Results 31 to 40 of about 352,057 (287)

Hamiltonian structure of HoĊ™ava 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

Alternative structures and bi-Hamiltonian systems [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2002
In the study of bi-Hamiltonian systems (both classical and quantum) one starts with a given dynamics and looks for all alternative Hamiltonian descriptions it admits.In this paper we start with two compatible Hermitian structures (the quantum analog of two compatible classical Poisson brackets) and look for all the dynamical systems which turn out to ...
MARMO, GIUSEPPE   +3 more
openaire   +5 more sources

Hamiltonian vs Lagrangian Embedding of a Massive Spin-one Theory Involving 2-form Field [PDF]

open access: yes, 2001
We consider the Hamiltonian and Lagrangian embedding of a first-order, massive spin-one, gauge non-invariant theory involving anti-symmetric tensor field.
Banerjee R., E. HARIKUMAR, M. SIVAKUMAR
core   +2 more sources

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

On Hamiltonian structure of the spin Ruijsenaars-Schneider model [PDF]

open access: yes, 1997
The Hamiltonian structure of spin generalization of the rational Ruijsenaars-Schneider model is found by using the Hamiltonian reduction technique. It is shown that the model possesses the current algebra symmetry.
Arutyunov G E   +19 more
core   +2 more sources

Integrable Systems and Metrics of Constant Curvature

open access: yes, 2001
In this article we present a Lagrangian representation for evolutionary systems with a Hamiltonian structure determined by a differential-geometric Poisson bracket of the first order associated with metrics of constant curvature.
Dubrovin B.A.   +8 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   +2 more sources

Degenerate Frobenius manifolds and the bi-Hamiltonian structure of rational Lax equations

open access: yes, 1998
The bi-Hamiltonian structure of certain multi-component integrable systems, generalizations of the dispersionless Toda hierarchy, is studies for systems derived from a rational Lax function.
I. A. B. Strachan, Kupershmidt B. A.
core   +1 more source

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  

Robust Fault-Tolerant Control for Stochastic Port-Hamiltonian Systems against Actuator Faults

open access: yesMathematics, 2022
Exploiting the stochastic Hamiltonian structure, this paper investigates the robust fault-tolerant control (FTC) for stochastic port-Hamiltonian systems (SPHSs) with actuator faults.
Song Xu, Wei Wang, Sheng-Yuan Chen
doaj   +1 more source

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