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In this paper, we discuss the Cauchy Problem for the compressible isentropic Euler-Boltzmann equations with vacuum in radiation hydrodynamics. Firstly, we establish the local existence of regular solutions by the fundamental methods in the…

数学物理 · 物理学 2014-10-08 Yachun Li , Shengguo Zhu

We present a general method of solving the Cauchy problem for multidimensional parabolic (diffusion type) equation with variable coefficients which depend on spatial variable but do not change over time. We assume the existence of the…

偏微分方程分析 · 数学 2019-05-17 Ivan D. Remizov

We consider the Cauchy problem of fractional pseudo-parabolic equation on the whole space $R^n,n\geq 1$. Here, the fractional order $\alpha$ is related to the diffusion-type source term behaving as the usual diffusion term on the high…

偏微分方程分析 · 数学 2017-03-28 Lingyu Jin , Lang Li , Shaomei Fang

We study the global existence of solutions to the Cauchy problem for the two-dimensional fully parabolic Keller--Segel system at the critical mass. It is known that global-in-time existence holds for initial data with critical mass under…

偏微分方程分析 · 数学 2026-03-04 Tatsuya Hosono

We shall be concerned with the Cauchy problem for quasilinear systems in three space dimensions of the form \label{i.1} \partial^2_tu^I-c^2_I\Delta u^I = C^{IJK}_{abc}\partial_c u^J\partial_a\partial_b u^K + B^{IJK}_{ab}\partial_a…

偏微分方程分析 · 数学 2007-05-23 Christopher D. Sogge

In a recent paper Calogero and Alcantara derived a Lorentz-invariant Fokker-Planck equation, which corresponds to the evolution of a particle distribution associated with relativistic Brownian Motion. We study the "one and one-half"…

偏微分方程分析 · 数学 2015-09-01 Stephen Pankavich , Nicholas Michalowski

We consider linear and non-linear Cauchy equations in the context of Sobolev spaces. In particular, we show the global existence of solutions to the Kirchhoff equation with initial data in the Sobolev spaces, a problem that has been open…

偏微分方程分析 · 数学 2022-09-07 Tokio Matsuyama , Lenny Neyt

In this paper we establish the global in time existence and uniqueness of solutions to the Boltzmann hierarchy, a hierarchy of equations instrumental for the rigorous derivation of the Boltzmann equation from many particles. Inspired by…

偏微分方程分析 · 数学 2024-02-02 Ioakeim Ampatzoglou , Joseph K. Miller , Nataša Pavlović , Maja Tasković

In this paper, we establish global strong solutions for arbitrarily large initial data to the 2D and 3D compressible Navier-Stokes-Korteweg system, also referred to as the quantum Navier-Stokes equations, originally derived by Dunn and…

偏微分方程分析 · 数学 2026-02-12 Xiangdi Huang , Yongteng Gu , Muxi Lei

In this paper we will apply the modified potential well method and variational method to the study of the long time behaviors of solutions to a class of parabolic equation of Kirchhoff type. Global existence and blow up in finite time of…

偏微分方程分析 · 数学 2017-03-28 Yuzhu Han , Qingwei Li

The Cauchy problem is revisited for the so-called relativistic Vlasov-Poisson system in the attractive case. Global existence and uniqueness of spherical classical solutions is proved under weaker assumptions than previously used. A new…

数学物理 · 物理学 2009-02-06 Michael K. -H. Kiessling , A. Shadi Tahvildar-Zadeh

We consider the solutions of the Cauchy problem for a dyadic model of Euler equations. We prove global existence and uniqueness of Leray-Hopf solutions in a rather large class K that implies in particular global existence and uniqueness in…

偏微分方程分析 · 数学 2009-10-28 David Barbato , Franco Flandoli , Francesco Morandin

This paper studies a space-inhomogeneous Boltzmann-Nordheim equation with pseudo-Maxwellian forces. Strong solutions are obtained for the Cauchy problem in a setting with large bounded L1 initial data. The main results are existence,…

数学物理 · 物理学 2016-11-23 Leif Arkeryd , Anne Nouri

We study the "one and one-half" dimensional Vlasov-Maxwell-Fokker-Planck system and obtain the first results concerning well-posedness of solutions. Specifically, we prove the global-in-time existence and uniqueness in the large of…

偏微分方程分析 · 数学 2017-01-31 Stephen Pankavich , Jack Schaeffer

We prove the existence and exponential decay of global in time strong solutions to the Boltzmann equation without any angular cut-off, i.e., for long-range interactions. We consider perturbations of the Maxwellian equilibrium states and…

偏微分方程分析 · 数学 2016-02-22 Philip T. Gressman , Robert M. Strain

This article is a guide to the literature on existence theorems for the Einstein equations which also draws attention to open problems in the field. The local in time Cauchy problem, which is relatively well understood, is treated first.…

广义相对论与量子宇宙学 · 物理学 2016-10-19 Alan D. Rendall

It is shown that in spite of a generally accepted concept, there exist nondiffeomorphic solutions to the Cauchy problem in nonempty spacetime, which implies the necessity for canonical complementary conditions. It is nonlocal quantum jumps…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Vladimir S. Mashkevich

In this paper, we mainly investigate the Cauchy problem for the periodic Phan-Thein-Tanner (PTT) model. This model is derived from network theory for the polymeric fluid. We prove that the strong solutions of PTT model will blow up in…

偏微分方程分析 · 数学 2018-12-31 Yuhui Chen , Wei Luo , Zheng-an Yao

We obtain sufficient conditions for the uniqueness of solutions to the Cauchy problem for the continuity equation in classes of measures that need not be absolutely continuous.

偏微分方程分析 · 数学 2018-06-18 V. I. Bogachev , G. Da Prato , M. Röckner , S. V. Shaposhnikov

In this paper we establish a constructive method in order to show global existence and regularity for a class of degenerate parabolic Cauchy problems which satisfy a weak Hoermander condition on a subset of the domain where the data are…

偏微分方程分析 · 数学 2012-10-05 Christian Fries , Joerg Kampen