The Bilinear Hilbert-Carleson operator along curves. The purely non-zero curvature case

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Main Authors: Bényi, Árpád, Hu, Bingyang, Lie, Victor
Format: Preprint
Published: 2025
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author Bényi, Árpád
Hu, Bingyang
Lie, Victor
author_facet Bényi, Árpád
Hu, Bingyang
Lie, Victor
contents In this paper, we provide the maximal boundedness range (up to end-points) for the Bilinear Hilbert-Carleson operator along curves in the (purely) non-zero curvature setting. More precisely, we show that the operator $$ BHC_{[\vec{a},\vecα]}(f_1,f_2)(x) := \sup_{λ\in\mathbb{R}} \left|\,p.v.\, \int_{\mathbb{R}} f_1(x - a_1 t^{α_1}) \,f_2(x - a_2 t^{α_2}) \,e^{i\,λ\,a_3 \,t^{α_3}} \,\frac{dt}{t}\right|$$ obeys the bounds $$\|BHC_{[\vec{a},\vecα]} (f_1,f_2)\|_{L^r} \lesssim_{\vec{a} \,\vecα,r,p_1,p_2} \|f_1\|_{L^{p_1}}\,\|f_2\|_{L^{p_2}}$$ whenever $\vec{a}=(a_1,a_2,a_3),\,\vecα=(α_1,α_2,α_3)\in (\mathbb{R}\setminus\{0\})^3$ with $\vecα$ having pairwise distinct coordinates and for any Hölder range $\frac{1}{p_1}+\frac{1}{p_2}=\frac{1}{r}$ with $1<p_1,p_2<\infty$ and $\frac{1}{2}<r<\infty$. This result is achieved via the Rank II LGC method introduced in arXiv:2308.10706.
format Preprint
id arxiv_https___arxiv_org_abs_2507_04467
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Bilinear Hilbert-Carleson operator along curves. The purely non-zero curvature case
Bényi, Árpád
Hu, Bingyang
Lie, Victor
Classical Analysis and ODEs
Dynamical Systems
Number Theory
42A16, 42A24, 42B15, 42B20
In this paper, we provide the maximal boundedness range (up to end-points) for the Bilinear Hilbert-Carleson operator along curves in the (purely) non-zero curvature setting. More precisely, we show that the operator $$ BHC_{[\vec{a},\vecα]}(f_1,f_2)(x) := \sup_{λ\in\mathbb{R}} \left|\,p.v.\, \int_{\mathbb{R}} f_1(x - a_1 t^{α_1}) \,f_2(x - a_2 t^{α_2}) \,e^{i\,λ\,a_3 \,t^{α_3}} \,\frac{dt}{t}\right|$$ obeys the bounds $$\|BHC_{[\vec{a},\vecα]} (f_1,f_2)\|_{L^r} \lesssim_{\vec{a} \,\vecα,r,p_1,p_2} \|f_1\|_{L^{p_1}}\,\|f_2\|_{L^{p_2}}$$ whenever $\vec{a}=(a_1,a_2,a_3),\,\vecα=(α_1,α_2,α_3)\in (\mathbb{R}\setminus\{0\})^3$ with $\vecα$ having pairwise distinct coordinates and for any Hölder range $\frac{1}{p_1}+\frac{1}{p_2}=\frac{1}{r}$ with $1<p_1,p_2<\infty$ and $\frac{1}{2}<r<\infty$. This result is achieved via the Rank II LGC method introduced in arXiv:2308.10706.
title The Bilinear Hilbert-Carleson operator along curves. The purely non-zero curvature case
topic Classical Analysis and ODEs
Dynamical Systems
Number Theory
42A16, 42A24, 42B15, 42B20
url https://arxiv.org/abs/2507.04467