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Related papers: On the small cap decoupling for the moment curve i…

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We prove sharp small cap decoupling estimates for the moment curve in $\mathbb{R}^3$. Our formulation of the small caps is motivated by a conjecture about $L^p$ estimates for exponential sums from the small cap decoupling paper of Demeter,…

Classical Analysis and ODEs · Mathematics 2024-11-27 Larry Guth , Dominique Maldague

We develop a toolbox for proving decouplings into boxes with diameter smaller than the canonical scale. As an application of this new technique, we solve three problems for which earlier methods have failed. We start by verifying the small…

Classical Analysis and ODEs · Mathematics 2020-07-09 Ciprian Demeter , Larry Guth , Hong Wang

We prove a sharp $l^{10}(L^{10})$ decoupling for the moment curve in $\mathbb{R}^3$. The proof involves a two-step decoupling combined with new incidence estimates for planks, tubes and plates.

Classical Analysis and ODEs · Mathematics 2020-11-23 Hongki Jung

We use high-low frequency methods developed in the context of decoupling to prove sharp (up to $C_\epsilon R^\epsilon$) square function estimates for the moment curve $(t,t^2,\ldots,t^n)$ in $\mathbb{R}^n$. Our inductive scheme incorporates…

Classical Analysis and ODEs · Mathematics 2023-09-26 Larry Guth , Dominique Maldague

We use the high-low method and wavepacket pruning to prove new small-cap decoupling estimates for the moment curve in $\mathbb{R}^4$. As an application, we verify a conjecture of Demeter regarding the $L^{12}$ square-root cancellation of…

Classical Analysis and ODEs · Mathematics 2026-05-27 Jacob Glidewell

Using a bilinear method that is inspired by the method of efficient congruencing of Wooley [Woo16], we prove a sharp decoupling inequality for the moment curve in $\mathbb{R}^3$.

Classical Analysis and ODEs · Mathematics 2020-12-23 Shaoming Guo , Zane Kun Li , Po-Lam Yung

We obtain sharp small cap decoupling inequalities associated to the moment curve for certain range of exponents $p$. Our method is based on the bilinearization argument due to Bourgain and Bourgain-Demeter. Our result generalizes theirs to…

Classical Analysis and ODEs · Mathematics 2021-05-04 Changkeun Oh

We prove sharp bounds for the size of superlevel sets $\{x\in \mathbb{R}^2:|f(x)|>\alpha\}$ where $\alpha>0$ and $f:\mathbb{R}^2\to\mathbb{C}$ is a Schwartz function with Fourier transform supported in an $R^{-1}$-neighborhood of the…

Classical Analysis and ODEs · Mathematics 2021-07-29 Yuqiu Fu , Larry Guth , Dominique Maldague

We prove a sharp (up to $C_\epsilon R^\epsilon$) $L^7$ square function estimate for the moment curve in $\mathbb{R}^3$.

Classical Analysis and ODEs · Mathematics 2022-11-01 Dominique Maldague

We expand the class of curves $(\varphi_1(t),\varphi_2(t)),\ t\in[0,1]$ for which the $\ell^2$ decoupling conjecture holds for $2\leq p\leq 6$. Our class of curves includes all real-analytic regular curves with isolated points of vanishing…

Classical Analysis and ODEs · Mathematics 2019-06-11 Chandan Biswas , Maxim Gilula , Linhan Li , Jeremy Schwend , Yakun Xi

We prove sharp $\ell^2$-decoupling inequalities for non-degenerate complex curves via the bilinear argument due to Guo--Li--Yung--Zorin-Kranich, which in turn is inspired by the efficient congruencing argument of Wooley. Secondly,…

Classical Analysis and ODEs · Mathematics 2026-03-03 Robert Schippa

We extend the small cap decoupling program established by Demeter, Guth, and Want to paraboloids in $\mathbb{R}^n$ for some range of $p$.

Classical Analysis and ODEs · Mathematics 2024-03-28 Larry Guth , Dominique Maldague , Changkeun Oh

We prove two types of results. First we develop the decoupling theory for hypersurfaces with nonzero Gaussian curvature, which extends our earlier work from \cite{BD3}. As a consequence of this we obtain sharp (up to $\epsilon$ losses)…

Classical Analysis and ODEs · Mathematics 2015-09-04 Jean Bourgain , Ciprian Demeter

This simple note lays out a few observations which are well known in many ways but may not have been said in quite this way before. The basic idea is that when comparing two different Markov chains it is useful to couple them is such a way…

Probability · Mathematics 2017-11-16 James E. Johndrow , Jonathan C. Mattingly

For each $d\geq 0$, we prove decoupling inequalities in $\mathbb R^3$ for the graphs of all bivariate polynomials of degree at most $d$ with bounded coefficients, with the decoupling constant depending uniformly in $d$ but not the…

Classical Analysis and ODEs · Mathematics 2024-11-01 Jianhui Li , Tongou Yang

We prove a sharp decoupling for a class of three dimensional manifolds in $\mathbb{R}^5$.

Classical Analysis and ODEs · Mathematics 2019-02-05 Ciprian Demeter , Shaoming Guo , Fangye Shi

This paper extends Bombieri and Pila's estimate of lattice points on curves to arbitrary finite sets by incorporating considerations of minimal separation and the doubling constant. We derive the estimate by establishing the $\ell^2$…

Number Theory · Mathematics 2025-02-06 Daishi Kiyohara

We extend the $l^2(L^p)$ decoupling theorem of Bourgain-Demeter to the full class of developable surfaces in $\mathbb{R}^3$. This completes the $l^2$ decoupling theory of the zero Gaussian curvature surfaces that lack planar (or umbilic)…

Classical Analysis and ODEs · Mathematics 2020-02-11 Dominique Kemp

In this paper we compute the three-loop corrections to the $\beta$ function in a momentum subtraction (MOM) scheme with a massive quark. The calculation is performed in the background field formalism applying asymptotic expansions for small…

High Energy Physics - Phenomenology · Physics 2010-04-23 K. G. Chetyrkin , B. A. Kniehl , M. Steinhauser

We present a method that uses dynamic decoupling of a multi-level quantum probe to distinguish small frequency shifts that depend on $m^2_{j}$, where $m^2_{j}$ is the angular momentum of level $\left|j\right\rangle$ along the quantization…

Quantum Physics · Physics 2016-04-13 Ravid Shaniv , Nitzan Akerman , Roee Ozeri
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