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Manin's conjecture is proved for a split del Pezzo surface of degree 5 with a singularity of type A_2.

Number Theory · Mathematics 2007-10-09 Ulrich Derenthal

A conjecture of Manin predicts the asymptotic distribution of rational points of bounded height on Fano varieties. In this paper we use conic bundles to obtain correct lower bounds or a wide class of surfaces over number fields for which…

Number Theory · Mathematics 2018-07-17 Christopher Frei , Daniel Loughran , Efthymios Sofos

We prove Manin's conjecture for a split singular quartic del Pezzo surface with singularity type $2\Aone$ and eight lines. This is achieved by equipping the surface with a conic bundle structure. To handle the sum over the family of conics,…

Number Theory · Mathematics 2014-02-26 Daniel Loughran

An asymptotic formula is established for the number of rational points of bounded height on a non-singular quartic del Pezzo surface with a conic bundle structure.

Number Theory · Mathematics 2019-12-19 T. D. Browning , R. de la Bretèche

This paper surveys recent progress towards the Manin conjecture for (singular and non-singular) del Pezzo surfaces. To illustrate some of the techniques available, an upper bound of the expected order of magnitude is established for a…

Number Theory · Mathematics 2007-05-23 T. D. Browning

This paper establishes the Manin conjecture for a certain non-split singular del Pezzo surface of degree four, via an analysis of the corresponding height zeta function.

Number Theory · Mathematics 2007-06-13 R. de la Breteche , T. D. Browning

The Manin-Peyre conjecture is established for a split singular quintic del Pezzo surface with singularity type $\mathbf{A}_2$ and two split singular quartic del Pezzo surfaces with singularity types $\mathbf{A}_3+\mathbf{A}_1$ and…

Number Theory · Mathematics 2023-09-06 Xiaodong Zhao

We prove Manin's conjecture for a del Pezzo surface of degree six which has one singularity of type $\mathbf{A}_2$. Moreover, we achieve a meromorphic continuation and explicit expression of the associated height zeta function.

Number Theory · Mathematics 2010-09-14 Daniel Loughran

The Manin conjecture is established for a split singular del Pezzo surface of degree four, with singularity type A_4.

Number Theory · Mathematics 2009-01-27 T. D. Browning , U. Derenthal

We establish Manin's conjecture for a quartic del Pezzo surface split over Q and having a singularity of type A_3 and containing exactly four lines. It is the first example of split singular quartic del Pezzo surface whose universal torsor…

Number Theory · Mathematics 2013-08-01 Pierre Le Boudec

We give a relatively short and elementary proof of Manin's conjecture for split smooth quintic del Pezzo surfaces over the rational numbers.

Number Theory · Mathematics 2025-05-12 Christian Bernert , Ulrich Derenthal

Let X be a surface whose Cox ring has a single relation satisfying moreover a kind of linearity property. Under a simple assumption, we show that the geometric Manin's conjectures hold for some degrees lying in the dual of the effective…

Algebraic Geometry · Mathematics 2012-05-17 David Bourqui

Given a nonsingular quartic del Pezzo surface, a conjecture of Manin predicts the density of rational points on the open subset of the surface formed by deleting the lines. We prove that this prediction is of the correct order of magnitude…

Algebraic Geometry · Mathematics 2015-05-13 Fok-Shuen Leung

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 prove Manin's conjecture for two del Pezzo surfaces of degree four which are split over Q and whose singularity types are respectively 3A_1 and A_1+A_2. For this, we study a certain restricted divisor function and use a result about the…

Number Theory · Mathematics 2011-11-22 Pierre Le Boudec

We prove a version of Manin's conjecture for a certain family of intrinsic quadrics, the base field being a global field of positive characteristic. We also explain how a very slight variation of the method we use allows to establish the…

Number Theory · Mathematics 2010-07-28 David Bourqui

We study minimal del Pezzo surfaces of degree 1 with a conic bundle over a finite field $\mathbb{F}_q$ according to the action of the absolute Galois group on the singular fibers (which is known as their type). We give a lower bound on the…

Algebraic Geometry · Mathematics 2026-03-23 Manoy T. Trip

In this paper the height zeta function associated to a certain singular del Pezzo surface of degree four is studied. If $U$ denotes the open subset formed by deleting the unique line from this surface, then an asymptotic formula for the…

Number Theory · Mathematics 2007-05-23 R. de la Breteche , T. D. Browning

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

We give upper bounds for the number of rational points of bounded anti-canonical height on del Pezzo surfaces of degree at most five over any global field whose characteristic is not equal to two or three. For number fields these results…

Number Theory · Mathematics 2024-01-11 Jakob Glas , Leonhard Hochfilzer
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