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Resolvent estimates on symmetric spaces of noncompact type

机译:非紧实型对称空间的溶剂估计

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摘要

In this article we prove resolvent estimates for the Laplace-Beltrami operator or more general elliptic Fourier multipliers on symmetric spaces of noncompact type. Then the Kato theory implies time-global smoothing estimates for corresponding dispersive equations, especially the Schrodinger evolution equation. For low-frequency estimates, a pseudo-dimension appears as an upper bound of the order of elliptic Fourier multipliers. A key of the proof is to show a weighted L~2-continuity of the modified Radon transform and fractional integral operators.
机译:在本文中,我们证明了非紧型对称空间上Laplace-Beltrami算子或更广义的椭圆傅立叶乘法器的解析估计。然后,加藤理论对相应的色散方程,特别是薛定inger演化方程,进行了时全局平滑估计。对于低频估计,伪维显示为椭圆傅里叶乘数阶的上限。证明的关键是显示改进的Radon变换和分数积分算子的加权L〜2连续性。

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