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arXiv · 1109.1455

Counting rational points on smooth cyclic covers

D. R. Heath-Brown·Lillian B. Pierce
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Abstract

A conjecture of Serre concerns the number of rational points of bounded height on a finite cover of projective space P^{n-1}. In this paper, we achieve Serre's conjecture in the special case of smooth cyclic covers of any degree when n is at least 10, and surpass it for covers of degree 3 or higher when n > 10. This is achieved by a new bound for the number of perfect r-th power values of a polynomial with nonsingular leading form, obtained via a combination of an r-th power sieve and the q-analogue of van der Corput's method.

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D. R. Heath-Brown, Lillian B. Pierce. 2011-09-07. Counting rational points on smooth cyclic covers. https://arxiv.org/abs/1109.1455

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