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On analyticity and temporal decay rates of solutions to the viscous resistive Hall-MHD system

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 نشر من قبل Shangkun Weng
 تاريخ النشر 2014
  مجال البحث
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 تأليف Shangkun Weng




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We address the analyticity and large time decay rates for strong solutions of the Hall-MHD equations. By Gevrey estimates, we show that the strong solution with small initial date in $H^r(mathbb{R}^3)$ with $r>f 52$ becomes analytic immediately after $t>0$, and the radius of analyticity will grow like $sqrt{t}$ in time. Upper and lower bounds on the decay of higher order derivatives are also obtained, which extends the previous work by Chae and Schonbek (J. Differential Equations 255 (2013), 3971--3982).



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