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Asymptotic behavior for a Schrodinger equation with nonlinear subcritical dissipation

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 Added by Thierry Cazenave
 Publication date 2019
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and research's language is English




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We study the time-asymptotic behavior of solutions of the Schrodinger equation with nonlinear dissipation begin{equation*} partial _t u = i Delta u + lambda |u|^alpha u end{equation*} in ${mathbb R}^N $, $Ngeq1$, where $lambdain {mathbb C}$, $Re lambda <0$ and $0<alpha<frac2N$. We give a precise description of the behavior of the solutions (including decay rates in $L^2$ and $L^infty $, and asymptotic profile), for a class of arbitrarily large initial data, under the additional assumption that $alpha $ is sufficiently close to $frac2N$.



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We consider the Schrodinger equation with nonlinear dissipation begin{equation*} i partial _t u +Delta u=lambda|u|^{alpha}u end{equation*} in ${mathbb R}^N $, $Ngeq1$, where $lambdain {mathbb C} $ with $Imlambda<0$. Assuming $frac {2} {N+2}<alpha<frac2N$, we give a precise description of the long-time behavior of the solutions (including decay rates in $L^2$ and $L^infty $, and asymptotic profile), for a class of arbitrarily large initial data.
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