Singular del Pezzo surfaces whose universal torsors are hypersurfaces

U Derenthal - Proceedings of the London Mathematical Society, 2014 - Wiley Online Library
We classify all generalized del Pezzo surfaces (that is, minimal desingularizations of
singular del Pezzo surfaces containing only rational double points) whose universal torsors …

Singular del Pezzo surfaces that are equivariant compactifications

U Derenthal, D Loughran - arXiv preprint arXiv:0910.2717, 2009 - arxiv.org
We determine which singular del Pezzo surfaces are equivariant compactifications of G_a^
2, to assist with proofs of Manin's conjecture for such surfaces. Additionally, we give an …

[图书][B] Brauer groups, Tamagawa measures, and rational points on algebraic varieties

J Jahnel - 2014 - books.google.com
The central theme of this book is the study of rational points on algebraic varieties of Fano
and intermediate type--both in terms of when such points exist and, if they do, their …

Counting imaginary quadratic points via universal torsors

U Derenthal, C Frei - Compositio Mathematica, 2014 - cambridge.org
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 …

Rational points of bounded height and the Weil restriction

D Loughran - Israel Journal of Mathematics, 2015 - Springer
Given an extension of number fields E⊂ F and a projective variety X over F, we compare the
problem of counting the number of rational points of bounded height on X with that of its Weil …

Inhomogeneous cubic congruences and rational points on del Pezzo surfaces

S Baier, TD Browning - Journal für die reine und angewandte …, 2013 - degruyter.com
Inhomogeneous cubic congruences and rational points on del Pezzo surfaces Page 1 J. reine
angew. Math. 680 (2013), 69—151 DOI 10.1515/crelle.2012.039 Journal für die reine und …

Affine congruences and rational points on a certain cubic surface

P Le Boudec - Algebra & Number Theory, 2014 - msp.org
We establish estimates for the number of solutions of certain affine congruences. These
estimates are then used to prove Manin's conjecture for a cubic surface split over ℚ whose …

Manin's conjecture for two quartic del Pezzo surfaces with 3A_1 and A_1+ A_2 singularity types

PL Boudec - arXiv preprint arXiv:1006.0691, 2010 - arxiv.org
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 …

Manin's conjecture for a cubic surface with 2A2+ A1 singularity type

P Le Boudec - … Proceedings of the Cambridge Philosophical Society, 2012 - cambridge.org
We establish Manin's conjecture for a cubic surface split over ℚ and whose singularity type
is 2A2+ A1. For this, we make use of a deep result about the equidistribution of the values of …

Exemples de comptages de courbes sur les surfaces

D Bourqui - Mathematische Annalen, 2013 - Springer
Some examples of curves countings on surfaces Let be a surface whose Cox ring has a
single relation satisfying moreover a kind of linearity property. We show that the geometric …