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PreprintCC BY-NC-SA 4.0arXiv

Strip Decoupling Inequalities for the Paraboloid in ℝ3

Abstract

Large-cap or large-ensemble decoupling inequalities were initially studied by Demeter. These are intimately connected to the reverse square-function conjecture and restriction conjecture in Fourier restriction theory. By strips, we mean a partition of the R−1-neighborhood of the paraboloid into 1× R−1/2× R−1 curved large-caps. In this article, we prove the sharp ℓ2(L10/3) decoupling estimate for strips in ℝ3. We reduce the strip decoupling inequalities to a planar incidence problem, which is dealt with via two-ends Furstenberg incidence estimates. Our method is inspired by Wang--Wu on the restriction conjecture.

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BibTeX
@misc{glidewell2026strip,
  title = {{Strip Decoupling Inequalities for the Paraboloid in $\mathbbR^3$}},
  author = {Jacob Glidewell},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.01567},
  eprint = {2610.01567},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.01567},
  note = {CC BY-NC-SA 4.0},
}
RIS
TY  - UNPB
TI  - Strip Decoupling Inequalities for the Paraboloid in ℝ^3
AU  - Jacob Glidewell
PY  - 2026
DA  - 2026/10/01
PB  - arXiv
DO  - 10.48550/arxiv.2610.01567
UR  - https://arxiv.org/abs/2610.01567
AB  - Large-cap or large-ensemble decoupling inequalities were initially studied by Demeter. These are intimately connected to the reverse square-function conjecture and restriction conjecture in Fourier restriction theory. By strips, we mean a partition of the R^−1-neighborhood of the paraboloid into 1× R^−1/2× R^−1 curved large-caps. In this article, we prove the sharp ℓ^2(L^10/3) decoupling estimate for strips in ℝ^3. We reduce the strip decoupling inequalities to a planar incidence problem, which is dealt with via two-ends Furstenberg incidence estimates. Our method is inspired by Wang--Wu on the restriction conjecture.
ER  -