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We formulate a conjecture on the number of integral points of bounded height on log Fano varieties in analogy with Manin's conjecture on the number of rational points of bounded height on Fano varieties. We also give a prediction for the…

Number Theory · Mathematics 2025-08-04 Tim Santens

We characterise integral points of bounded log-anticanonical height on a quartic del Pezzo surface of singularity type $\mathbf{A}_3$ over imaginary quadratic fields with respect to its singularity and its lines. Furthermore, we count these…

Number Theory · Mathematics 2023-07-25 Judith Ortmann

Here we describe the distribution of rational points on the Hilbert scheme of two points in the projective plane. More specifically, we explicitly describe a two-parameter family of height functions $H_{s, t}$, such that the height function…

Number Theory · Mathematics 2022-09-28 Jesse Leo Kass , Frank Thorne

We consider smooth projective curves C/$\mathbb{F}$ over a finite field and their symmetric squares $C^{(2)}$. For a global function field $K/\mathbb{F}$, we study the $K$-rational points of $C^{(2)}$. We describe the adelic points of…

Number Theory · Mathematics 2021-12-01 Jennifer Berg , José Felipe Voloch

We prove a version of Manin's conjecture (over $\mathbb{F}_{q}$ for $q$ large) and the Cohen--Jones--Segal conjecture (over $\mathbb{C}$) for maps from rational curves to split quartic del Pezzo surfaces. The proofs share a common method…

Algebraic Geometry · Mathematics 2025-06-23 Ronno Das , Brian Lehmann , Sho Tanimoto , Philip Tosteson

We propose and compare various techiques available to produce smooth cubic hypersurfaces over a non-algebraically-closed field which have rational points but which are not stably rational over their ground field.

Algebraic Geometry · Mathematics 2016-12-30 Jean-Louis Colliot-Thélène

In this article we establish an asymptotic formula for the number of rational points, with bounded denominators, within a given distance to a compact submanifold $\mathcal{M}$ of $\mathbb{R}^M$ with a certain curvature condition. Our result…

Number Theory · Mathematics 2021-03-10 D. Schindler , S. Yamagishi

We present a new proof of the Manin-Mumford conjecture about torsion points on algebraic subvarieties of abelian varieties. Our principle, which admits other applications, is to view torsion points as rational points on a complex torus and…

Number Theory · Mathematics 2008-02-28 Jonathan Pila , Umberto Zannier

We prove Manin's conjecture on the asymptotic behavior of the number of rational points of bounded anticanonical height for a spherical threefold with canonical singularities and two infinite families of spherical threefolds with log…

Number Theory · Mathematics 2018-10-18 Ulrich Derenthal , Giuliano Gagliardi

In characteristic $p>0$ and for $q$ a power of $p$, we compute the number of nonplanar rational curves of arbitrary degrees on a smooth Hermitian surface of degree $q+1$ under the assumption that the curves have a parametrization given by…

Algebraic Geometry · Mathematics 2020-03-31 Norifumi Ojiro

We prove the following special case of Mazur's conjecture on the topology of rational points. Let $E$ be an elliptic curve over $\mathbb{Q}$ with $j$-invariant $1728$. For a class of elliptic pencils which are quadratic twists of $E$ by…

Algebraic Geometry · Mathematics 2023-05-22 Damián Gvirtz-Chen

We establish Manin's conjecture for a cubic surface split over Q and whose singularity type is 2A_2+A_1. For this, we make use of a deep result about the equidistribution of the values of a certain restricted divisor function in three…

Number Theory · Mathematics 2015-05-28 Pierre Le Boudec

Motivated by a recent question of Peyre, we apply the Hardy-Littlewood circle method to count "sufficiently free" rational points of bounded height on arbitrary smooth projective hypersurfaces of low degree that are defined over the…

Number Theory · Mathematics 2020-02-20 Tim Browning , Will Sawin

We give a counterexample to the following conjecture: the set of isolated periodic points of an automorphism of degree at least two on an affine space is a set of bounded height. As a positive result, we prove that any cohomologically…

Algebraic Geometry · Mathematics 2026-03-11 Yohsuke Matsuzawa , Kaoru Sano

Let $\mathscr{M}$ be a compact submanifold of $\mathbb{R}^{M}$. In this article we establish an asymptotic formula for the number of rational points within a given distance to $\mathscr{M}$ and with bounded denominators under the assumption…

Number Theory · Mathematics 2022-05-13 Florian Munkelt

We resolve Manin's conjecture for all Ch\^atelet surfaces over $\mathbb{Q}$.

Number Theory · Mathematics 2024-09-27 Katharine Woo

We present an algorithm that covers any given rational ruled surface with two rational parametrizations. In addition, we present an algorithm that transforms any rational surface parametrization into a new rational surface parametrization…

Algebraic Geometry · Mathematics 2014-10-08 J. Rafael Sendra , David Sevilla , Carlos Villarino

Building on work by Chabauty from 1941, Coleman proved in 1985 an explicit bound for the number of rational points of a curve $C$ of genus $g\ge 2$ defined over a number field $F$, with Jacobian of rank at most $g-1$. Namely, in the case…

Number Theory · Mathematics 2021-02-12 Jerson Caro , Hector Pasten

Silverman proved a height inequality for jointly regular family of rational maps and the author improved it for jointly regular pairs. In this paper, we provide the same improvement for jointly regular family; if S is a jointly regular set…

Number Theory · Mathematics 2010-04-27 ChongGyu Lee

We establish asymptotic formulas for counting rational points near finite type curves on the plane, generalizing Huang's result.

Number Theory · Mathematics 2026-05-15 Mingfeng Chen