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Related papers: Solutions to the Classical Liouville Equation

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The gauge-theoretical method introduced in our previous paper is applied to solve the axisymmetric and static Einstein-Maxwell equations. We obtain the solutions of the non-Weyl class, where the gravitational and electric or magnetic…

General Relativity and Quantum Cosmology · Physics 2025-12-24 Takahiro Azuma , Takao Koikawa

In the present paper we derive Liouville type results and existence of periodic solutions for $\chi^{(2)}$ type systems with non-homogeneous nonlinearities. Moreover, we prove both universal bounds as well as singularity and decay estimates…

Analysis of PDEs · Mathematics 2023-06-27 Aleks Jevnikar , Jun Wang , Wen Yang

In the contact-geometric formulation of classical thermodynamics distinction is made between the energy and entropy representation, which can be resolved by taking homogeneous coordinates for the intensive variables. This results in a…

Mathematical Physics · Physics 2021-09-22 Arjan van der Schaft

We are concerned with wave equations associated to some Liouville-type problems on compact surfaces, focusing on sinh-Gordon equation and general Toda systems. Our aim is on one side to develop the analysis for wave equations associated to…

Analysis of PDEs · Mathematics 2020-09-08 Weiwei Ao , Aleks Jevnikar , Wen Yang

The lack-of-fit statistical reduction, developed and formulated first by Bruce Turkington, is a general method taking Liouville equation for probability density (detailed level) and transforming it to reduced dynamics of projected…

Statistical Mechanics · Physics 2020-04-01 Michal Pavelka , Vaclav Klika , Miroslav Grmela

In this study we work on a novel Hamiltonian system which is Liouville integrable. In the integrable Hamiltonian model, conserved currents can be represented as Binomial polynomials in which each order corresponds to the integral of motion…

Exactly Solvable and Integrable Systems · Physics 2023-04-11 Mustafa Mullahasanoglu

We prove a Liouville-type theorem for semilinear parabolic systems of the form $${\partial_t u_i}-\Delta u_i =\sum_{j=1}^{m}\beta_{ij} u_i^ru_j^{r+1}, \quad i=1,2,...,m$$ in the whole space ${\mathbb R}^N\times {\mathbb R}$. Very recently,…

Analysis of PDEs · Mathematics 2015-07-28 Quoc Hung Phan , Philippe Souplet

Infinitesimal volumes stretch and contract as they coevolve with classical phase space trajectories according to linearized dynamics. Unless these tangent-space dynamics are modified, chaotic evolution causes the volume spanned by evolving…

Chaotic Dynamics · Physics 2026-04-13 Swetamber Das , Jason R. Green

We present a general approach for obtaining the generalized transport equations with fractional derivatives using the Liouville equation with fractional derivatives for a system of classical particles and the Zubarev non-equilibrium…

Statistical Mechanics · Physics 2023-08-30 P. Kostrobij , B. Markovych , I. Ryzha , M. Tokarchuk

The fundamental concept of phase space for particles moving in the four-dimensional spacetime is analyzed. Particle distribution density is defined as differential form, which degree may be different in various cases. It should be…

Classical Physics · Physics 2016-01-20 O. I. Drivotin

Previously developed ``stochastic representation of deterministic interactions`` enables exact treatment of an open system without leaving its native phase space (Hilbert space) due to peculiar stochastic extension of the Liouville (von…

Statistical Mechanics · Physics 2007-05-23 Yu. E. Kuzovlev

Description of time evolution of the relativistic unstable electromagnetic system consisting of Fermi-Dirac particle interacting with electromagnetic field, in the framework of the Liouville space extension of quantum mechanics is done. The…

Quantum Physics · Physics 2007-05-23 S. Eh. Shirmovsky

We formulate the thermofield dynamics for time-dependent systems by combining the Liouville-von Neumann equation, its invariant operators, and the basic notions of thermofield dynamics. The new formulation is applied to time-dependent…

Quantum Physics · Physics 2007-05-23 Sang Pyo Kim , F. C. Khanna

In the first part of this article, we complete the program announced in the preliminary note [8] by proving a conjecture presented in [9] that states the equivalence of contractibility and p_{1}-stability for generalized spaces of formal…

Analysis of PDEs · Mathematics 2012-05-01 Alessandro Carlotto

We present a theory of well-posedness and a priori estimates for bounded distributional (or very weak) solutions of $$\partial_tu-\mathfrak{L}^{\sigma,\mu}[\varphi(u)]=g(x,t)\quad\quad\text{in}\quad\quad \mathbb{R}^N\times(0,T),$$ where…

Analysis of PDEs · Mathematics 2017-10-16 Félix del Teso , Jørgen Endal , Espen R. Jakobsen

We explore whether quantum field theory can be understood as the statistical mechanics of a time-reversal-invariant stochastic generalization of Hamiltonian dynamics. The motivation for this project, started with this paper, is to assign…

Quantum Physics · Physics 2026-03-24 Simon Friederich , Mritunjay Tyagi

We introduce a curvature atlas for left-invariant metrics on SU(2), based on the inertial curvature field derived from the Euler-Poincare equations. We prove that the classical integrable cases of the heavy top--spherical, Lagrange,…

Exactly Solvable and Integrable Systems · Physics 2025-12-23 Evgeny A. Mityushov

Inspired by quantum gravity proposal, we construct a deformed phase space which supports the UV and IR cutoffs. We show that the Liouville theorem is satisfied in the deformed phase space which allows us to formulate the thermodynamics of…

General Relativity and Quantum Cosmology · Physics 2015-06-19 M. A. Gorji , K. Nozari , B. Vakili

We consider the relativistic generalization of the harmonic oscillator problem by addressing different questions regarding its classical aspects. We treat the problem using the formalism of Hamiltonian mechanics. A Lie algebraic technique…

Mathematical Physics · Physics 2012-09-14 D. Babusci , G. Dattoli , M. Quattromini , E. Sabia

Considerable research has led to ergodic isothermal dynamics which can replicate Gibbs' canonical distribution for simple ( small ) dynamical problems. Adding one or two thermostat forces to the Hamiltonian motion equations can give an…

Statistical Mechanics · Physics 2018-07-16 William Graham Hoover , Carol Griswold Hoover
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