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arxiv: 0902.0943 · v2 · pith:AVWVWX6Unew · submitted 2009-02-05 · 🧮 math.CA

Radial Fourier multipliers in high dimensions

classification 🧮 math.CA
keywords dimensionshighmultipliersradialcharacterizationdimensioneffectiveequation
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Given a fixed $p\neq 2$, we prove a simple and effective characterization of all radial multipliers of $\cF L^p(\Bbb R^d)$, provided that the dimension $d$ is sufficiently large. The method also yields new $L^q$ space-time regularity results for solutions of the wave equation in high dimensions.

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