Results 11 to 20 of about 10,847 (104)

Polynomial integrability of Hamiltonian systems with homogeneous potentials of degree −k

Physics Letters A, 2016
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Oliveira, Regilene, Valls, Claudia
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On the integrability of Hamiltonian systems with d degrees of freedom and homogenous polynomial potential of degree n [PDF]

Communications in Contemporary Mathematics, 2018
We consider Hamiltonian systems with [Formula: see text] degrees of freedom and a Hamiltonian of the form [Formula: see text] where [Formula: see text] is a homogenous polynomial of degree [Formula: see text]. We prove that such Hamiltonian systems with [Formula: see text] odd or [Formula: see text], have a Darboux first integral if and only if they ...
Llibre, Jaume, Valls, Clàudia
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Simple cosmological model with inflation and late times acceleration

European Physical Journal C: Particles and Fields, 2018
In the framework of polynomial Palatini cosmology, we investigate a simple cosmological homogeneous and isotropic model with matter in the Einstein frame.
Marek Szydłowski, Aleksander Stachowski
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Quasi-polynomial 3D electric and magnetic potentials homogeneous in Euler's sense

St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2017
Abstract Electric and magnetic fields homogeneous in Euler's sense are a useful instrument for designing the systems of charge particle optics. The similarity principle for the charged particle trajectories in these fields was applied by Golikov for the first time to create spectrographic charge particle optical systems in a more systematic and ...
Berdnikov, Alexander S., Averin, Igor A., Krasnova, Nadezhda K., Solovyev, Konstantin V.   +3 more
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Parâmetros genéticos para a produção de leite de controles individuais de vacas da raça Gir estimados com modelos de repetibilidade e regressão aleatória Estimation of genetic parameters for test day milk records of first lactation Gyr cows using repeatability and random regression animal models

Revista Brasileira de Zootecnia, 2005
Registros individuais perfazendo 8.183 controles de produção de leite (PLC) de 1.273 primeiras lactações de vacas da raça Gir de rebanhos supervisionados pela ABCZ no período 1994/2000 foram utilizados para se estimar componentes de variância e ...
Claudio Napolis Costa, Claudio Manoel Rodrigues de Melo, Carlos Henrique Crivelari Machado, Ary Ferreira de Freitas, Irineu Umberto Packer, Jaime de Araújo Cobuci   +5 more
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Programmable quantum simulation by dynamic Hamiltonian engineering

New Journal of Physics, 2014
Quantum simulation is a promising near term application for quantum information processors with the potential to solve computationally intractable problems using just a few dozen interacting qubits.
David Hayes, Steven T Flammia, Michael J Biercuk   +2 more
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Maier-Saupe nematogenic fluid: field theoretical approach

Condensed Matter Physics, 2011
We adopt a field theoretical approach to study the structure and thermodynamics of a homogeneous Maier-Saupe nematogenic fluid interacting with anisotropic Yukawa potential.
M. Holovko, D. di Caprio, I. Kravtsiv
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Tachyon Condensation in a Chromomagnetic Center Vortex Background

Universe
The chromomagnetic vacuum of SU(2) gluodynamics is considered in the background of a finite radius flux tube (center vortex) with a homogeneous field inside and a zero field outside. In this background, there are tachyonic modes.
Michael Bordag
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Simplification of the rolling contact-related lifetime calculation of profiled rail guides with a polynomial regression

Journal of Machine Engineering
The calculation of the lifespan of profile rail guides is an essential part in the design process of machines. Conventional lifespan models yield good results when calculating lifespan values under a homogeneous distribution of individual rolling contact
Danny Staroszyk, Müller Jens, Ihlenfeldt Steffen   +2 more
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Connectivity maintenance against link uncertainty and heterogeneity in adversarial networks

High-Confidence Computing
This paper delves into the challenge of maintaining connectivity in adversarial networks, focusing on the preservation of essential links to prevent the disintegration of network components under attack.
Jianzhi Tang, Luoyi Fu, Lei Zhou, Xinbing Wang, Chenghu Zhou   +4 more
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