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We are concerned in this paper with the degenerate fractional diffusion advection equations posed in bounded domains. Due to a suitable formulation, we show the existence of weak entropy solutions for measurable and bounded initial and…

偏微分方程分析 · 数学 2022-10-10 Gerardo Huaroto , Wladimir Neves

We study well-posedness of degenerate mixed-type parabolic-hyperbolic equations $$ \partial_tu+\text{div}\big(f(u)\big)=\mathcal{L}[b(u)] $$ on bounded domains with general Dirichlet boundary/exterior conditions. The nonlocal diffusion…

偏微分方程分析 · 数学 2025-10-15 Nathaël Alibaud , Jørgen Endal , Espen Jakobsen , Ola Mæhlen

We establish the global existence and uniqueness of $L^1$-solutions to the Cauchy problem for time-fractional porous medium type nonlinear diffusion equations. Furthermore, we give the mass conservation law for $L^1$-solutions to…

偏微分方程分析 · 数学 2026-05-20 Mikiya Kametaka , Tatsuki Kawakami

We consider the Cauchy problem for a stochastic scalar parabolic-hyperbolic equation in any space dimension with nonlocal, nonlinear, and possibly degenerate diffusion terms. The equations are nonlocal because they involve fractional…

偏微分方程分析 · 数学 2020-08-10 Neeraj Bhauryal , Ujjwal Koley , Guy Vallet

We study well-posedness of degenerate mixed-type parabolic-hyperbolic equations $$ \partial_tu+\textrm{div}\big(f(u)\big)=\mathcal{L}[b(u)] $$ on bounded domains with general Dirichlet boundary/exterior conditions. The nonlocal diffusion…

偏微分方程分析 · 数学 2025-09-24 Jørgen Endal , Espen R Jakobsen , Ola Mæhlen

We introduce a kinetic formulation for scalar conservation laws with nonlocal and nonlinear diffusion terms. We deal with merely L 1 initial data, general self-adjoint pure jump L{\'e}vy operators, and locally Lipschitz nonlinearities of…

偏微分方程分析 · 数学 2019-10-22 Nathaël Alibaud , Boris Andreianov , Adama Ouedraogo

In this paper, we establish the well-posedness of Cauchy problems for weak solutions to second-order degenerate parabolic equations with a non-smooth, time-dependent degenerate elliptic part that includes both bounded and unbounded…

偏微分方程分析 · 数学 2025-12-04 Khalid Baadi

We prove existence of the largest entropy sub-solution and the smallest entropy super-solution to the Cauchy problem for a nonlinear degenerate parabolic equation with only continuous flux and diffusion functions. Applying this result, we…

偏微分方程分析 · 数学 2020-12-02 Evgeny Yu. Panov

We consider the Cauchy problem for a degenerate fractional conservation laws driven by a noise. In particular, making use of an adapted kinetic formulation, a result of existence and uniqueness of solution is established. Moreover, a…

偏微分方程分析 · 数学 2021-09-27 Abhishek Chaudhary

In some models involving nonlinear conservation laws, physical mechanisms exist which prevent the formation of shocks. This gives rise to conservation laws with a constraint on the gradient of the solution. We approach this problem by…

偏微分方程分析 · 数学 2012-02-07 Paulo Amorim

We study the Cauchy problem for nonlocal reaction diffusion equations with bistable nonlinearity in 1D spatial domain and investigate the asymptotic behaviors of solutions with a one-parameter family of monotonically increasing and…

偏微分方程分析 · 数学 2022-09-13 He Zhang , Yong Li , Xue Yang

We consider the Cauchy problem for doubly non-linear degenerate parabolic equations on Riemannian manifolds of infinite volume, or in $\R^N$. The equation contains a weight function as a capacitary coefficient which we assume to decay at…

偏微分方程分析 · 数学 2019-05-28 Daniele Andreucci , Anatoli F. Tedeev

We consider the fully non-local diffusion equations with non-negative $L^1$-data. Based on the approximation and energy methods, we prove the existence and uniqueness of non-negative entropy solutions for such problems. In particular, our…

偏微分方程分析 · 数学 2023-11-02 Ying Li , Chao Zhang

We prove existence of the largest and the smallest entropy solutions to the Cauchy problem for a nonlinear degenerate anisotropic parabolic equation. Applying this result, we establish the comparison principle in the case when at least one…

偏微分方程分析 · 数学 2020-04-20 Evgeny Yu. Panov

We study a class of degenerate convection diffusion equations with a fractional nonlinear diffusion term. These equations are natural generalizations of anomalous diffusion equations, fractional conservations laws, local convection…

偏微分方程分析 · 数学 2011-07-28 Simone Cifani , Espen R. Jakobsen

We analyze monotone difference schemes for strongly degenerate convection-diffusion equations in one spatial dimension. These nonlinear equations are well-posed within a class of (discontinuous) entropy solutions. We prove that the L1…

偏微分方程分析 · 数学 2013-04-16 Kenneth H. Karlsen , Nils Henrik Risebro , Erlend B. Storrøsten

We prove sharp estimates for the decay in time of solutions to a rather general class of non-local in time subdiffusion equations on a bounded domain subject to a homogeneous Dirichlet boundary condition. Important special cases are the…

偏微分方程分析 · 数学 2013-10-02 Vicente Vergara , Rico Zacher

This paper deals with nonnegative solutions of the one dimensional degenerate parabolic equations with zero homogeneous Dirichlet boundary condition. To obtain an existence result, we prove a sharp gradient estimate of |u_x|. Besides, we…

偏微分方程分析 · 数学 2015-04-13 Anh Dao Nguyen

We study the Cauchy problem for a scalar semilinear degenerate parabolic partial differential equation with stochastic forcing. In particular, we are concerned with the well-posedness in any space dimension. We adapt the notion of kinetic…

偏微分方程分析 · 数学 2012-02-10 Martina Hofmanova

Motivated by porous medium equations with randomly perturbed velocity field, this paper considers a class of nonlinear degenerate diffusion equations with nonlinear conservative noise in bounded domains. The existence, uniqueness and…

概率论 · 数学 2023-09-06 Kai Du , Ruoyang Liu , Yuxing Wang
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