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In this paper, we classified the surfaces whose canonical maps are abelian covers over $\mathbb{P}^2$. Moveover, we construct a new Campedelli surface with fundamental group $\mathbb{Z}_2^{\oplus 3}$ and give defining equations for…

Algebraic Geometry · Mathematics 2014-06-20 Rong Du , Yun Gao

We study automorphism groups of real del Pezzo surfaces, concentrating on finite groups acting minimally on them. As a result, we obtain a vast part of classification of finite subgroups in the real plane Cremona group.

Algebraic Geometry · Mathematics 2021-12-14 Egor Yasinsky

We solve categorical Torelli problem for quartic del Pezzo surfaces. That is, we prove that a del Pezzo surface of degree $4$ can be canonically reconstructed from its Kuznetsov component, which is the orthogonal subcategory to the…

Algebraic Geometry · Mathematics 2026-03-30 Alexey Elagin

We classify equivariantly Gorenstein log del Pezzo surfaces with boundaries at infinity and with finite group actions such that the quotient surface modulo the finite group has Picard number one. We also determine the corresponding finite…

Algebraic Geometry · Mathematics 2007-05-23 Masayoshi Miyanishi , De-Qi Zhang

We prove that every del Pezzo surface of degree two over a finite field is unirational, building on the work of Manin and an extension by Salgado, Testa, and V\'arilly-Alvarado, who had proved this for all but three surfaces. Over general…

Algebraic Geometry · Mathematics 2015-05-07 Dino Festi , Ronald van Luijk

We prove, via an "arithmetic surjectivity" approach inspired by work of Denef, that weak weak approximation holds for surfaces with two conic fibrations satisfying a general assumption. In particular, weak weak approximation holds for…

Algebraic Geometry · Mathematics 2023-05-08 Julian Lawrence Demeio , Sam Streeter

We investigate Manin's conjecture for del Pezzo surfaces of degree five with a conic bundle structure, proving matching upper and lower bounds, and the full conjecture in the Galois general case.

Number Theory · Mathematics 2025-06-04 D. R. Heath-Brown , Daniel Loughran

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

Let S be a split family of del Pezzo surfaces over a discrete valuation ring such that the general fiber is smooth and the special fiber has ADE-singularities. Let G be the reductive group given by the root system of these singularities. We…

Algebraic Geometry · Mathematics 2020-09-21 Ulrich Derenthal , Norbert Hoffmann

Motivated by homological mirror symmetry, this paper constructs explicit full exceptional collections for the canonical stacks associated with the series of log del Pezzo surfaces constructed by Johnson and Koll\'ar. These surfaces have…

Algebraic Geometry · Mathematics 2023-09-27 Giulia Gugiatti , Franco Rota

We completely determine the existence of anticanonical polar cylinders in quasi-smooth log del Pezzo surfaces of index one.

Algebraic Geometry · Mathematics 2025-06-03 In-Kyun Kim , Jaehyun Kim , Joonyeong Won

A cover of normal varieties is exceptional over a finite field if the map on points over infinitely many extensions of the field is one-one. A cover over a number field is exceptional if it is exceptional over infinitely many residue class…

Number Theory · Mathematics 2009-10-20 Michael D. Fried

We classify del Pezzo surfaces with Du Val singularities that have infinite automorphism groups, and describe the connected components of their automorphisms groups.

Algebraic Geometry · Mathematics 2020-10-02 Ivan Cheltsov , Yuri Prokhorov

We consider a real del Pezzo surface without points. We prove that the same surface over complex numbers field $\mathbb{C}$ has Picard number is at least two.

Algebraic Geometry · Mathematics 2024-12-17 Grigory Belousov

Let $k$ be a field of characteristic $0$. In this paper we describe a classification of smooth log K3 surfaces $X$ over $k$ whose geometric Picard group is trivial and which can be compactified into del Pezzo surfaces. We show that such an…

Algebraic Geometry · Mathematics 2015-11-05 Yonatan Harpaz

We prove that the integral points are potentially Zariski dense in the complement of a reduced effective singular anticanonical divisor in a smooth del Pezzo surface, with the exception of $\mathbb{P}^2$ minus three concurrent lines (for…

Algebraic Geometry · Mathematics 2023-03-23 Simone Coccia

We introduce a concept of minimality for Fano polygons. We show that, up to mutation, there are only finitely many Fano polygons with given singularity content, and give an algorithm to determine the mutation-equivalence classes of such…

Algebraic Geometry · Mathematics 2022-10-28 Alexander Kasprzyk , Benjamin Nill , Thomas Prince

We estimate $\delta$-invariants of some singular del Pezzo surfaces with quotient singularities, which we studied ten years ago. As a result, we show that each of these surfaces admits an orbifold K\"ahler--Einstein metric.

Algebraic Geometry · Mathematics 2020-01-22 Ivan Cheltsov , Jihun Park , Constantin Shramov

We state a number of conjectures that together allow one to classify a broad class of del Pezzo surfaces with cyclic quotient singularities using mirror symmetry. We prove our conjectures in the simplest cases. The conjectures relate…

Structure theorems for exceptional objects and exceptional collections of the bounded derived category of coherent sheaves on del Pezzo surfaces are established by Kuleshov and Orlov. In this paper we propose conjectures which generalize…

Algebraic Geometry · Mathematics 2021-07-08 Akira Ishii , Shinnosuke Okawa , Hokuto Uehara
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