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arXiv 1002.4736math.AP
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不可压Navier-斯托克斯方程整体大解的和

Sums of large global solutions to the incompressible Navier-Stokes equations

Jean-Yves Chemin, Isabelle Gallagher, Ping Zhang

摘要:

设G是生成三维不可压Navier-斯托克斯方程整体光滑解的$\dot H^{\frac 1 2}$无散度向量场的(开)集.证明了G的任意元素都可以被任意大的、光滑的、无发散的、沿一个方向缓慢变化的向量场扰动,并且如果变化足够慢,则所得到的向量场(保持任意大)是G的元素.这个结果意味着通过G中的任何一点都有无数个包含在G中的任意长的线段。

英文摘要:

Let G be the (open) set of~$\dot H^{\frac 1 2}$ divergence free vector fields generating a global smooth solution to the three dimensional incompressible Navier-Stokes equations. We prove that any element of G can be perturbed by an arbitrarily large, smooth divergence free vector field which varies slowly in one direction, and the resulting vector field (which remains arbitrarily large) is an element of G if the variation is slow enough. This result implies that through any point in G passes an uncountable number of arbitrarily long segments included in G.

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。

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