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Fokker-Planck model

A Fokker-Planck model of the Boltzmann equation with correct Prandtl number for polyatomic gases

A Fokker-Planck model of the Boltzmann equation with correct Prandtl number for polyatomic gases

... the Fokker-Planck model of the Boltzmann equation to get a correct Prandtl number in the Compressible Navier-Stokes asymptotics for polyatomic ...Ellipsoidal-Statistical model is obtained from ...

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A Fokker-Planck model of the Boltzmann equation with correct Prandtl number

A Fokker-Planck model of the Boltzmann equation with correct Prandtl number

... Keywords: Fokker-Planck model, Ellipsoidal-Statistical model, H-theorem, Prandtl number 1 Introduction Numerical simulations of rarefied gas flows are fundamental tools to study the behavior ...

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Uniform semigroup spectral analysis of the discrete, fractional & classical Fokker-Planck equations

Uniform semigroup spectral analysis of the discrete, fractional & classical Fokker-Planck equations

... CLASSICAL FOKKER-PLANCK EQUATIONS ST´ EPHANE MISCHLER AND ISABELLE TRISTANI ...classical Fokker-Planck equations in some regime where the corresponding operators are ...classical ...

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A Fokker-Planck approach to the study of robustness in gene expression

A Fokker-Planck approach to the study of robustness in gene expression

... While Fokker-Planck equations are widely used models in mathematical biology [31], their use for the study of gene regulatory network is, up to our knowledge, scarce (see ...the Fokker-Planck ...

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An entropic scheme for an angular moment model for the classical Fokker-Planck-Landau equation of electrons

An entropic scheme for an angular moment model for the classical Fokker-Planck-Landau equation of electrons

... This model allows mainly to conserve fundamental properties such as the mass and energy conservation and the entropy ...this model is ill posed. Indeed what- ever the closure chosen, this model does ...

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An entropic scheme for an angular moment model for the classical Fokker-Planck equation of electrons

An entropic scheme for an angular moment model for the classical Fokker-Planck equation of electrons

... This model allows mainly to conserve fundamental properties such as the mass and energy conservation and the entropy ...this model is ill posed. Indeed what- ever the closure chosen, this model does ...

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Kolmogorov-Fokker-Planck operators in dimension two: heat kernel and curvature

Kolmogorov-Fokker-Planck operators in dimension two: heat kernel and curvature

... M f div µ X dµ, f ∈ C c ∞ (M ) for every smooth function f having compact support in M . The extension of results in the spirit of Theorem 1 to non-Riemannian situations, such as sub-Riemannian geometry or more in ...

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Anisotropic Boltzmann-Gibbs dynamics of strongly magnetized Vlasov-Fokker-Planck equations

Anisotropic Boltzmann-Gibbs dynamics of strongly magnetized Vlasov-Fokker-Planck equations

... Other collision operators. From an applicative point of view the main restriction to relax is probably the form of our collision operators Qpf q “ div v pvf `∇ v f q. On this topic we first observe that actually Theorem ...

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Maximal estimates for the Kramers-Fokker-Planck operator with electromagnetic field

Maximal estimates for the Kramers-Fokker-Planck operator with electromagnetic field

... The Fokker-Planck equation was introduced by Fokker and Planck at the beginning of the twentieth century, to describe the evolution of the density of particles under the Brownian ...the ...

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ON THE KRAMERS-FOKKER-PLANCK EQUATION WITH DECREASING POTENTIALS IN DIMENSION ONE

ON THE KRAMERS-FOKKER-PLANCK EQUATION WITH DECREASING POTENTIALS IN DIMENSION ONE

... WITH DECREASING POTENTIALS IN DIMENSION ONE RADEK NOVAK AND XUE PING WANG Abstract. For quickly decreasing potentials with one position variable, the first threshold zero is always a resonance of the ...

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mouvement brownien équation de fokker-planck

mouvement brownien équation de fokker-planck

... s´ eparation nette des ´ echelles de temps entre la vitesse de la particule brownienne et la force al´ eatoire, contrairement au cas du mod` ele de Langevin non retard´ e. 6. Quelques remarques sur les processus de ...

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Fokker-Planck equations with terminal condition and related McKean probabilistic representation

Fokker-Planck equations with terminal condition and related McKean probabilistic representation

... bounded (resp. is locally Lipschitz in space with linear growth) on [0, T [×R d . We state now existence and uniqueness results for equation (1.3) in different settings. 4.2 PDE with terminal condition and existence for ...

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Transient Fokker-Planck-Kolmogorov equation solved with smoothed particle hydrodynamics method

Transient Fokker-Planck-Kolmogorov equation solved with smoothed particle hydrodynamics method

... (38) with q the dimensionless coordinate of the SDOF system, ξ the structural damping ratio and ω 0 the natural circular frequency. The excitation is a white noise W (t) (E[W (t)W (t + τ )] = 2S 0 δ(τ )) modulated by a ...

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Transient Fokker-Planck equation with SPH method : Application in seismic design

Transient Fokker-Planck equation with SPH method : Application in seismic design

... Abstract. In reliability theory, the knowledge of the time evolution of the probability density function (pdf) of the response of a diffusive random system may be required. The time evolu- tion of this pdf is described ...

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Statistical deconvolution of the free Fokker-Planck equation at fixed time

Statistical deconvolution of the free Fokker-Planck equation at fixed time

... µ t = µ 0 ⊞ σ t , (1.3) as spectral measure, where the operation ⊞ is the free convolution and has been introduced by Voiculescu in [ 32 ]. It can be proved that the density p(t, ˙) of µ t solves ( 1.1 ). For the ...

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Exponential stability of slowly decaying solutions to the kinetic Fokker-Planck equation

Exponential stability of slowly decaying solutions to the kinetic Fokker-Planck equation

... the Fokker-Planck equations with various types of ...and Fokker-Planck equations in the spatially homogeneous and spatially periodic ...

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Fokker Planck kinetic modeling of suprathermal alpha-particles in a fusion plasma

Fokker Planck kinetic modeling of suprathermal alpha-particles in a fusion plasma

... Vlasov-Fokker Planck equation governing the evolution of the suprathermal component of the α distribution function f α S T in a dimensionless form, based on a specified unit system given in Table ...

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Fokker Planck kinetic modeling of suprathermal alpha-particles in a fusion plasma

Fokker Planck kinetic modeling of suprathermal alpha-particles in a fusion plasma

... evolution of the thermal component of the α-particle distribution function represented in Fig. 18. It shows how the thermal component builds up. 5.5. Ignition and burning wave propagation We compare the density, velocity ...

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Limite de diffusion de l'équation de Fokker-Planck avec un équilibre à  décroissance lente : modèles d'agrégation en dynamique de populations

Limite de diffusion de l'équation de Fokker-Planck avec un équilibre à décroissance lente : modèles d'agrégation en dynamique de populations

... for Fokker-Planck equation with heavy tail ...of Fokker-Planck in the special case where the equilibria decay towards zero at innity like a negative power ...chemotaxis model of ...

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Uniqueness for a class of stochastic Fokker-Planck and porous media equations

Uniqueness for a class of stochastic Fokker-Planck and porous media equations

... [5] P. Blanchard, M. R¨ockner, and F. Russo. Probabilistic representation for solu- tions of a porous media type equation. Ann. Probab., 38(5):1870–1900, 2010. [6] V.I. Bogachev, N.V. Krylov, M. R¨ockner, and ...

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