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Uniform bound for solutions of semilinear wave equations in $mathbb{R}^{1+3}$

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 نشر من قبل Shiwu Yang
 تاريخ النشر 2019
  مجال البحث
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 تأليف Shiwu Yang




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We prove that solution of defocusing semilinear wave equation in $mathbb{R}^{1+3}$ with pure power nonlinearity is uniformly bounded for all $frac{3}{2}<pleq 2$ with sufficiently smooth and localized data. The result relies on the $r$-weighted energy estimate originally introduced by Dafermos and Rodnianski. This appears to be the first result regarding the global asymptotic property for the solution with small power $p$ under 2.

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