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The bidomain system of degenerate reaction-diffusion equations is a well-established spatial model of electrical activity in cardiac tissue, with "reaction" linked to the cellular action potential and "diffusion" representing current flow…

偏微分方程分析 · 数学 2018-03-26 Mostafa Bendahmane , Kenneth H. Karlsen

The existence of global nonnegative martingale solutions to a stochastic cross-diffusion system for an arbitrary but finite number of interacting population species is shown. The random influence of the environment is modeled by a…

概率论 · 数学 2020-03-20 Gaurav Dhariwal , Ansgar Jüngel , Nicola Zamponi

The existence of a global martingale solution to a cross-diffusion system with multiplicative Wiener noise in a bounded domain with no-flux boundary conditions is shown. The model describes the dynamics of population densities of different…

偏微分方程分析 · 数学 2022-11-10 Mrinmay Biswas , Ansgar Jüngel

We construct non-negative martingale solutions to the stochastic porous medium equation in one dimension with homogeneous Dirichlet boundary conditions which exhibit a type of sticky behavior at zero. The construction uses the stochastic…

概率论 · 数学 2024-11-12 Ben Hambly , Dörte Kreher , Konstantins Starovoitovs

This article is concerned with the existence of solution to the stochastic Degasperis-Procesi equation on $\mathbb{R}$ with an infinite dimensional multiplicative noise and integrable initial data. Writing the equation as a system composed…

概率论 · 数学 2024-09-05 Nikolai V. Chemetov , Fernanda Cipriano

The existence of global-in-time bounded martingale solutions to a general class of cross-diffusion systems with multiplicative Stratonovich noise is proved. The equations describe multicomponent systems from physics or biology with…

We establish the global existence of weak martingale solutions to the simplified stochastic Ericksen--Leslie system modeling the nematic liquid crystal flow driven by Wiener-type noises on the two-dimensional bounded domains. The…

偏微分方程分析 · 数学 2020-11-19 Hengrong Du , Changyou Wang

In this paper, we prove the existence of martingale solutions of a class of stochastic equations with pseudo-monotone drift of polynomial growth of arbitrary order and a continuous diffusion term with superlinear growth. Both the nonlinear…

概率论 · 数学 2025-05-28 Bixiang Wang

Stochastic Navier-Stokes equations in 2D and 3D possibly unbounded domains driven by a multiplicative Gaussian noise are considered. The noise term depends on the unknown velocity and its spatial derivatives. The existence of a martingale…

概率论 · 数学 2017-01-03 Zdzisław Brzeźniak , Elżbieta Motyl

We consider a nonlinear stochastic partial differential equation (SPDE) that takes the form of the Camassa--Holm equation perturbed by a convective, position-dependent, noise term. We establish the first global-in-time existence result for…

偏微分方程分析 · 数学 2024-01-08 Luca Galimberti , Helge Holden , Kenneth H. Karlsen , Peter H. C. Pang

This work is about the existence of martingale solutions and weak solutions for a stochastic nonlocal Burgers equation on bounded intervals. The existence of a martingale solution is shown by using a Galerkin approximation, Prokhorov's…

概率论 · 数学 2014-10-29 Guangying Lv , Jinqiao Duan

The global weak martingale solution is built through a four-level approximation scheme to stochastic compressible active liquid crystal system driven by multiplicative noise in a smooth bounded domain in $\mathbb{R}^{3}$ with large initial…

偏微分方程分析 · 数学 2020-10-08 Zhaoyang Qiu , Yixuan Wang

We prove the existence of martingale solutions to stochastic thin-film equations in the physically relevant space dimension $d=2$. Conceptually, we rely on a stochastic Faedo-Galerkin approach using tensor-product linear finite elements in…

偏微分方程分析 · 数学 2024-07-31 Stefan Metzger , Günther Grün

We establish the existence and uniqueness of strong solutions, in both the PDE and probabilistic sense, for a broad class of nonlinear stochastic partial differential equations (SPDEs) on a bounded domain $\mathscr{O}\subset \mathbb{R}^d$…

偏微分方程分析 · 数学 2025-12-16 Agus L. Soenjaya , Thanh Tran

In this paper, we study the stochastic degenerate Keller-Segel system perturbed by linear multiplicative noise in a bounded domain $\mathcal{O}$. We establish the global existence of martingale solutions for this model with any nonnegative…

偏微分方程分析 · 数学 2025-02-28 Jinhuan Wang , Qian Li , Hui Huang

The existence of global nonnegative martingale solutions to cross-diffusion systems of Shigesada-Kawasaki-Teramoto type with multiplicative noise is proven. The model describes the stochastic segregation dynamics of an arbitrary number of…

概率论 · 数学 2025-02-04 Marcel Braukhoff , Florian Huber , Ansgar Jüngel

We construct a martingale solution of the stochastic nonlinear Schr\"odinger equation with a multiplicative noise of jump type in the Marcus canonical form. The problem is formulated in a general framework that covers the subcritical…

概率论 · 数学 2018-09-27 Zdzisław Brzeźniak , Fabian Hornung , Utpal Manna

The existence of global nonnegative martingale solutions to a cross-diffusion system of Shigesada-Kawasaki-Teramoto type with multiplicative noise is proven. The model describes the segregation dynamics of populations with an arbitrary…

概率论 · 数学 2020-12-24 Gaurav Dhariwal , Florian Huber , Ansgar Jüngel

In this work we consider a stochastic evolution equation which describes the system governing the nematic liquid crystals driven by a pure jump noise. The existence of a martingale solution is proved for both 2D and 3D cases. The…

概率论 · 数学 2017-06-19 Zdzisław Brzeźniak , Utpal Manna , Akash A. Panda

We consider a stochastic nonlinear Schr\"odinger equation with multiplicative noise in an abstract framework that covers subcritical focusing and defocusing stochastic NLS in $H^1$ on compact manifolds and bounded domains. We construct a…

概率论 · 数学 2018-10-17 Zdzislaw Brzezniak , Fabian Hornung , Lutz Weis
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