Výsledky vyhledávání - "Araki, Keisuke"

Report

Differential-geometrical approach to the dynamics of dissipationless incompressible Hall magnetohydrodynamics: II. Geodesic formulation and Riemannian curvature analysis of hydrodynamic and magnetohydrodynamic stabilities

Autor: Araki, Keisuke

Publikováno v: J. Phys. A: Math. Theor. 50 235501 (2017)

In this study, the dynamics of a dissipationless incompressible Hall magnetohydrodynamic (HMHD) medium are formulated as geodesics on a direct product of two volume-preserving diffeomorphism groups. Formulations are given for the geodesic and Jacobi

Externí odkaz: http://arxiv.org/abs/1608.05154

Zobrazit plný text záznamu

Report

Particle-relabeling symmetry, generalized vorticity, and normal-mode expansion of ideal incompressible fluids and plasmas in three-dimensional space

Autor: Araki, Keisuke

The Lagrangian mechanical consideration of the dynamics of ideal incompressible hydrodynamic, magnetohydrodynamic, and Hall magnetohydrodynamic media, which are formulated as dynamical systems in appropriate Lie groups equipped with Riemannian metric

Externí odkaz: http://arxiv.org/abs/1601.05477

Zobrazit plný text záznamu

Report

Helicity-based, particle-relabeling operator and normal mode expansion of the dissipationless incompressible Hall magnetohydrodynamics

Autor: Araki, Keisuke

Publikováno v: Phys. Rev. E 92, 063106 (2015)

The dynamics of an incompressible, dissipationless Hall magnetohydrodynamic medium are investigated from Lagrangian mechanical viewpoint. The hybrid and magnetic helicities are shown to emerge, respectively, from the application of the particle relab

Externí odkaz: http://arxiv.org/abs/1506.04367

Zobrazit plný text záznamu

Akademický článek

Regioselective reaction of fluorinated aryllithium reagents and carbon disulfide in cyclopentyl methyl ether: Efficient synthesis of dithioesters and liquid crystal compounds having a difluoromethyleneoxy moiety

Autor: Maebayashi, Haruki, Araki, Keisuke, Fuchigami, Tsugumichi, Gotoh, Yasuyuki, Inoue, Munenori ^*

Publikováno v: In Journal of Fluorine Chemistry June 2020 234

Zobrazit plný text záznamu

Report

Differential-geometrical approach to the dynamics of dissipationless incompressible Hall magnetohydrodynamics I: Lagrangian mechanics on semidirect product of two volume preserving diffeomorphisms and conservation laws

Autor: Araki, Keisuke

Publikováno v: J. Phys. A: Math. Theor. 48 (2015) 175501

The dynamics of a dissipationless incompressible Hall magnetohydrodynamic (HMHD) medium is formulated using Lagrangian mechanics on a semidirect product of two volume preserving diffeomorphism groups. In the case of $\mathbb{T}^3$ or $E^3$, the gener

Externí odkaz: http://arxiv.org/abs/1411.2064

Zobrazit plný text záznamu