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<top_article>
<mrnumber>MR</mrnumber>
<author>Reinhard FARWIG, Yoshikazu GIGA and Pen-Yuan HSU</author>
<author_utf8>Reinhard FARWIG, Yoshikazu GIGA and Pen-Yuan HSU</author_utf8>
<title>Initial Values for the Navier-Stokes Equations in Spaces with Weights in Time</title>
<journal>Funkcialaj Ekvacioj. Serio Internacia</journal>
<volume>59</volume>
<year>2016</year>
<page>199--216</page>
<url_pdf>http://fe.math.kobe-u.ac.jp/FE/FullPapers/59-2/59_199.pdf</url_pdf>
<mathsci_link>http://www.ams.org/mathscinet-getitem?mr=MR</mathsci_link>
<abstract>We consider the nonstationary Navier-Stokes system in a smooth bounded domain $\Omega\subset\mathbf{R}^3$ with initial value $u_0\in L^2_\sigma(\Omega)$. It is an important question to determine the optimal initial value condition in order to prove the existence of a unique local strong solution satisfying Serrin's condition. In this paper, we introduce a weighted Serrin condition that yields a necessary and sufficient initial value condition to guarantee the existence of local strong solutions $u(\cdot)$ contained in the weighted Serrin class $\int_0^T(\tau^\alpha\|u(\tau)\|_q)^s d\tau&#60;\infty$ with $2/s+3/q=1-2\alpha$, $0&#60;\alpha&#60;1/2$. Moreover, we prove a restricted weak-strong uniqueness theorem in this Serrin class.</abstract>
<keywords>Instationary Navier-Stokes system, Initial values, Local strong solutions, Weighted Serrin condition, Well-chosen weak solutions, Restricted Serrin's uniqueness theorem.</keywords>
<subject>35Q30, 76D05.</subject>
<fesi_info>
  <FILE>59-199</FILE>
  <YEAR>2016</YEAR>
  <TITLE>Initial Values for the Navier-Stokes Equations in Spaces with Weights in Time</TITLE>
  <AUTHOR>Reinhard FARWIG, Yoshikazu GIGA and Pen-Yuan HSU</AUTHOR>
  <AUTHOR_utf8>Reinhard FARWIG, Yoshikazu GIGA and Pen-Yuan HSU</AUTHOR_utf8>
</fesi_info>

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</top_article>
