Dissipative quasi-geostrophic equations with initial data
S. Gala, A. Lahmar-Benbernou
这篇论文被arXiv管理员撤回，因为它抄袭了“吴家宏具有临界或超临界耗散的二维准地转方程2005非线性18 139-154。"
This paper was withdrawn by arXiv admin because it plagiarizes "Jiahong Wu The two-dimensional quasi-geostrophic equation with critical or supercritical dissipation 2005 Nonlinearity 18 139-154."
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
继续探索
A regularity criterion for the dissipative quasi-geostrophic equations
在混合时空Besov空间中建立了耗散拟地转方程弱解的正则性准则。
In this paper, by using Fourier splitting method and the expanded properties of decay character $r^*$, we establish the algebraic decay rate of higher order derivative of solutions to 2D dissipative quasi-geostrophic flows.
Global well-posedness for the critical 2D dissipative quasi-geostrophic equation
给出了临界二维耗散准地转方程的整体适定性的一个初等证明。该论点是基于一个非局部极大值原则，涉及适当的连续模。
Nonlinear Instability for the Critically Dissipative Quasi-Geostrophic Equation
我们证明了临界耗散准地转方程在能量范数下的线性不稳定性蕴涵着非线性不稳定性。
Global Regularity for the Critical Dispersive Dissipative Surface Quasi-Geostrophic Equation
考虑具有色散强迫和临界耗散的地面准地转方程。在充分光滑的初值条件下，证明了光滑解的整体存在性.这是使用一个最大值原理的解决方案，涉及到一个特定的家庭的连续模的保护。
Remarks on the Global Regularity for the Super-Critical 2D Dissipative Quasi-Geostrophic Equation
本文将Kiselev，Nazarov和Volberg最近对临界耗散二维准地转方程适定性的优美证明方法应用到超临界情形。我们证明了如果初值是光滑的和周期的，并且$\left\| \nabla θ_0 \right\|_{L^{\infty}}^{1 - 2 s} \left\| θ_0 \right\|_{L^{\infty}}^{2 s}$很小，其中$s$是分数阶Laplacian的幂，那么超临界耗散二维准地转方程不会出现有限时间奇异性.
Remarks on a fractional diffusion transport equation with applications to the dissipative quasi-geostrophic equation
在这篇文章中，我研究了基于耗散准地转方程的输运方程解的Hölder正则性。根据A. Kiselev和F. Nazarov，我将使用局部Hardy空间的分子特征，以获得关于此类解的Hölder正则性的信息。这将通过遵循向后方程中的分子演化来完成。
Dissipative quasi-geostrophic equations in critical Sobolev spaces: smoothing effect and global well-posedness
本文研究了$\bR^2$和$\bT^2$中的临界和超临界耗散准地转方程。证明了$H^{2-γ}$中具有任意初始值的温和解的高正则性。作为推论，我们利用周期$\dot H^1$资料得到了临界二维准地转方程解的整体存在性结果。还提供了一些时间估计的衰减。
In this paper we show the global existence for critical dissipative quasi-geostrophic equations if $\|\widehat{θ^0}\|_{L^1}$ is small enough; among others we prove the analyticity of such a solution. If in addition the initial condition verifies $|D|^{-δ}θ^0\in L^1(\mathbb R^2)$ with $0<δ<1$, then the solution remains regular and $\lim_{t\rightarrow\infty}t^δ\|\widehatθ(t)\|_{L^1}=0$. Fourier analysis and standard techniques are used.
A new Bernstein's Inequality and the 2D Dissipative Quasi-Geostrophic Equation
我们证明了一个新的Bernstein不等式，它推广了Cannone-Planchon，Danchin和Lemarié-Rieusset的结果.作为该不等式的应用，我们证明了临界Besov空间中具有临界和超临界耗散的二维准地转方程在小初值下的整体适定性，以及在大初值下的局部适定性.
Metastability for the dissipative quasi-geostrophic equation and the non-local enhancement
该研究针对小黏度二维线性化耗散准地转方程的亚稳态问题，证明了线性增强耗散并得到耗散率，还发现非局部项可通过剪切-扩散机制再次增强扩散效应。
On the critical dissipative quasi-geostrophic equation
二维准地转（QG）方程是三维不可压欧拉方程的二维模型。当耗散包含在模型中时，如果耗散的波数依赖性是超线性的，那么解总是存在的。低于这个临界功率，耗散似乎是不够的。例如，对于任意大的初始数据，临界耗散QG方程是否具有整体光滑解是未知的。本文证明了临界耗散QG方程在小$L^\infty$范数初值下整体经典解的存在唯一性。$L^{\infty}$小条件的重要性是由于$L^{\infty}$是非耗散QG方程的守恒范数，并且在耗散QG的所有解上都是非增的。无论大小。
Global regularity for a modified critical dissipative quasi-geostrophic equation
本文考虑修正的准地转方程\begin{gather*} \del_t θ+ (u \cdot \grad) θ+ κΛ^αθ= 0 u = Λ^{α- 1} R^{\perp}θ. \end{gather*}，其中包含$κ> 0$，$α\in (0,1]$和$θ_0 \in \lp{2}(\R^2)$。我们注意到，额外的$Λ^{α- 1}$的引入是为了使该系统的标度不变性类似于临界准地转方程的标度不变性。本文利用Besov空间技巧证明了该系统强解的整体存在性和正则性。
Global well-posedness for a Modified 2D dissipative quasi-geostrophic equation with initial data in the critical Sobolev space $H^1$
本文考虑下列修正的准地转方程$\partial_tθ+Λ^αθ+u\vec\nablaθ=0$，$u=Λ^{α-1}\mathcal{R}^\perp(θ)$，其中$α\in ]0,1[$为固定参数。该方程是最近由P.Constantin，G. Iyer和J.Wu在\cite{CIW}中作为经典准地转方程的修正。本文证明了对索伯列夫空间$H^1(\mathbb{R}^2),$中的任意初始数据$θ_\ast$，方程（MQG）在$C(\mathbb{R}^{+},H^1(\mathbb{R}^2)) .$中存在整体光滑解$θ$
Eventual Regularity of the Solutions to the Supercritical Dissipative Quasi-Geostrophic Equation
最近，Silvestre证明了轻微超临界地面准地转方程的某些弱解最终变得光滑。为了证明这一点，他采用了起源于卡法雷利和瓦瑟尔著作中的德乔治式论证。Kiselev和Nazarov通过引入一类检验函数证明了Caffarelli和Vasseur结果的一个变化。受Silvestre结果的启发，我们将修改Kiselev和Nazarov工作中的检验函数类，并使用此修改后的类来表明在一定时间内光滑的超临界SQG的解必须永远保持光滑。
Global existence for the critical dissipative surface quasi-geostrophic equation
本文研究了$ \mathbb{R}^2$中的临界耗散面准地转方程。受此方程的齐次统计解的研究的启发，我们证明了对于任何大的初始数据$θ_{0}$ liying在空间$Λ^{s} (\dot H^{s}_{uloc}(\mathbb{R}^2)) \cap L^\infty(\mathbb{R}^2)$的临界（SQG）有一个整体弱解的时间为所有$1/2< s<1$。我们的证明是基于截断的$(SQG)_{R,\ep}$方程验证的能量不等式。通过经典的紧性论证，我们证明了在$(SQG)_{R,\ep}$中我们能够传递到极限（$R \rightarrow \infty$，$\ep \rightarrow 0$），并且极限解具有期望的正则性.
In this paper, we consider the two-dimensional surface quasi-geostrophic equation with fractional horizontal dissipation and fractional vertical thermal diffusion. Global existence of classical solutions is established when the dissipation powers are restricted to a suitable range. Due to the nonlocality of these 1D fractional operators, some of the standard energy estimate techniques no longer apply, to overcome this difficulty, we establish several anisotropic embedding and interpolation inequalities involving fractional derivatives. In addition, in order to bypass the unavailability of the …
Dissipative models generalizing the 2D Navier-Stokes and the surface quasi-geostrophic equations
研究了一类分数阶耗散的活动标量方程的全局（时间）正则性问题。速度场$u$的每个分量由有源标量$θ$到$\mathcal{R} Λ^{-1} P(Λ) θ$确定，其中$\mathcal{R}$表示Riesz变换，$Λ=(-Δ)^{1/2}$和$P(Λ)$表示傅立叶乘法算子族。二维Navier-Stokes涡度方程对应于特殊情况$P(Λ)=I$，而地面准地转（SQG）方程对应于$P(Λ) =Λ$。我们得到了一类方程的整体正则性，其中要求$P(Λ)$和耗散拉普拉斯算子的分数幂满足一个显式条件。特别地，具有任意分数阶耗散和对任意$γ>0$具有$P(Λ)= (\log(I-Δ))^γ$的有源标量方程是全局正则的.
A Hopf-bifurcation theorem for the critically dissipative quasi-geostrophic equation
本文研究了临界耗散准地转方程在$\textbf{T}^2$中的动力学行为。我们证明了该系统具有依赖于时间的周期解，从光滑的稳定解分支出来，即一个Hopf分支定理。
Well-posedness of the 2D surface quasi-geostrophic equation in variable Lebesgue spaces
本文在变指数Lebesgue空间中研究耗散型表面准地转方程的适定性，利用分数阶热核的衰减估计，建立了解的局部存在性与正则性。
We consider the initial value problem for the 2D quasi-geostrophic equation with weak dissipation term $κ(-Δ)^{α/2}θ (0<α\leqslant 1)$ and dispersive forcing term $Au_2$. We establish a unique global solution for a given initial data $θ_0$ which belongs to the scaling subcritical Sobolev space $H^s(\mathbb{R}^2)\ (s>2-α)$ if the size of dispersion parameter is sufficiently large. This phenomenon is so-called the global regularity. We also obtain the relationship between the initial data and the dispersion parameter, which ensures the existence of the global solution. Moreover, we show the glob…
On the global well-posedness of the critical quasi-geostrophic equation
在临界Besov空间$\dot B^0_{\infty,1}(\RR^2).$中，我们证明了临界耗散准地转方程在大初值条件下的整体适定性
Decay of weak solutions to the 2D dissipative quasi-geostrophic equation
研究了二维耗散准地转方程弱解范数的衰减性。当初始数据仅为$L^2$时，我们证明了$L^2$范数趋于零但没有一致速率，即存在具有任意慢衰减的解.对于$L^p \cap L^2$中的初始数据，使用$1 \leq p < 2$，我们能够在$L^2$中获得均匀的衰减速率。我们还证明了当初始数据的$L^{\frac{2}{2 α-1}}$范数足够小时，对于$q > \frac{2}{2 α-1}$，$L^q$范数具有一致的衰减率。这个结果使我们能够证明当初始数据在$L^2 \cap L^{\frac{2}{2 α-1}}$中时，$q \geq \frac{2}{2 α-1}$的$L^q$范数的衰减。
We derive regularized contour dynamics equations for the motion of infinite sharp fronts in the two-dimensional incompressible Euler, surface quasi-geostrophic (SQG), and generalized surface quasi-geostrophic (gSQG) equations. We derive a cubic approximation of the contour dynamics equation and prove the short-time well-posedness of the approximate equations for generalized surface quasi-geostrophic fronts and weak well-posedness for surface quasi-geostrophic fronts.
Global regularity for the critical 2-D dissipative quasi-geostrophic equation with force
这是一个注释，通过使用A.基谢廖夫，F. Nazarov和A. Voldberg等提出的方法，在初值是光滑周期的，且周期力在空间上是$α$-Hölder连续的$α> 0$的条件下，利用修正的标度论证，证明了具有光滑周期力的临界二维耗散准地转方程的整体正则性.
On Solutions of Three Quasi-Geostrophic Models
我们考虑二维准地转模式及其两种不同的正则化。对于具有次临界或临界指标的正则化模型，建立了全局正则性结果。将Onsager关于三维Euler方程弱解猜想的证明和Duchon和Robert的耗散解概念推广到准地转方程的弱解.
We prove the global well-posedness of the continuously stratified inviscid quasi-geostrophic equations in $\Bbb R^3$.
Quasi-geostrophic equations with initial data in Banach spaces of local measures
这篇论文被arXiv管理员删除，因为它剽窃了Jose-A的电子文章HYKE 2005-010（http：//www.hyke.org/preprint/index.php）。Carrillo和Lucas C.f.费雷拉，题为“耗散准地转方程的自相似解和大时间渐近性”。
Global well-posedness and a decay estimate for the critical dissipative quasi-geostrophic equation in the whole space
本文研究了具有任意$H^1$初值的$\bR^2$中的临界耗散准地转方程。在给出一定的衰减估计后，通过适当修改[11]中的方法，证明了全局适定性结果。本文还讨论了高阶齐次Sobolev范数解的时间衰减估计。
Drift diffusion equations with fractional diffusion and the quasi-geostrophic equation
受临界耗散准地转方程的启发，我们证明了具有L^2初值和关于漂移的极小假设的漂移-扩散方程是局部Holder连续的.作为应用，我们证明了具有L^2初值和临界扩散（-Δ）^{1/2}的准地转方程的解对任何空间维都是局部光滑的.
On the a priori estimates for the Euler, the Navier-Stokes and the quasi-geostrophic equations
本文利用相似变换方法证明了三维Euler方程、三维Navier-Stokes方程和二维准地转方程的新的\emph{a priori}估计。
We show the existence of nontrivial stationary weak solutions to the surface quasi-geostrophic equations on the two dimensional periodic torus.
Eventual regularization for the slightly supercritical quasi-geostrophic equation
本文证明了一类略超临界准地转方程的弱解在长时间内是光滑的。我们证明它使用德乔治型参数使用的想法从最近的一篇论文由Caffarelli和Vasseur。
We revisit a model for three-dimensional, inviscid quasi-geostrophic flow on bounded, cylindrical domains introduced by the authors in \cite{nv18}. We prove the local-in-time existence of classical solutions.
In a recent article by Gravejat and Smets, it is built smooth solutions to the inviscid surface quasi-geostrophic equation that have the form of a traveling wave. In this article we work back on their construction to provide solution to a more general class of quasi-geostrophic equation where the half-laplacian is replaced by any fractional laplacian.
The initial value problem for the two dimensional dissipative quasi-geostrophic equation derived from geophisical fluid dynamics is studied. The dissipation of this equation is given by the fractional Laplacian. It is known that the half Laplacian is a critical dissipation for the quasi-geostrophic equation. In this paper, far field asymptotics of solutions are given in the critical and the supercritical cases.
On the global solutions of the super-critical 2D quasi-geostrophic equation in Besov spaces
本文研究超临界二维耗散准地转方程。我们得到了一些正则化效应，使得我们能够证明Lebesgue空间$L^p,$ \mbox {with $p\in[1,\infty].$上构造的临界Besov空间中的小初始数据的整体适定性结果。
We study the existence of doubly connected rotating patches for the inviscid surface quasi- geostrophic equation left open in \cite{HHH}. By using the approach proposed by \cite{CCGS} we also prove that close to the annulus the boundaries are actually analytic curves.
In this article, the authors prove the existence of global weak solutions to the inviscid three-dimensional quasi-geostrophic equation. This equation models the evolution of the temperature on the surface of the earth. It is widely used in geophysics and meteorology.
Global well-posedness for the 2 D quasi-geostrophic equation in a critical Besov space
证明了当（大）数据属于临界尺度不变空间$\dot{B}^{2-2\al}_{2, \infty}\cap L^{2/(2\al-1)}$时，二维准地转方程存在整体唯一的强解.
In this paper, we show that the global solution of the surface anisotropic two-dimensional quasi-geostrophic equation with fractional horizontal dissipation and vertical thermal diffusion established by the author in [2] is bounded in Sobolev spaces uniformly with respect to time.
Consider the surface quasi-geostrophic equation with random diffusion, white in time. We show global existence and uniqueness in high probability for the associated Cauchy problem satisfying a Gevrey type bound. This article is inspired by recent work of Glatt-Holtz and Vicol.
Global regularity for the supercritical dissipative quasi-geostrophic equation with large dispersive forcing
本文研究了具有超临界耗散和全空间色散强迫的二维准地转方程。当色散振幅参数足够大时，我们证明了具有大初值的方程的强解的整体适定性。当振幅参数趋于$\infty$时，我们还证明了强收敛性.这两个结果依赖于相应的线性方程的Escherichartz型估计。
In this paper, we prove the existence of relative equilibria with holes for quasi-geostrophic shallow-water equations. More precisely, using bifurcation techniques, we establish for any m large enough the existence of two branches of m-fold doubly-connected V-states bifurcating from any annulus of arbitrary size.
Regularization for the supercritical quasi-geostrophic equation
受Caffarelli和Vasseur在最近的一篇论文中使用的De Giorgi型论证的启发，我们在对初始数据作最小假设的情况下，证明了超临界准地转方程的弱解的Hölder正则性.
In the present study, we find that the surface quasi-geostrophic equation admits exact solutions, which evolve with time in quasi-stationary states. The solutions presented are available for any dissipation effect $κ(-Δ)^α$ ($κ>0$, $0\le α<1$), involved in the equation. When the equation is supercritical ($0\le α<\frac12$), the problem on the existence of large global regular solutions remains open. This study, however, provides explicit sample solutions for the understanding of the uncertain problem.
We compute the sharp time decay rates of the solutions of the IVP for quasi-geostrophic equation and the Boussinesq model, subject to fractional dissipation. Moreover, we explicitly identify the asymptotic profiles, the kernel of the $α$ stable processes, which are analogues of the Oseen vortices.
Optimal estimates for far field asymptotics of solutions to the quasi-geostrophic equation
研究准地转方程临界和超临界初始值问题，通过异常扩散现象揭示解在空间参数趋于无穷时的缓慢衰减行为，并给出远场渐进行为的统一估计。
We provide two-sided pointwise estimates and uniform asymptotics of the solutions to the subcritical quasi-geostrophic equation with initial data in $L^{2/(α-1)}(\mathbb{R}^2)$. Furthermore, we give upper bound of similar type for any derivative of the solutions. Initial data in $L^{p}(\mathbb{R}^2)$, $p>2/(α-1)$, are also discussed.
The inviscid barotropic quasi-geostrophic equation with a free surface is considered. The free surface mandates a non-standard boundary condition. The global existence existence and uniqueness of a weak solution is established, thanks to the uniform in time bounds on the potential vorticity. The solution is also shown to satisfy the initial and boundary conditions in the classical sense.
Motivated by the recent work of Hassainia and Hmidi [Z. Hassainia, T. Hmidi - On the {V}-states for the generalized quasi-geostrophic equations,arXiv preprint arXiv:1405.0858], we close the question of the existence of convex global rotating solutions for the generalized surface quasi-geostrophic equation for $α\in [1,2)$. We also show $C^{\infty}$ regularity of their boundary for all $α\in (0,2)$.
We consider the stationary Quasi-Geostrophic equation in the whole space $\mathbb R^2$ driven by a force $f$. Under certain smallness assumptions of $f$, we establish the existence of solutions with finite $L^2$ norm. This solution is unique among all solutions with finite energy. The unique solution $Θ$ is also shown to be stable in the sense: any solution of the evolutionary Quasi-Geostrophic equation driven by $f$ and starting with finite energy, will return to $Θ$.
We construct a linear approximation of the solution to the Surface Quasi-Geostrophic Equation in $\mathbb{R}^2$, and obtain a convergence rate in $L^p$ between the solution and this approximation with respect to time. We also demonstrate that the nonlinear term of the solution is bounded sharply in $L^p$ by the same function of time.
Riesz transforms on Q-type spaces with application to quasi-geostrophic equation
本文证明了里斯变换$\partial_{j}(-Δ)^{-1/2}$（$j=1,2,...,n$）在Q型空间$Q_α^β(\mathbb{R}^{n})$上的有界性.作为应用，我们在$Q_α^{β,-1}(\mathbb{R}^{2}).$中得到了具有初始数据的准地转方程的适定性和正则性
Regularity of Hölder continuous solutions of the supercritical quasi-geostrophic equation
本文给出了具有超临界耗散的二维准地转方程（$α< 1/2$）弱解的一个正则性结果：如果Leray-Hopf弱解在时间间隔$[t_0, t]$上是Hölder连续的$θ\in C^δ({\mathbb R}^2)$，且具有$δ>1-2α$，则它实际上是$(t_0,t]$上的经典解.
In this paper we prove, if $θ\in C([0,\infty),H^{2-2α}(\mathbb R^2))$ is a global solution of supercritical surface Quasi-Geostrophic equation with small initial data, then $\|θ(t)\|_{H^{2-2α}}$ decays to zero as time goes to infinity. Fourier analysis and standard techniques are used.
We construct families of smooth travelling-wave solutions to the inviscid surface quasi-geostrophic equation (SQG). These solutions can be viewed as the equivalents for this equation of the vortex anti-vortex pairs in the context of the incompressible Euler equation. Our argument relies on the stream function formulation and eventually amounts to solving a fractional nonlinear elliptic equation by variational methods.
Non-Decaying Solutions to the 2D Dissipative Quasi-Geostrophic Equations
该研究针对二维次临界耗散准地转方程，在不假设衰减或周期性的条件下，证明了局部和全局解的存在性、唯一性及最大值原理，并推广了本构定律。
The purpose of this note is to study the weak solutions to the inviscid quasi-geostrophic system for initial data belonging to Lebesgue spaces. We give a global existence result as well as detail the connections between several different notions of weak solutions. In addition, we give a condition under which the energy of the system is conserved.
We study the Cauchy problem for the quasi-geostrophic equations with the critical dissipation in the two dimensional half space under the homogeneous Dirichlet boundary condition. We show the global existence, the uniqueness and the analyticity of solutions, and the real analyticity up to the boundary is obtained. We will show one of natural ways to estimate the nonlinear term for functions satisfying the Dirichlet boundary condition.
扫码添加微信好友，提出您的宝贵建议 👇
💡 备注请填写：网站反馈
发表机构由 AI 从论文文本抽取，如发现错误，欢迎反馈修正建议。