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Fourier restriction to hyperbolic rectangles and an application

Kaiwen Jin

math.CAarXiv:2608.09871

Abstract

In this article, we study the Lebesgue space inequalities for extension operators associated with hyperbolic surfaces over rectangular regions. We characterize the corresponding operator norms in terms of the side-lengths. As an application, we present new restriction estimates for a class of hypersurfaces with additive structure.

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