Revista Matemática Iberoamericana


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Published online first: 2019-03-05
DOI: 10.4171/rmi/1057

A polynomial Carleson operator along the paraboloid

Lillian B. Pierce[1] and Po-Lam Yung[2]

(1) Duke University, Durham, USA
(2) The Chinese University of Hong Kong, Hong Kong

In this work we extend consideration of the well-known polynomial Carleson operator to the setting of a Radon transform acting along the paraboloid in $\mathbb R^{n+1}$ for $n \geq 2$. Inspired by work of Stein and Wainger on the original polynomial Carleson operator, we develop a method to treat polynomial Carleson operators along the paraboloid via van der Corput estimates. A key new step in the approach of this paper is to approximate a related maximal oscillatory integral operator along the paraboloid by a smoother operator, which we accomplish via a Littlewood–Paley decomposition and the use of a square function. The most technical aspect then arises in the derivation of bounds for oscillatory integrals involving integration over lower-dimensional sets. The final theorem applies to polynomial Carleson operators with phase belonging to a certain restricted class of polynomials with no linear terms and whose homogeneous quadratic part is not a constant multiple of the defining function $|y|^2$ of the paraboloid in $\mathbb R^{n+1}$.

Keywords: Carleson operator, Radon transform, oscillatory integrals, square function, van der Corput estimates

Pierce Lillian, Yung Po-Lam: A polynomial Carleson operator along the paraboloid. Rev. Mat. Iberoam. Electronically published on March 5, 2019. doi: 10.4171/rmi/1057 (to appear in print)