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相关论文: Existence and analyticity of solutions of the Kura…

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We explore two approaches to proving existence and analyticity of solutions to nonlinear parabolic differential equations. One of these methods works well for more general nonlinearities, while the second method gives stronger results when…

偏微分方程分析 · 数学 2025-04-22 David Ambrose , Milton Lopes Filho , Helena Nussenzveig Lopes

There is little analytical theory for the behavior of solutions of the Kuramoto-Sivashinsky equation in two spatial dimensions over long times. We study the case in which the spatial domain is a two-dimensional torus. In this case, the…

偏微分方程分析 · 数学 2017-08-30 David M. Ambrose , Anna L. Mazzucato

In two spatial dimensions, there are very few global existence results for the Kuramoto-Sivashinsky equation. The majority of the few results in the literature are strongly anisotropic, i.e. are results of thin-domain type. In the spatially…

偏微分方程分析 · 数学 2021-09-03 David M. Ambrose , Anna L. Mazzucato

Initial-boundary value problems for the $n$-dimensional ($n$ is a natural number from the interval [2,7]) Kuramoto-Sivashinsky equation posed on smooth bounded domains in $\mathbb{R}^n$ were considered. The existence and uniqueness of…

偏微分方程分析 · 数学 2022-05-24 N. A. Larkin

We obtain a global existence result for the three-dimensional Navier-Stokes equations with a large class of data allowing growth at spatial infinity. Namely, we show the global existence of suitable weak solutions when the initial data…

偏微分方程分析 · 数学 2020-01-08 Zachary Bradshaw , Igor Kukavica , Tai-Peng Tsai

We are concerned with how regular initial data have to be to ensure local existence for Einstein's equations in wave coordinates. Klainerman-Rodnianski and Smith-Tataru showed that there in general is local existence for data in Sobolev…

偏微分方程分析 · 数学 2016-09-19 Boris Ettinger , Hans Lindblad

This report provides an investigation into solving the Kuramoto-Sivashinsky equation in two spatial dimensions (2DKS) using a pseudo-spectral method on various rectangular periodic domains. The Kuramoto-Sivashinsky equation is a fluid…

数值分析 · 数学 2025-05-27 Jovan Žigić

In this article we study the solution of the Kuramoto-Sivashinsky equation (for surface erosion or surface growth) on a bounded interval subject to a random forcing term. We show that a unique solution to the equation exists for all time…

动力系统 · 数学 2007-05-23 Jinqiao Duan , Vincent Ervin

We consider here the local existence of strong solutions for the Zakharov-Kuznestov (ZK) equation posed in a limited domain (0,1)_{x}\times(-pi /2, pi /2)^d, d=1,2. We prove that in space dimensions 2 and 3, there exists a strong solution…

偏微分方程分析 · 数学 2013-07-26 Chuntian Wang

We prove existence of global-in-time weak solutions of the incompressible Navier-Stokes equations in the half-space $\mathbb{R}^3_+$ with initial data in a weighted space that allow non-uniformly locally square integrable functions that…

偏微分方程分析 · 数学 2023-07-07 Zachary Bradshaw , Igor Kukavica , Wojciech S. Ożański

We study the Kuramoto-Sivashinsky equation (KSE) in scalar form on the two-dimensional torus with and without advection by an incompressible vector field. We prove local existence of mild solutions for arbitrary data in L2. We then study…

偏微分方程分析 · 数学 2020-09-10 Yuanyuan Feng , Anna L. Mazzucato

We consider the Kuramoto-Sivashinsky equation (KSE) on the two-dimensional torus in the presence of advection by a given background shear flow. Under the assumption that the shear has a finite number of critical points and there are…

偏微分方程分析 · 数学 2021-05-05 Michele Coti Zelati , Michele Dolce , Yuanyuan Feng , Anna L. Mazzucato

We give the solution of the Monge-Kantorovitch problem on the Wiener space for the singular Wasserstein metric which is defined with respect to the distance of the underlying Cameron-Martin space. We show, under the hypothesis that this…

概率论 · 数学 2007-05-23 D. Feyel , A. S. Ustunel

The problem of constructing data-based, predictive, reduced models for the Kuramoto-Sivashinsky equation is considered, under circumstances where one has observation data only for a small subset of the dynamical variables. Accurate…

数值分析 · 数学 2016-08-11 Fei Lu , Kevin Lin , Alexandre J. Chorin

We obtain a global existence result for the three-dimensional Navier-Stokes equations with a large class of initial data allowing growth at spatial infinity. Our work is a continuation of the results by T.-P. Tsai, Z. Bradshaw, I. Kukavica…

偏微分方程分析 · 数学 2024-05-08 Misha Chernobai

In this paper we consider a Novikov equation, recently shown to describe pseudospherical surfaces, to extend some recent results of regularity of its solutions. By making use of the global well-posedness in Sobolev spaces, for analytic…

偏微分方程分析 · 数学 2024-10-08 Priscila Leal da Silva

For the 1-dimensional Kuramoto-Sivashinsky equation with random forcing term, existence and uniqueness of solutions is proved. Then, the Markovian semigroup is well defined; its properties are analyzed, in order to provide sufficient…

概率论 · 数学 2009-09-29 B. Ferrario

An initial-boundary value problem for the n-dimensional ($n$ is a natural number from the interval [2,7]) Kuramoto-Sivashinsky-Zakharov-Kuznetsov equation posed on smooth bounded domains in $\mathbb{R}^n$ was considered. The existence and…

偏微分方程分析 · 数学 2022-05-24 Nikolai Larkin

A non linear Ito equation in a Hilbert space is studied by means of Girsanov theorem. We consider a non linearity of polynomial growth in suitable norms, including that of quadratic type which appears in the Kuramoto-Sivashinsky equation…

概率论 · 数学 2008-01-04 B. Ferrario

In this paper, two boundary controllers are proposed to stabilize the origin of the nonlinear Kuramoto-Sivashinsky equation under intermittent measurements. More precisely, the spatial domain is divided into two sub-domains. The state of…

最优化与控制 · 数学 2022-04-06 M. Maghenem , C. Prieur , E. Witrant
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