Discovering conservation laws from data for control

E Kaiser, JN Kutz, SL Brunton - 2018 IEEE Conference on …, 2018 - ieeexplore.ieee.org
Conserved quantities, ie constants of motion, are critical for characterizing many dynamical
systems in science and engineering. These quantities are related to underlying symmetries …

Lie group statistics and Lie group machine learning based on Souriau Lie groups thermodynamics & Koszul-Souriau-Fisher metric: New entropy definition as …

F Barbaresco - Entropy, 2020 - mdpi.com
In 1969, Jean-Marie Souriau introduced a “Lie Groups Thermodynamics” in Statistical
Mechanics in the framework of Geometric Mechanics. This Souriau's model considers the …

Hamiltonian and action principle formulations of plasma physics

PJ Morrison - Physics of plasmas, 2005 - pubs.aip.org
Hamiltonian and action principle formulations of the basic equations of plasma physics are
reviewed. Various types of Lagrangian and Poisson bracket formulations for kinetic and fluid …

Carriers of Sargassum and mechanism for coastal inundation in the Caribbean Sea

F Andrade-Canto, FJ Beron-Vera, GJ Goni… - Physics of …, 2022 - pubs.aip.org
We identify effective carriers of Sargassum in the Caribbean Sea and describe a mechanism
for coastal choking. Revealed from satellite altimetry, the carriers of Sargassum are …

Inclusive curvaturelike framework for describing dissipation: Metriplectic 4-bracket dynamics

PJ Morrison, MH Updike - Physical Review E, 2024 - APS
An inclusive framework for joined Hamiltonian and dissipative dynamical systems that are
thermodynamically consistent, ie, preserve energy and produce entropy, is given. The …

Hamiltonian closures in fluid models for plasmas

E Tassi - The European Physical Journal D, 2017 - Springer
This article reviews recent activity on the Hamiltonian formulation of fluid models for plasmas
in the non-dissipative limit, with emphasis on the relations between the fluid closures …

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) …

Noise and dissipation on coadjoint orbits

A Arnaudon, AL De Castro, DD Holm - Journal of nonlinear science, 2018 - Springer
We derive and study stochastic dissipative dynamics on coadjoint orbits by incorporating
noise and dissipation into mechanical systems arising from the theory of reduction by …

[HTML][HTML] Action principles for extended magnetohydrodynamic models

I Keramidas Charidakos, M Lingam, PJ Morrison… - Physics of …, 2014 - pubs.aip.org
The general, non-dissipative, two-fluid model in plasma physics is Hamiltonian, but this
property is sometimes lost or obscured in the process of deriving simplified (or reduced) two …

Hamiltonian formulation and analysis of a collisionless fluid reconnection model

E Tassi, PJ Morrison, FL Waelbroeck… - Plasma Physics and …, 2008 - iopscience.iop.org
The Hamiltonian formulation of a plasma four-field fluid model that describes collisionless
reconnection is presented. The formulation is noncanonical with a corresponding Lie …