English

Restriction and Kakeya maximal estimates in $\mathbb{R}^4$

Classical Analysis and ODEs 2025-12-01 v1

Abstract

By combining the planebrush argument of Katz and Zahl \cite{katz21} with the decoupling-incidence method of Wang and Wu \cite{WangWu2024}, we derive new bounds for the Fourier restriction problem and the Bochner--Riesz problem, extending the range to p>2+200251p > 2 + \frac{200}{251} in R4\mathbb{R}^4. Moreover, leveraging the two-ends Furstenberg estimate in the plane, we also obtain a Kakeya maximal estimate in R4\mathbb{R}^4 at dimension 3.0543.054.

Keywords

Cite

@article{arxiv.2511.22824,
  title  = {Restriction and Kakeya maximal estimates in $\mathbb{R}^4$},
  author = {Tainara Borges and Tiklung Chan and Mingfeng Chen and Diankun Liu and Yakun Xi and Yufei Zhan},
  journal= {arXiv preprint arXiv:2511.22824},
  year   = {2025}
}
R2 v1 2026-07-01T07:58:41.737Z