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We derive equations of motion for the dynamics of anisotropic particles directly from the dissipative Vlasov kinetic equations, with the dissipation given by the double bracket approach (Double Bracket Vlasov, or DBV). The moments of the…

Adaptation and Self-Organizing Systems · Physics 2010-04-26 Darryl D. Holm , Vakhtang Putkaradze , Cesare Tronci

Vlasov kinetic theory is the dynamics of a bunch of particles flowing according to symplectic Hamiltonian dynamics. More recently, this geometry has been extended to contact Hamiltonian dynamics. In this paper, we introduce geometric…

Differential Geometry · Mathematics 2023-08-22 Begüm Ateşli , Oğul Esen , Manuel de León , Cristina Sardón

We propose a conformal generalization of the reversible Vlasov equation of kinetic plasma dynamics, called conformal kinetic theory. In order to arrive at this formalism, we start with the conformal Hamiltonian dynamics of particles and…

Mathematical Physics · Physics 2024-11-21 Oğul Esen , Ayten Gezici , Miroslav Grmela , Hasan Gümral , Michal Pavelka , Serkan Sütlü

By using the moment algebra of the Vlasov kinetic equation, we characterize the integrable Bloch-Iserles system on symmetric matrices (arXiv:math-ph/0512093) as a geodesic flow on the Jacobi group. We analyze the corresponding Lie-Poisson…

Exactly Solvable and Integrable Systems · Physics 2012-11-08 François Gay-Balmaz , Cesare Tronci

The kinetic approach to the formation of the filaments in the large-scale matter distribution in the Universe is considered within the Vlasov formalism. The structures arise due to the self-consistent dynamics, along with the repulsive term…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-19 V. G. Gurzadyan , N. N. Fimin , V. M. Chechetkin

We establish the large-time behavior for the coupled kinetic-fluid equations. More precisely, we consider the Vlasov equation coupled to the compressible isentropic Navier-Stokes equations through a drag forcing term. For this system, the…

Analysis of PDEs · Mathematics 2016-08-03 Young-Pil Choi

A new constant of motion for helically symmetric equilibria in the vicinity of the magnetic axis is obtained in the framework of Vlasov theory. In view of this constant of motion the Vlasov theory is compared with drift kinetic and…

Plasma Physics · Physics 2015-06-12 H. Tasso , G. N. Throumoulopoulos

This article is concerned with the kinetic modeling, by means of the Vlasov equation, of charged particles under the influence of a strong external electromagnetic field, i.e. when epsilon^2, the dimensionless cyclotron period, tends to…

Mathematical Physics · Physics 2009-05-15 Pierre Degond , Sever Hirstoaga , Marie-Hélène Vignal

A new symplectic variational approach is developed for modeling dissipation in kinetic equations. This approach yields a double bracket structure in phase space which generates kinetic equations representing coadjoint motion under canonical…

Plasma Physics · Physics 2007-08-21 Darryl D. Holm , Vakhtang Putkaradze , Cesare Tronci

A kinetic model for the dynamics of collisionless spin neutral particles in a spacetime with torsion is proposed. The fundamental matter field is the kinetic density $f(x,u,s)$ of particles with four-velocity $u$ and four-spin $s$. The…

General Relativity and Quantum Cosmology · Physics 2025-02-26 Simone Calogero

The Vlasov equation for the collisionless evolution of the single-particle probability distribution function (PDF) is a well-known example of coadjoint motion. Remarkably, the property of coadjoint motion survives the process of taking…

Chaotic Dynamics · Physics 2007-05-23 John Gibbons , Darryl D. Holm , Cesare Tronci

Vlasov kinetic theory is extended by adopting an extra one particle distribution function as an additional state variable characterizing the micro-turbulence internal structure. The extended Vlasov equation keeps the reversibility, the…

Statistical Mechanics · Physics 2017-08-08 Miroslav Grmela , Michal Pavelka

The modification of the Vlasov equation, in its standard form describing a charged particle distribution in the six-dimensional phase space, is derived explicitly within a formal Hamiltonian approach for arbitrarily curved spacetime. The…

Plasma Physics · Physics 2015-05-19 I. Y. Dodin , N. J. Fisch

The open problem of derivation of the relativistic Vlasov equation for the systems of charged particles moving with the velocities up to the speed of light and creating the electromagnetic field in accordance with the full set of the…

Plasma Physics · Physics 2022-04-26 Pavel A. Andreev

The main purpose of this article is to provide a guide to theorems on global properties of solutions to the Einstein-Vlasov system. This system couples Einstein's equations to a kinetic matter model. Kinetic theory has been an important…

General Relativity and Quantum Cosmology · Physics 2016-10-19 Hakan Andreasson

A kinetic theory of classical particles serves as a unified basis for developing a geometric $3+1$ spacetime perspective on fluid dynamics capable of embracing both Minkowski and Galilei/Newton spacetimes. Parallel treatment of these cases…

High Energy Astrophysical Phenomena · Physics 2019-09-10 Christian Y. Cardall

An important physical model describing the dynamics of dilute weakly ionized plasmas in the collisional kinetic theory is the Vlasov-Poisson-Boltzmann system for which the plasma responds strongly to the self-consistent electrostatic force.…

Analysis of PDEs · Mathematics 2012-03-20 Renjun Duan , Tong Yang , Huijiang Zhao

The main purpose of this article is to guide the reader to theorems on global properties of solutions to the Einstein-Vlasov system. This system couples Einstein's equations to a kinetic matter model. Kinetic theory has been an important…

General Relativity and Quantum Cosmology · Physics 2016-10-19 Hakan Andreasson

Various integrable geodesic flows on Lie groups are shown to arise by taking moments of a geodesic Vlasov equation on the group of canonical transformations. This was already known for both the one- and two-component Camassa-Holm systems.…

Exactly Solvable and Integrable Systems · Physics 2009-07-23 Darryl D. Holm , Cesare Tronci

In this paper the two-dimensional Benney system describing long wave propagation of a finite depth fluid motion and the multi-dimensional Russo--Smereka kinetic equation describing a bubbly flow are considered. The Hamiltonian approach…

Exactly Solvable and Integrable Systems · Physics 2015-06-19 Maxim V. Pavlov
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