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The Kramers problem for quantum fermi-gases with specular - diffuse boundary conditions of the kinetic theory is considered. On an example of Kramers problem the new generalised method of a source of the decision of the boundary problems…

数学物理 · 物理学 2012-02-14 P. V. Ivanisenko , A. V. Latyshev

The Kramers problem for quantum Bose-gases with specular-diffuse boundary conditions of the kinetic theory is considered. On an example of Kramers' problem the new generalized method of a source of the decision of the boundary problems from…

数学物理 · 物理学 2012-12-07 E. A. Bedrikova , A. V. Latyshev

The second Stokes problem with specular - diffusive boundary conditions of the kinetic theory is considered. The new method of the decision of the boundary problems of the kinetic theory is applied. The method allows to receive the decision…

数学物理 · 物理学 2015-06-03 V. A. Akimova , A. V. Latyshev , A. A. Yushkanov

Half-space boundary Kramers' problem about isothermal sliding of moderate dense gas with accomodation boundary conditions along a flat firm surface is solving. The new method of the solution of boundary problems of the kinetic theory is…

数学物理 · 物理学 2014-12-31 A. V. Latyshev , A. D. Kurilov

We consider two classes of linear kinetic equations: with constant collision frequency and constant mean free path of gas molecules (i.e., frequency of molecular collisions, proportional to the modulus molecular velocity). Based homogeneous…

数学物理 · 物理学 2014-07-29 A. V. Latyshev , A. D. Kurilov

In the present work the classical problem of the kinetic theory of gases (the Smoluchowsky' problem about temperature jump in rarefied gas) is considered. The rarefied gas fills half-space over a flat firm surface. logarithmic gradient of…

数学物理 · 物理学 2014-11-05 A. V. Latyshev

The classical Kramers problem of the kinetic theory is solved. The Kramers problem about isothermal sliding for quantum Fermi gases is considered. Quantum gases with the velocity - dependent collision frequency are considered. Specular -…

数学物理 · 物理学 2015-03-19 A. Yu. Kvashnin , A. V. Latyshev , A. A. Yushkanov

The classical Kramers problem of the kinetic theory is analytically solved. The Kramers problem about isothermal sliding for quantum Fermi gases is considered. Quantum gases with the velocity-dependent collision frequency are considered.…

数学物理 · 物理学 2012-01-05 A. Yu. Kvashnin , A. V. Latyshev , A. A. Yushkanov

The time-fractional diffusion equation is considered, where the time derivative is either of Caputo or Riemann-Liouville type. The solution of a general initial-boundary value problem with time-dependent boundary conditions over bounded and…

偏微分方程分析 · 数学 2023-01-04 M. Rodrigo

Derivation of the lattice Boltzmann method from the continuous kinetic theory [X. He and L. S. Luo, {\it Phys. Rev. E} {\bf 55}, R6333 (1997); X. Shan and X. He, {\it Phys. Rev. Lett.} {\bf 80}, 65 (1998)] is extended in order to obtain…

元胞自动机与格子气 · 物理学 2009-11-07 Santosh Ansumali , Iliya V. Karlin

A variety of boundary value problems in linear transport theory are expressed as a diffusion equation of the two-way, or forward-backward, type. In such problems boundary data are specified only on part of the boundary, which introduces…

数学物理 · 物理学 2019-02-18 Caleb G. Wagner , Richard Beals

A finite difference numerical method is investigated for fractional order diffusion problems in one space dimension. For this, a mathematical model is developed to incorporate homogeneous Dirichlet and Neumann type boundary conditions. The…

数值分析 · 数学 2014-11-07 Béla J. Szekeres , Ferenc Izsák

We consider a one-dimensional free boundary problem governed by a nonlinear diffusion - convection equation with a Neumann condition at fixed face $x=0$, which is variable in time and a like Stefan convective condition on the free boundary.…

偏微分方程分析 · 数学 2024-10-07 Adriana C. Briozzo

We obtain the existence, uniqueness and regularity results for solutions to kinetic Fokker-Planck equations with bounded measurable coefficients in the presence of boundary conditions, including the inflow, diffuse reflection and specular…

偏微分方程分析 · 数学 2025-02-25 Yuzhe Zhu

Nonstationary and nonequilibrium processes are considered on the basis of an Enskog-Landau kinetic equation using a boundary conditions method. A nonstationary solution of this equation is found in the pair collision approximation. This…

等离子体物理 · 物理学 2007-05-23 A. E. Kobryn , I. P. Omelyan , M. V. Tokarchuk

We consider the inverse problem of determining different type of information about a diffusion process, described by ordinary or fractional diffusion equations stated on a bounded domain, like the density of the medium or the velocity field…

偏微分方程分析 · 数学 2019-07-05 Yavar Kian , Zhiyuan Li , Yikan Liu , Masahiro Yamamoto

We develop the kinetic theory of the flux-carrying Brownian motion recently introduced in the context of open quantum systems. This model constitutes an effective description of two-dimensional dissipative particles violating both…

统计力学 · 物理学 2022-07-27 Antonio A. Valido

We establish the global existence of weak solutions to a nonlinear kinetic Fokker--Planck equation with degenerate diffusion, under either inflow or partial absorption-reflection boundary conditions. The novelty of our approach lies in…

偏微分方程分析 · 数学 2025-10-09 Young-Pil Choi , Sihyun Song

We extend to multi-dimensions the work of [1], where new fully explicit kinetic methods were built for the approximation of linear and non-linear convection-diffusion problems. The fundamental principles from the earlier work are retained:…

数值分析 · 数学 2023-12-29 Gauthier Wissocq , Rémi Abgrall

The Ensemble Kalman Filter method can be used as an iterative numerical scheme for parameter identification or nonlinear filtering problems. We study the limit of infinitely large ensemble size and derive the corresponding mean-field limit…

数值分析 · 数学 2019-03-20 Michael Herty , Giuseppe Visconti
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