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Infinite norm of the derivative of the solution operator of Euler equations

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 نشر من قبل Y. Charles Li
 تاريخ النشر 2020
  مجال البحث فيزياء
والبحث باللغة English
 تأليف Y. Charles Li




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Through a simple and elegant argument, we prove that the norm of the derivative of the solution operator of Euler equations posed in the Sobolev space $H^n$, along any base solution that is in $H^n$ but not in $H^{n+1}$, is infinite. We also review the counterpart of this result for Navier-Stokes equations at high Reynolds number from the perspective of fully developed turbulence. Finally we present a few examples and numerical simulations to show a more complete picture of the so-called rough dependence upon initial data.



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