Hardy's uncertainty principle, convexity and Schrödinger evolutions
Hardy's uncertainty principle, convexity and Schrödinger evolutions
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DOI:
10.4171/jems/134
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发表时间:
2008-02
影响因子:
2.6
通讯作者:
L. Escauriaza;C. Kenig;G. Ponce;L. Vega
中科院分区:
文献类型:
--
作者:
L. Escauriaza;C. Kenig;G. Ponce;L. Vega
We prove the logarithmic convexity of certain quantities, which measure the quadratic exponential decay at infinity and within two characteristic hyperplanes of solutions of Schr\"odinger evolutions. As a consequence we obtain some uniqueness results that generalize (a weak form of) Hardy's version of the uncertainty principle. We also obtain corresponding results for heat evolutions