A weighted dispersive estimate for Schrödinger operators in dimension two

Details A weighted dispersive estimate for Schrödinger operators in dimension two A weighted dispersive estimate for Schrödinger operators in dimension two

2012-01-31

arxiv.org/abs/1202.0050v1

Mathematics

Analysis of PDEs

23 pages

Scientific paper

Let $H=-\Delta+V$, where $V$ is a real valued potential on $\R^2$ satisfying $|V(x)|\les \la x\ra^{-3-}$. We prove that if zero is a regular point of the spectrum of $H=-\Delta+V$, then $$ \|w^{-1} e^{itH}P_{ac}f\|_{L^\infty(\R^2)}\les \f1{|t|\log^2(|t|)} \|w f\|_{L^1(\R^2)}, |t| >2, $$ with $w(x)=\log^2(2+|x|)$. This decay rate was obtained by Murata in the setting of weighted $L^2$ spaces with polynomially growing weights.

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