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It is studied the Cauchy problem for the equations of Burgers' type but with bounded dissipation flux. Such equations degenerate to hyperbolic ones as the velocity gradient tends to infinity. Thus the discontinuous solutions are permitted.…

偏微分方程分析 · 数学 2007-05-23 Yuri G. Rykov

In the paper, a linear differential equation with variable coefficients and a Caputo fractional derivative is considered. For this equation, a Cauchy problem is studied, when an initial condition is given at an intermediate point that does…

最优化与控制 · 数学 2020-09-01 Mikhail Gomoyunov

We consider inverse problems of determining coefficients or time independent factors of source terms in radiative transport equations by means of Carleman estimate. We establish global Lipschitz stability results with an additional…

偏微分方程分析 · 数学 2020-09-10 Manabu Machida , Masahiro Yamamoto

A general purely crystalline mean curvature flow equation with a nonuniform driving force term is considered. The unique existence of a level set flow is established when the driving force term is continuous and spatially Lipschitz…

偏微分方程分析 · 数学 2020-06-09 Yoshikazu Giga , Norbert Pozar

We give stability estimates in the Cauchy problem for general partial differential equation of the elliptic type similar to the Helmholtz equation. We do not impose any (pseudo)convexity assumptions on the domain or the operator. These…

偏微分方程分析 · 数学 2018-07-04 Victor Isakov

We consider a system of evolutionary equations that is capable of describing certain viscoelastic effects in linearized yet nonlinear models of solid mechanics. The essence of the paper is that the constitutive relation, involving the…

偏微分方程分析 · 数学 2020-11-25 Miroslav Bulíček , Victoria Patel , Yasemin Şengül , Endre Süli

This paper studies a Boltzmann-Nordheim equation in a slab with two-dimensional velocity space and pseudo-Maxwellian forces. Strong solutions are obtained for the Cauchy problem with large initial data in an $ L^1 \cap L^{\infty} $ setting.…

数学物理 · 物理学 2016-01-27 L. Arkeryd , A. Nouri

When a solution to the Cauchy problem for nonlinear dispersive equations is obtained by a fixed point argument using auxiliary function spaces, it is non-trivial to ensure uniqueness of solutions in a natural space such as the class of…

偏微分方程分析 · 数学 2021-07-20 Nobu Kishimoto

Pathwise uniqueness for multi-dimensional stochastic McKean--Vlasov equation is established under moderate regularity conditions on the drift and diffusion coefficients. Both drift and diffusion depend on the marginal measure of the…

概率论 · 数学 2023-01-02 Alexander Veretennikov

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

Dissipative solutions have recently been studied as a generalized concept for weak solutions of the complete Euler system. Apparently, these are expectations of suitable measure-valued solutions. Motivated from [Feireisl, Ghoshal and Jana,…

偏微分方程分析 · 数学 2020-05-14 Shyam Sundar Ghoshal , Animesh Jana

We consider the one-dimensional Gross-Pitaevskii equation perturbed by a Dirac potential. Using a fine analysis of the properties of the linear propagator, we study the well-posedness of the Cauchy Problem in the energy space of functions…

偏微分方程分析 · 数学 2016-12-20 Isabella Ianni , Stefan Le Coz , Julien Royer

In this paper, we obtain the sharp uniqueness for an inverse $x$-source problem for a one-dimensional time-fractional diffusion equation with a zeroth-order term by the minimum possible lateral Cauchy data. The key ingredient is the unique…

偏微分方程分析 · 数学 2023-01-02 Zhiyuan Li , Yikan Liu , Masahiro Yamamoto

In this paper we study the Cauchy problem for one multidimensional compressible nonlocal model of the dissipative quasi-geostrophic equations. First, we obtain the local existence and uniqueness of the smooth non-negative solution or the…

偏微分方程分析 · 数学 2012-02-07 Shu Wang , Li Linrui , Shengtao Chen

Fitzpatrick's variational representation of maximal monotone operators is here extended to a class of pseudo-monotone operators in Banach spaces. On this basis, the initial-value problem associated with the first-order flow of such an…

偏微分方程分析 · 数学 2017-06-08 Augusto Visintin

Proving the uniqueness of solutions to multi-species cross-diffusion systems is a difficult task in the general case, and there exist very few results in this direction. In this work, we study a particular system with zero-flux boundary…

偏微分方程分析 · 数学 2019-07-25 Judith Berendsen , Martin Burger , Virginie Ehrlacher , Jan-Frederik Pietschmann

In this paper, we consider the inverse problem of detecting a corrosion coefficient between two layers of a conducting medium from the Neumann-to-Dirichlet map. This inverse problem is motivated by the description of the index of corrosion…

数值分析 · 数学 2019-04-08 Bastian Harrach , Houcine Meftahi

A theorem is proved on the uniform estimation of the residual term of the asymptotic expansion with respect to a small parameter of the solution of the initial problem for a singularly perturbed differential operator weakly nonlinear…

偏微分方程分析 · 数学 2022-11-14 A. Nesterov , A. Zaborsciy

We consider the inverse problem for the general transport equation with external field, source term and absorption coefficient. We show that the source and the absorption coefficients can be uniquely reconstructed from the boundary…

偏微分方程分析 · 数学 2019-04-24 Ru-Yu Lai , Qin Li

We consider Hamilton--Jacobi equations, where the Hamiltonian depends discontinuously on both the spatial and temporal location. Our main results are the existence and well--posedness of a viscosity solution to the Cauchy problem. We define…

偏微分方程分析 · 数学 2007-05-23 Giuseppe Maria Coclite , Nils Henrik Risebro