations.
Bernardo Cockburn   +2 more
doaj   +1 more source

Symmetry and Resonance in Hamiltonian Systems [PDF]

open access: yesSIAM Journal on Applied Mathematics, 2001
The authors consider a two-degree-of-freedom Hamiltonian \[ H(p_1,q_1,p_2,q_2)= \textstyle{{1\over 2}} \omega_1(p^2_1+ q^2_1)+ \textstyle{{1\over 2}} \omega_2(p^2_2+ q^2_2)+ H_3+ H_4+\cdots, \] where \(H_k\) \((k\geq 3)\) are homogeneous polynomials of degree \(k\).
Tuwankotta, J.M., Verhulst, F.
openaire   +4 more sources

Existence of solutions for a class of second-order sublinear and linear Hamiltonian systems with impulsive effects

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2011
By using the saddle point theorem, some new existence theorems are obtained for second-order Hamiltonian systems with impulsive effects in the cases when the gradient of the nonlinearity grows sublinearly and grows linearly respectively.
Xiaofei He, Peng Chen
doaj   +1 more source

On First Integrals of Hamiltonian System with Holonomic Hamiltonian

open access: yes2022 IEEE 61st Conference on Decision and Control (CDC), 2022
In this study, the solution of the Hamilton-Jacobi equation (HJE) with holonomic Hamiltonian is investigated in terms of the first integrals of the corresponding Hamiltonian system. Holonomic functions are related to a specific type of partial differential equations called Pfaffian systems, whose solution space can be regarded as a finite-dimensional ...
openaire   +2 more sources

Port-Hamiltonian Systems on Graphs [PDF]

open access: yesSIAM Journal on Control and Optimization, 2013
In this paper we present a unifying geometric and compositional framework for modeling complex physical network dynamics as port-Hamiltonian systems on open graphs. Basic idea is to associate with the incidence matrix of the graph a Dirac structure relating the flow and effort variables associated to the edges, internal vertices, as well as boundary ...
Schaft, A. J., Maschke, B. M.
openaire   +3 more sources

QUANTUM BI-HAMILTONIAN SYSTEMS [PDF]

open access: yesInternational Journal of Modern Physics A, 2000
We define quantum bi-Hamiltonian systems, by analogy with the classical case, as derivations in operator algebras which are inner derivations with respect to two compatible associative structures. We find such structures by means of the associative version of Nijenhuis tensors. Explicit examples, e.g. for the harmonic oscillator, are given.
J.F. Carinena   +2 more
openaire   +4 more sources

Complex Dynamics of Some Hamiltonian Systems: Nonintegrability of Equations of Motion

open access: yesAdvances in Mathematical Physics, 2019
The main purpose of this paper is to study the complexity of some Hamiltonian systems from the view of nonintegrability, including the planar Hamiltonian with Nelson potential, double-well potential, and the perturbed elliptic oscillators Hamiltonian ...
Jingjia Qu
doaj   +1 more source

Particle Swarm Optimization of a Passivity-Based Controller for Dynamic Positioning of Ships

open access: yesApplied Sciences, 2020
Dynamic positioning (DP) control system is an essential module used in offshore ships for accurate maneuvering and maintaining of ship’s position and heading (fixed location or pre-determined track) by means of thruster forces being generated by ...
Mutaz Ryalat   +2 more
doaj   +1 more source

Homoclinic orbits for periodic second order Hamiltonian systems with superlinear terms

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
We obtain the existence of nontrivial homoclinic orbits for nonautonomous second order Hamiltonian systems by using critical point theory under some different superlinear conditions from those previously used in Hamiltonian systems.
Haiyan Lv, Guanwei Chen
doaj   +1 more source

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