Results 51 to 60 of about 7,283,719 (303)

On a Recently Introduced Fifth-Order Bi-Hamiltonian Equation and Trivially Related Hamiltonian Operators

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
We show that a recently introduced fifth-order bi-Hamiltonian equation with a differentially constrained arbitrary function by A. de Sole, V.G. Kac and M. Wakimoto is not a new one but a higher symmetry of a third-order equation.
Daryoush Talati, Refik Turhan
doaj   +1 more source

Compilation by stochastic Hamiltonian sparsification [PDF]

open access: yesQuantum, 2020
Simulation of quantum chemistry is expected to be a principal application of quantum computing. In quantum simulation, a complicated Hamiltonian describing the dynamics of a quantum system is decomposed into its constituent terms, where the effect of ...
Yingkai Ouyang   +2 more
doaj   +1 more source

Jordan manifolds and dispersionless KdV equations [PDF]

open access: yes, 2000
Multicomponent KdV-systems are defined in terms of a set of structure constants and, as shown by Svinolupov, if these define a Jordan algebra the corresponding equations may be said to be integrable, at least in the sense of having higher-order ...
I. A. B. Strachan   +3 more
core   +1 more source

Hamiltonian structure of Hořava gravity

open access: yesPhysical Review D, 2011
8 pages, no figures. v2: added references, corrected minor typographical errors.
Donnelly, William, Jacobson, Ted
openaire   +3 more sources

Nearly-Hamiltonian Structure for Water Waves with constant vorticity [PDF]

open access: yes, 2008
We show that the governing equations for two-dimensional gravity water waves with constant non-zero vorticity have a nearly-Hamiltonian structure, which becomes Hamiltonian for steady ...
Prodanov, Emil   +4 more
core   +1 more source

The Lie Algebra Structure of Degenerate Hamiltonian and Bi-Hamiltonian Systems [PDF]

open access: yesProgress of Theoretical Physics, 1982
Summary: A generalization of Noether's theorem is obtained via an extension of the well-known Poisson bracket formalism. It is shown that degenerate closed forms yield Lie algebra homomorphisms between vector fields and covector fields. A similar result holds for operators working in the opposite way. Application of these Lie algebra homomorphisms to a
openaire   +3 more sources

Non-standard construction of Hamiltonian structures [PDF]

open access: yesJournal of Physics A: Mathematical and General, 1997
Examples of the construction of Hamiltonian structures for dynamical systems in field theory (including one reputedly non-Hamiltonian problem) without using Lagrangians, are presented. The recently developed method used requires the knowledge of one constant of the motion of the system under consideration and one solution of the symmetry equation.
Gomberoff, Andrés, Hojman, Sergio A.
openaire   +2 more sources

Effective Hamiltonian of Electroweak Penguin for Hadronic b Quark Decays [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2009
In this research we work with the effective Hamiltonian and the quark model. We investigate the decay rates of matter-antimatter of quark. We describe the effective Hamiltonian theory and apply this theory to the calculation of current-current ( ), QCD
H. Mehrban
doaj  

On the Structure of Classical Mechanics [PDF]

open access: yes, 2013
Jill North (North, 2009) has recently argued that Hamiltonian mechanics ascribes less structure to the world than Lagrangian mechanics does. I will argue that North's argument is not sound.
Thomas William Barrett   +1 more
core  

A List of 1 + 1 Dimensional Integrable Equations and Their Properties [PDF]

open access: yes, 2001
This paper contains a list of known integrable systems. It gives their recursion-, Hamiltonian-, symplectic- and cosymplectic operator, roots of their symmetries and their scaling ...
Jing Ping Wang, Wang, Jing Ping
core   +1 more source

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