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Sharpness Results and Knapp’s Homogeneity Argument
Published online by Cambridge University Press: 20 November 2018
Abstract
We prove that the ${{L}^{2}}$ restriction theorem, and
${{L}^{p}}\,\to \,{{L}^{{{p}'}}}\,,\,\frac{1}{p}\,+\,\frac{1}{{{p}'}}\,=\,1$, boundedness of the surface averages imply certain geometric restrictions on the underlying hypersurface. We deduce that these bounds imply that a certain number of principal curvatures do not vanish.
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- Research Article
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- Copyright © Canadian Mathematical Society 2000
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