Results 31 to 40 of about 73,120 (246)

The evolution to equilibrium of solutions to nonlinear Fokker-Planck equation [PDF]

open access: yesIndiana University Mathematics Journal, 2019
One proves the $H$-theorem for mild solutions to a nondegenerate, nonlinear Fokker-Planck equation $$ u_t-\Delta\beta(u)+\mathrm{ div}(D(x)b(u)u)=0, \ t\ge0, \ x\in\mathbb{R}^d,\hspace{1cm} (1)$$ and under appropriate hypotheses on $\beta,$ $D$ and $b ...
V. Barbu, M. Rockner
semanticscholar   +1 more source

Invariant Analysis, Analytical Solutions, and Conservation Laws for Two-Dimensional Time Fractional Fokker-Planck Equation

open access: yesJournal of Function Spaces, 2021
The main purpose of this paper is to apply the Lie symmetry analysis method for the two-dimensional time fractional Fokker-Planck (FP) equation in the sense of Riemann–Liouville fractional derivative.
Nisrine Maarouf, Khalid Hilal
doaj   +1 more source

The kinetic Fokker-Planck equation with mean field interaction [PDF]

open access: yesJournal des Mathématiques Pures et Appliquées, 2019
We study the long time behaviour of the kinetic Fokker-Planck equation with mean field interaction, whose limit is often called Vlasov-Fkker-Planck equation.
A. Guillin   +3 more
semanticscholar   +1 more source

Numerical solution for the time-fractional Fokker–Planck equation via shifted Chebyshev polynomials of the fourth kind

open access: yesAdvances in Difference Equations, 2020
This paper provides a numerical approach for solving the time-fractional Fokker–Planck equation (FFPE). The authors use the shifted Chebyshev collocation method and the finite difference method (FDM) to present the fractional Fokker–Planck equation into ...
Haile Habenom, D. L. Suthar
doaj   +1 more source

Radiative Transfer Limits of Two-Frequency Wigner Distribution for Random Parabolic Waves [PDF]

open access: yes, 2006
The present note establishes the self-averaging, radiative transfer limit for the two-frequency Wigner distribution for classical waves in random media. Depending on the ratio of the wavelength to the correlation length the limiting equation is either a ...
Albert C. Fannjiang   +11 more
core   +8 more sources

Efficient statistically accurate algorithms for the Fokker-Planck equation in large dimensions [PDF]

open access: yesJournal of Computational Physics, 2017
Solving the Fokker–Planck equation for high-dimensional complex turbulent dynamical systems is an important and practical issue. However, most traditional methods suffer from the curse of dimensionality and have difficulties in capturing the fat tailed ...
N. Chen, A. Majda
semanticscholar   +1 more source

Interval Wavelet Numerical Method on Fokker-Planck Equations for Nonlinear Random System

open access: yesAdvances in Mathematical Physics, 2013
The Fokker-Planck-Kolmogorov (FPK) equation governs the probability density function (p.d.f.) of the dynamic response of a particular class of linear or nonlinear system to random excitation.
Li-wei Liu
doaj   +1 more source

Entropy Production Associated with Aggregation into Granules in a Subdiffusive Environment

open access: yesEntropy, 2018
We study the entropy production that is associated with the growing or shrinking of a small granule in, for instance, a colloidal suspension or in an aggregating polymer chain. A granule will fluctuate in size when the energy of binding is comparable to
Piotr Weber   +3 more
doaj   +1 more source

Master equation approach to the conjugate pairing rule of Lyapunov spectra for many-particle thermostatted systems [PDF]

open access: yes, 2002
The master equation approach to Lyapunov spectra for many-particle systems is applied to non-equilibrium thermostatted systems to discuss the conjugate pairing rule. We consider iso-kinetic thermostatted systems with a shear flow sustained by an external
C. Wagner   +43 more
core   +1 more source

Mean-field approximation of counting processes from a differential equation perspective

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
Deterministic limit of a class of continuous time Markov chains is considered based purely on differential equation techniques. Starting from the linear system of master equations, ordinary differential equations for the moments and a partial ...
Dávid Kunszenti-Kovács, Péter Simon
doaj   +1 more source

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