On a conjecture of Wooley and lower bounds for cubic hypersurfaces

Fuente: arXiv
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Main Authors: Kumaraswamy, V. Vinay, Rome, Nick
Format: Preprint
Published: 2024
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author Kumaraswamy, V. Vinay
Rome, Nick
author_facet Kumaraswamy, V. Vinay
Rome, Nick
contents Let $X \subset \mathbf{P}_{\mathbf{Q}}^{n-1}$ be a cubic hypersurface cut out by the vanishing of a non-degenerate rational cubic form in $n$ variables. Let $N(X,B)$ denote the number of rational points on $X$ of height at most $B$. In this article we obtain lower bounds for $N(X,B)$ for cubic hypersufaces, provided only that $n$ is large enough. In particular, we show that $N(X,B) \gg B^{n-9}$ if $n \geq 39$, thereby proving a conjecture of T. D. Wooley for non-conical cubic hypersurfaces with large enough dimension.
format Preprint
id arxiv_https___arxiv_org_abs_2405_04234
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On a conjecture of Wooley and lower bounds for cubic hypersurfaces
Kumaraswamy, V. Vinay
Rome, Nick
Number Theory
11D45, 11P55, 14G05, 11D25, 11N36
Let $X \subset \mathbf{P}_{\mathbf{Q}}^{n-1}$ be a cubic hypersurface cut out by the vanishing of a non-degenerate rational cubic form in $n$ variables. Let $N(X,B)$ denote the number of rational points on $X$ of height at most $B$. In this article we obtain lower bounds for $N(X,B)$ for cubic hypersufaces, provided only that $n$ is large enough. In particular, we show that $N(X,B) \gg B^{n-9}$ if $n \geq 39$, thereby proving a conjecture of T. D. Wooley for non-conical cubic hypersurfaces with large enough dimension.
title On a conjecture of Wooley and lower bounds for cubic hypersurfaces
topic Number Theory
11D45, 11P55, 14G05, 11D25, 11N36
url https://arxiv.org/abs/2405.04234