Subconvex $L^p$-sets, Weyl's inequality, and equidistribution
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866909753212403712 |
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| author | Wooley, Trevor D. |
| author_facet | Wooley, Trevor D. |
| contents | We examine sets $\mathscr A$ of natural numbers having the property that for some real number $p\in (0,2)$, one has the subconvex bound $$\int_0^1 \Bigl| \sum_{n\in \mathscr A\cap [1,N]}e(nα)\Bigr|^p\, {\rm d}α\ll N^{-1}|\mathscr A\cap [1,N]|^p.$$ We show that exponential sums over such sets satisfy inequalities analogous to Weyl's inequality, and in many circumstances of the same strength as classical versions of Weyl's bound. We also examine equidistribution of polynomials modulo $1$ in which the summands are restricted to these subconvex $L^p$-sets. In addition, we describe applications to problems involving character sums and averages of arithmetic functions. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2508_13384 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Subconvex $L^p$-sets, Weyl's inequality, and equidistribution Wooley, Trevor D. Number Theory 11L07, 11L15, 11J71, 11P55, 42A32 We examine sets $\mathscr A$ of natural numbers having the property that for some real number $p\in (0,2)$, one has the subconvex bound $$\int_0^1 \Bigl| \sum_{n\in \mathscr A\cap [1,N]}e(nα)\Bigr|^p\, {\rm d}α\ll N^{-1}|\mathscr A\cap [1,N]|^p.$$ We show that exponential sums over such sets satisfy inequalities analogous to Weyl's inequality, and in many circumstances of the same strength as classical versions of Weyl's bound. We also examine equidistribution of polynomials modulo $1$ in which the summands are restricted to these subconvex $L^p$-sets. In addition, we describe applications to problems involving character sums and averages of arithmetic functions. |
| title | Subconvex $L^p$-sets, Weyl's inequality, and equidistribution |
| topic | Number Theory 11L07, 11L15, 11J71, 11P55, 42A32 |
| url | https://arxiv.org/abs/2508.13384 |