Formal stability in Hamiltonian fluid models for plasmas
E Tassi - Journal of Physics A: Mathematical and Theoretical, 2022 - iopscience.iop.org
We review the progress made, during the last decade, on the analysis of formal stability for
Hamiltonian fluid models for plasmas, carried out by means of the energy-Casimir (EC) …
Hamiltonian fluid models for plasmas, carried out by means of the energy-Casimir (EC) …
Dissipative brackets for the Fokker–Planck equation in Hamiltonian systems and characterization of metriplectic manifolds
N Sato - Physica D: Nonlinear Phenomena, 2020 - Elsevier
It is shown that the Fokker–Planck equation describing diffusion processes in noncanonical
Hamiltonian systems exhibits a metriplectic structure, ie an algebraic bracket formalism that …
Hamiltonian systems exhibits a metriplectic structure, ie an algebraic bracket formalism that …
[HTML][HTML] An Evans function for the linearised 2D Euler equations using Hill's determinant
HR Dullin, R Marangell - Physica D: Nonlinear Phenomena, 2024 - Elsevier
We study the point spectrum of the linearisation of Euler's equation for the ideal fluid on the
torus about a shear flow. By separation of variables the problem is reduced to the spectral …
torus about a shear flow. By separation of variables the problem is reduced to the spectral …
Statistical mechanics with non-integrable topological constraints: Self-organization in knotted phase space
N Sato - Journal of Mathematical Physics, 2020 - pubs.aip.org
The object of this study is the statistical mechanics of dynamical systems lacking a
Hamiltonian structure due to the presence of non-integrable topological constraints that limit …
Hamiltonian structure due to the presence of non-integrable topological constraints that limit …
Stability Theory of the 3-Dimensional Euler Equations
HR Dullin, J Worthington - SIAM Journal on Applied Mathematics, 2019 - SIAM
The Euler equations on a three-dimensional periodic domain have a family of shear flow
steady states. We derive a formulation of the dynamics of the vorticity Fourier modes on a …
steady states. We derive a formulation of the dynamics of the vorticity Fourier modes on a …