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We prove Manin's conjecture for four singular quartic del Pezzo surfaces over imaginary quadratic number fields, using the universal torsor method.

Number Theory · Mathematics 2019-02-20 Ulrich Derenthal , Christopher Frei

A conjecture of Manin predicts the distribution of rational points on Fano varieties. We provide a framework for proofs of Manin's conjecture for del Pezzo surfaces over imaginary quadratic fields, using universal torsors. Some of our tools…

Number Theory · Mathematics 2013-04-15 Ulrich Derenthal , Christopher Frei

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

Manin's conjecture predicts the asymptotic behavior of the number of rational points of bounded height on algebraic varieties. For toric varieties, it was proved by Batyrev and Tschinkel via height zeta functions and an application of the…

Number Theory · Mathematics 2023-01-10 Ulrich Derenthal , Felix Janda

Manin's conjecture for the asymptotic behavior of the number of rational points of bounded height on del Pezzo surfaces can be approached through universal torsors. We prove several auxiliary results for the estimation of the number of…

Number Theory · Mathematics 2009-02-13 Ulrich Derenthal

Manin's conjecture predicts the distribution of rational points on Fano varieties. Using explicit parameterizations of rational points by integral points on universal torsors and lattice-point-counting techniques, it was proved for several…

Number Theory · Mathematics 2015-07-21 Christopher Frei , Marta Pieropan

We prove an asymptotic formula conjectured by Manin for the number of $K$-rational points of bounded height with respect to the anticanonical line bundle for arbitrary smooth projective toric varieties over a number field $K$.

alg-geom · Mathematics 2008-02-03 Victor V. Batyrev , Yuri Tschinkel

Using the universal torsor method due to Salberger, we study the approximation of a general fixed point by rational points on split toric varieties. We prove that under certain geometric hypothesis the best approximations (in the sense of…

Number Theory · Mathematics 2025-08-05 Zhizhong Huang

We discuss Manin's conjecture concerning the distribution of rational points of bounded height on Del Pezzo surfaces, and its refinement by Peyre, and explain applications of universal torsors to counting problems. To illustrate the method,…

Number Theory · Mathematics 2007-05-23 Ulrich Derenthal , Yuri Tschinkel

A conjecture of Manin predicts the distribution of K-rational points on certain algebraic varieties defined over a number field K. In recent years, a method using universal torsors has been successfully applied to several hard special cases…

Number Theory · Mathematics 2013-11-05 Christopher Frei

We prove Manin's conjecture for split smooth quintic del Pezzo surfaces over arbitrary number fields with respect to fairly general anticanonical height functions. After passing to universal torsors, we first show that we may restrict the…

Number Theory · Mathematics 2025-09-25 Christian Bernert , Ulrich Derenthal

We study the multi-height distribution of rational points of smooth, projective and split toric varieties over $\mathbf{Q}$ using the lift of the number of points to universal torsors.

Number Theory · Mathematics 2026-03-16 Nicolas Bongiorno

In this paper I verify Manin's conjecture for a class of rational projective toric varieties with a large class of heights other than the usual one that comes from the standard metric on projective space.

Number Theory · Mathematics 2007-11-12 Driss Essouabri

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 the Manin--Peyre equidistribution principle for smooth projective split toric varieties over the rational numbers. That is, rational points of bounded anticanonical height outside of the boundary divisors are equidistributed with…

Number Theory · Mathematics 2022-02-18 Zhizhong Huang

We estimate the growth rate of the function which counts the number of torsion points of order at most $T$ on an algebraic subvariety of the algebraic torus $\mathbb G_m^n$ over some algebraically closed field. We prove a general upper…

Number Theory · Mathematics 2022-09-26 Gerold Schefer

We combine the split torsor method and the hyperbola method for toric varieties to count rational points and Campana points of bounded height on certain subvarieties of toric varieties.

Number Theory · Mathematics 2025-09-17 Marta Pieropan , Damaris Schindler

We prove Manin's conjecture over imaginary quadratic number fields for a cubic surface with a singularity of type E_6.

Number Theory · Mathematics 2014-01-28 Ulrich Derenthal , Christopher Frei

We establish an asymptotic formula for the number of $\mathcal{M}$-points of bounded height on split toric varieties, for the height induced by any big and nef divisor class. This formula establishes new cases of the extension of Manin's…

Number Theory · Mathematics 2026-02-24 Boaz Moerman

This note proves the existence of universal rational parametrizations. The description involves homogeneous coordinates on a toric variety coming from a lattice polytope. We first describe how smooth toric varieties lead to universal…

Algebraic Geometry · Mathematics 2007-05-23 David Cox , Rimvydas Krasauskas , Mircea Mustata
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