Variational bounds for a dyadic model of the bilinear Hilbert transform
Variational bounds for a dyadic model of the bilinear Hilbert transform
复制标题
双线性希尔伯特变换二元模型的变分界
DOI:
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发表时间:
2012
期刊:
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通讯作者:
E. Palsson
中科院分区:
文献类型:
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作者:
Yen Do;Richard Oberlin;E. Palsson
We prove variation-norm estimates for the Walsh model of the truncated bilinear Hilbert transform, extending related results of Lacey, Thiele, and Demeter. The proof uses analysis on the Walsh phase plane and two new ingredients: (i) a variational extension of a lemma of Bourgain by Nazarov-Oberlin-Thiele, and (ii) a variation-norm Rademacher-Menshov theorem of Lewko-Lewko.