engleski

Fourier restriction implies maximal and variational Fourier restriction

We give an abstract argument that an a priori Fourier restriction estimate for a certain choice of exponents automatically implies maximal and variational Fourier restriction estimates. These, in turn, provide pointwise and quantitative interpretations of restriction of the Fourier transform to the hypersurface in question.

Fourier restriction ; maximal function ; variational estimate ; Christ-Kiselev lemma

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