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相关论文: Partial regularity for the steady hyperdissipative…

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We present and prove a version of the elliptic regularity theorem for partial differential equations involving fractional Riemann-Liouville derivatives. In this case, regularity is defined in terms of Sobolev spaces $H^s(X)$: if the forcing…

偏微分方程分析 · 数学 2021-05-03 Arran Fernandez

T. Tao constructed an averaged Navier-Stokes equations which obey an energy identity. Nevertheless, he proved that smooth solutions can blow up in finite time. This demonstrates that any proposed positive solution to the famous regularity…

偏微分方程分析 · 数学 2018-12-18 Zhentao Jin , Yi Zhou

The paper contains several regularity results and blow-up criterions for a surface growth model, which seems to have similar properties to the 3D Navier-Stokes, although it is a scalar equation. As a starting point we focus on energy…

偏微分方程分析 · 数学 2009-02-10 Dirk Blomker , Marco Romito

We construct solutions to the randomly-forced Navier--Stokes--Poisson system in periodic three-dimensional domains or in the whole three-dimensional Euclidean space. These solutions are weak in the sense of PDEs and also weak in the sense…

偏微分方程分析 · 数学 2020-05-04 Donatella Donatelli , Pierangelo Marcati , Prince Romeo Mensah

We study the global regularity, for all time and all initial data in $H^{1/2}$, of a recently introduced decimated version of the incompressible 3D Navier-Stokes (dNS) equations. The model is based on a projection of the dynamical evolution…

偏微分方程分析 · 数学 2015-06-15 Luca Biferale , Edriss S. Titi

We present a general blow-up technique to obtain local regularity estimates for solutions, and their derivatives, of second order elliptic equations in divergence form in H\"older spaces with variable exponent. The procedure allows to…

偏微分方程分析 · 数学 2023-01-18 Stefano Vita

This paper collects results concerning global rates and large time asymptotics of a fractional fast diffusion on the Euclidean space, which is deeply related with a family of fractional Gagliardo-Nirenberg-Sobolev inequalities. Generically,…

偏微分方程分析 · 数学 2016-11-30 Jean Dolbeault , An Zhang

We study the renormalization group flow of the average action of the stochastic Navier--Stokes equation with power-law forcing. Using Galilean invariance we introduce a non-perturbative approximation adapted to the zero frequency sector of…

统计力学 · 物理学 2015-06-04 Carlos Mejía-Monasterio , Paolo Muratore-Ginanneschi

In the classical work [FK], Fujita and Kato established the local existence of solutions to the 3D Navier-Stokes equations in the critical $\mathbb{H}^{1/2}$-space. In this paper, we are concerned with the global well-posedness of the…

概率论 · 数学 2026-03-10 Wei Hong , Shihu Li , Wei Liu

We address the long-time behavior of the 2D Boussinesq system, which consists of the incompressible Navier-Stokes equations driven by a non-diffusive density. We construct globally persistent solutions on a smooth bounded domain, when the…

偏微分方程分析 · 数学 2025-02-12 Mustafa Sencer Aydın , Pranava Chaitanya Jayanti

We prove that for the Navier Stokes equation with dissipation $(-\Delta)^{\alpha}$, where $1<\alpha<{5/4}$, and smooth initial data, the Hausdorff dimension of the singular set at time of first blow up is at most $5-4\alpha$. This unifies…

偏微分方程分析 · 数学 2016-08-16 Nets Hawk Katz , Nataša Pavlović

We study the regularity of the weak limit of a sequence of dissipative solutions to the Navier--Stokes equations when no assumptions is made on the behavior of the pressures.

偏微分方程分析 · 数学 2017-09-04 Diego Chamorro , Pierre Gilles Lemarié-Rieusset , Kawther Mayoufi

In this work, we consider time-fractional Navier-Stokes equations (NSE) with the external forces involving finite delay. Equations are considered on a bounded domain in 3-D space having sufficiently smooth boundary. We transform the system…

偏微分方程分析 · 数学 2019-08-09 Md Mansur Alam , Shruti Dubey

We identify a sufficient condition under which solutions to the 3D forced Navier--Stokes equations satisfy an $L^p$-in-time version of the Kolmogorov 4/5 law for the behavior of the averaged third order longitudinal structure function along…

偏微分方程分析 · 数学 2025-07-28 Martina Hofmanová , Umberto Pappalettera , Rongchan Zhu , Xiangchan Zhu

Motivated by the probabilistic representation for solutions of the Navier-Stokes equations, we introduce a novel class of stochastic differential equations that depend on the entire flow of its time marginals. We establish the existence and…

概率论 · 数学 2024-12-17 Zimo Hao , Michael Röckner , Xicheng Zhang

We develop here a particular version of the partial regularity theory for the Magneto-Micropolar equations (MMP) where a perturbation term is added. These equations are used in some special cases, such as in the study of the evolution of…

偏微分方程分析 · 数学 2021-11-15 Diego Chamorro , David Llerena

We prove a sufficient conditions of local regularity of suitable weak solutions to the MHD system for the point from $C^3$-smooth part of the boundary. Our conditions are the generalizing of the Caffarelli--Kohn--Nirenberg theorem for…

偏微分方程分析 · 数学 2012-11-20 Viktor Vyalov

This paper is devoted to the global solvability of the Navier-Stokes system with fractional Laplacian $(-\Delta)^{\alpha}$ in $\mathbb{R}^{n}$ for $n\geq2$, where the convective term has the form $(|u|^{m-1}u)\cdot\nabla u$ for $m\geq1$. By…

偏微分方程分析 · 数学 2025-02-04 Huiyang Zhang , SHiwei Cao , Qinghua Zhang

We establish the first finite-time blow-up results for generalized 3D stochastic fractional Navier-Stokes equations \[ \Caputo \mathbf{u} = -(\mathbf{u} \cdot \nabla)\mathbf{u} - \nabla p + \nu \fLaplacian \mathbf{u} +…

概率论 · 数学 2025-07-15 Joel Saucedo , Uday Lamba

In light of the question of finite-time blow-up vs. global well-posedness of solutions to problems involving nonlinear partial differential equations, we provide several cautionary examples which indicate that modifications to the boundary…

偏微分方程分析 · 数学 2014-01-09 Adam Larios , Edriss S. Titi