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The article studies the reiterated homogenization of linear elliptic variational inequalities arising in problems with unilateral constrains. We assume that the coefficients of the equations satisfy and abstract hypothesis covering on each…

数学物理 · 物理学 2018-11-16 Hermann Douanla , Cyrille Kenne

The existence of entire solutions to quasilinear elliptic systems exhibiting both singular and convective reaction terms is discussed. An auxiliary problem, obtained by `freezing' the convection terms and `shifting' the singular ones, is…

偏微分方程分析 · 数学 2021-07-14 Umberto Guarnotta

In this paper,for a given conservative solution, we introduce a set of auxiliary variables tailored to this particular solution, and prove that these variables satisfy a particular semilinear system having unique solutions. In turn, we get…

偏微分方程分析 · 数学 2023-10-25 Zhen He , Zhaoyang Yin

In this paper, we formulate the notion of the $\mathcal{F}$-stability of self-shrinking solutions to mean curvature flow in arbitrary codimension. Then we give some classifications of the $\mathcal{F}$-stable self-shrinkers in arbitrary…

微分几何 · 数学 2012-04-24 Ben Andrews , Haizhong Li , Yong Wei

We propose a model of mass-conserving heterogeneous nucleation to describe the dynamics of ligand-receptor binding in closed cellular compartments. When the ligand dissociation rate is small, competition among receptors for free ligands…

软凝聚态物质 · 物理学 2015-05-30 T. Chou , M. D'Orsogna

We study the large time behavior of the sublinear viscosity solution to a singular Hamilton-Jacobi equation that appears in a critical Coagulation-Fragmentation model with multiplicative coagulation and constant fragmentation kernels. Our…

偏微分方程分析 · 数学 2020-10-02 Hiroyoshi Mitake , Hung V. Tran , Truong-Son Van

The conservation of mass is common issue with multiphase fluid simulations. In this work a novel projection method is presented which conserves mass both locally and globally. The fluid pressure is augmented with a time-varying component…

流体动力学 · 物理学 2016-05-24 David Salac

This article extends the work on stochastic constrained heat equation in \cite{brzezniak2020global}. We will show the existence of Martingale solutions to the stochastic-constrained heat equations. The proof is based on compactness,…

概率论 · 数学 2024-11-08 Javed Hussain , Abdul Fatah , Saeed Ahmed

For $n$-body problem with arbitrary positive masses, we prove there are regularizable collinear periodic solutions for any ordering of the masses, going from a simultaneous binary collision to another in half of a period with half of the…

动力系统 · 数学 2024-09-05 Guowei Yu

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 prove existence and uniqueness of self-similar solutions with exponential form $$ u(x,t)=e^{\alpha t}f(|x|e^{-\beta t}), \qquad \alpha, \ \beta>0 $$ to the following quasilinear reaction-diffusion equation $$ \partial_tu=\Delta…

偏微分方程分析 · 数学 2022-10-07 Razvan Gabriel Iagar , Marta Latorre , Ariel Sánchez

We consider a mass-conserving bistable equation with a saturating flux on an interval. This is the quasilinear analogue of the Rubinstein-Steinberg equation, suitable for description of order parameter conserving solid-solid phase…

动力系统 · 数学 2011-10-12 Martin Burns , Michael Grinfeld

This work deals with the existence of an almost periodic solution for certain kind of differential equations with generalized piecewise constant argument, almost periodic coefficients which are seen as a perturbation of a linear equation of…

动力系统 · 数学 2014-01-03 Samuel Castillo , Manuel Pinto

Existence of specific \emph{eternal solutions} in exponential self-similar form to the following quasilinear diffusion equation with strong absorption$$\partial_t u=\Delta u^m-|x|^{\sigma}u^q,$$posed for…

偏微分方程分析 · 数学 2023-10-12 Razvan Gabriel Iagar , Philippe Laurençot

We consider the numerical approximation of compressible flow in a pipe network. Appropriate coupling conditions are formulated that allow us to derive a variational characterization of solutions and to prove global balance laws for the…

数值分析 · 数学 2016-10-06 Herbert Egger

We design and analyse a semi-implicit finite volume scheme for the two-dimensional rotating shallow water (RSW) equations that is energy stable, well-balanced (capable of preserving discrete geostrophic steady states), consistent, and…

数值分析 · 数学 2025-09-26 K. R. Arun , A. Krishnamurthy

The aim of this paper is to show an existence theorem for a kinetic model of coagulation-fragmentation with initial data satisfying the natural physical bounds, and assumptions of finite number of particles and finite $L^p$-norm. We use the…

偏微分方程分析 · 数学 2015-05-13 Damien Broizat

Explicit conditions are presented for the existence, uniqueness and ergodicity of the strong solution to a class of generalized stochastic porous media equations. Our estimate of the convergence rate is sharp according to the known optimal…

概率论 · 数学 2007-05-23 Giuseppe Da Prato , Boris L. Rozovskii , Michael Röckner , Feng-Yu Wang

We study solutions of the system of PDE $D\psi({\bf v}_t)=\text{div}DF(D{\bf v})$, where $\psi$ and $F$ are convex functions. This type of system arises in various physical models for phase transitions. We establish compactness properties…

偏微分方程分析 · 数学 2015-08-25 Ryan Hynd

We prove compactness and hence existence for solutions to a class of non linear transport equations. The corresponding models combine the features of linear transport equations and scalar conservation laws. We introduce a new method which…

偏微分方程分析 · 数学 2011-08-22 Fethi Ben Belgacem , Pierre-Emmanuel Jabin