Results 1 to 10 of about 36,829 (168)

A partial Hamiltonian approach for current value Hamiltonian systems [PDF]

open access: yesCommunications in Nonlinear Science and Numerical Simulation, 2014
We develop a partial Hamiltonian framework to obtain reductions and closed-form solutions via first integrals of current value Hamiltonian systems of ordinary differential equations (ODEs). The approach is algorithmic and applies to many state and costate variables of the current value Hamiltonian.
Rehana Naz   +2 more
exaly   +4 more sources

A Theoretical Mechanism for the Action of SONG-Modulated Laser Light on Human Very Small Embryonic-Like (hVSEL) Stem Cells in Platelet Rich Plasma (PRP) [PDF]

open access: yesCellR4, 2021
It has previously been shown that human very small embryonic-like (hVSEL) stem cell proliferation occurs rapidly when hVSEL stem cells in platelet rich plasma (PRP) are exposed to Strachan Ovokaitys Node Generator (SONG)-modulated laser light.
J. Brindley, P. Hollands, T. Ovokaitys
doaj   +1 more source

Analytical results for phase bunching in the pendulum model of wave-particle interactions

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Radiation belt electrons are strongly affected by resonant interactions with cyclotron-resonant waves. In the case of a particle passing through resonance with a single, coherent wave, a Hamiltonian formulation is advantageous.
Jay M. Albert    +5 more
doaj   +1 more source

Effective Hamiltonians and Counterterms for Hamiltonian Truncation

open access: yesJournal of High Energy Physics, 2023
Abstract We outline a procedure for applying Hamiltonian Truncation to Quantum Field Theories (QFTs) that have UV divergences. To do this, we derive a novel representation of an Effective Hamiltonian which makes manifest some of its important properties (e.g.
Miró, Joan, Ingoldby, James
openaire   +3 more sources

Dynamic properties of the attachment oscillator arising in the nanophysics

open access: yesOpen Physics, 2023
The attachment oscillator, which plays an important role in the nanophysics such as nano/microelectromechanical systems, molecular devices, and nanofibers, is studied in this work.
Wang Kang-Jia, Si Jing
doaj   +1 more source

Real Hamiltonian forms of Hamiltonian systems [PDF]

open access: yesThe European Physical Journal B, 2004
We introduce the notion of a real form of a Hamiltonian dynamical system in analogy with the notion of real forms for simple Lie algebras. This is done by restricting the complexified initial dynamical system to the fixed point set of a given involution. The resulting subspace is isomorphic (but not symplectomorphic) to the initial phase space. Thus to
G. MARMO   +3 more
openaire   +5 more sources

Delay Differential Model for Tumour-Immune System With Chemo-therapy and Optimal Control [PDF]

open access: yesITM Web of Conferences, 2020
In this paper, we present a mathematical model of tumour-immune interactions in presence of chemotherapy treatment. The model is governed by a system of delay differential equations with optimal control variables.
Rihan Fathalla A., Rihan Bassel F.
doaj   +1 more source

The scaling Hamiltonian

open access: yesJournal of Operator Theory, 2021
We reconcile, at the semi-classical level, the original spectral realization of zeros of the Riemann zeta function as an ``absorption'' picture using the ad\`ele class space, with the ``emission'' semi-classical computations of Berry and Keating. We then use the quantized calculus to analyse the recent attempt of X.-J.~Li at proving Weil's positivity ...
Connes, Alain, Consani, Caterina
openaire   +2 more sources

Effective Hamiltonians and Averaging¶for Hamiltonian Dynamics II [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Evans, L. C., Gomes, D.
openaire   +3 more sources

Distribution of energy in propagation for ocean extreme wave generation in hydrodynamics laboratory [PDF]

open access: yesGlobal Journal of Environmental Science and Management, 2021
BACKGROUND AND OBJECTIVES: The hydrodynamic uncertainty of the ocean is the reason for testing marine structures as an initial consideration. This uncertainty has an impact on the natural structure of the topography as well as marine habitats.
D. Fadhiliani   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy