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arXiv 2008.00274math.AP
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带输运噪声的三维随机原方程的适定性

Well-Posedness of the 3D Stochastic Primitive Equations with Transport Noise

Zdzisław Brzeźniak, Jakub Slavík

摘要:

我们证明了在乘性梯度相关白噪声驱动下的随机三维原始方程,在一定的噪声增长假设下,其上下边界条件为物理边界条件或Neumann边界条件,两侧边界条件为Dirichlet边界条件,在随机意义下和PDE意义下都存在唯一的最大强解.对于后者的边界条件的整体存在性建立使用的参数的基础上分解的垂直速度的正压和斜压模式和迭代的停时参数。一个显式的例子,非平凡的无穷维噪声取决于水平速度的水平梯度的垂直平均值。

英文摘要:

We show that that the stochastic 3D primitive equations with either the physical boundary conditions or Neumann boundary conditions on the top and bottom and Dirichlet boundary condition on the sides driven by multiplicative gradient-dependent white noise have unique maximal strong solutions both in stochastic and PDE sense under certain assumptions on the growth of the noise. For the latter boundary conditions global existence is established using an argument based on decomposition of vertical velocity to barotropic and baroclinic modes and an iterated stopping time argument. An explicit example of non-trivial infinite dimensional noise depending on the vertical average of the horizontal gradient of horizontal velocity is presented.

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