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arXiv · 1708.01326

On bilinear Hilbert transform along two polynomials

Dong Dong
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Abstract

We prove that the bilinear Hilbert transform along two polynomials $B_{P,Q}(f,g)(x)=\int_{\mathbb{R}}f(x-P(t))g(x-Q(t))\frac{dt}{t}$ is bounded from $L^p \times L^q$ to $L^r$ for a large range of $(p,q,r)$, as long as the polynomials $P$ and $Q$ have distinct leading and trailing degrees. The same boundedness property holds for the corresponding bilinear maximal function $\mathcal{M}_{P,Q}(f,g)(x)=\sup_{ε>0}\frac{1}{2ε}\int_{-ε}^ε |f(x-P(t))g(x-Q(t))|dt$.

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Dong Dong. 2018-12-21. On bilinear Hilbert transform along two polynomials. https://arxiv.org/abs/1708.01326

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