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In this article, we compute $\delta$-invariant of Du Val del Pezzo surfaces of degree $3$.

Algebraic Geometry · Mathematics 2025-08-26 Elena Denisova

In this article, we compute $\delta$-invariants of Du Val del Pezzo surfaces of degree 1.

Algebraic Geometry · Mathematics 2025-08-26 Elena Denisova

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

In this article, we compute $\delta$-invariants of Du Val del Pezzo surfaces of degree 2.

Algebraic Geometry · Mathematics 2025-08-26 Elena Denisova

We compute the coregularity of del Pezzo surfaces with du Val singularities. To this aim, we study the relation between del Pezzo surfaces of degree $1$ and elliptic fibrations. It turns out that del Pezzo surfaces with positive…

Algebraic Geometry · Mathematics 2026-03-04 Konstantin Loginov , Andrey Trepalin

In this article, we compute $\delta$-invariants of Du Val del Pezzo surfaces of degree $\ge 4$.

Algebraic Geometry · Mathematics 2025-08-26 Elena Denisova

We study singular del Pezzo surfaces that are quasi-smooth and well-formed weighted hypersurfaces. We give an algorithm how to classify all of them.

Algebraic Geometry · Mathematics 2025-09-03 Erik Paemurru

In this paper we study the problem of existence of orbifold Kaehler-Einstein metrics on del Pezzo surfaces of degree 1 with Du Val singular points. Moreover we compute global log canonical thresholds of del Pezzo surfaces of degree 1 with…

Algebraic Geometry · Mathematics 2009-04-19 Dimitra Kosta

In this note, we compute the Poisson cohomology groups for any Poisson Del Pezzo surface.

Mathematical Physics · Physics 2011-02-09 Wei Hong , Ping Xu

We consider del Pezzo surfaces $X$ with du Val singularities. Assume that $X$ has a $-K_X$-polar cylinder and $\deg X=1$. Let $H$ be an ample divisor. We'll prove that $X$ has a $H$-polar cylinder.

Algebraic Geometry · Mathematics 2025-12-17 Grigory Belousov , Nivedita Viswanathan

In this paper we consider the classification of singularities (Du Val) and real structures (Wall) of weak Del Pezzo surfaces from an algorithmic point of view. It is well known that the singularities of weak Del Pezzo surfaces correspond to…

Algebraic Geometry · Mathematics 2021-03-09 Niels Lubbes

In order to study integral points of bounded log-anticanonical height on weak del Pezzo surfaces, we classify weak del Pezzo pairs. As a representative example, we consider a quartic del Pezzo surface of singularity type…

Number Theory · Mathematics 2025-05-19 Ulrich Derenthal , Florian Wilsch

We classify del Pezzo surfaces with Picard number is equal to one and with four log terminal singular points.

Algebraic Geometry · Mathematics 2025-12-24 Grigory Belousov , DongSeon Hwang

Let $S$ be a del Pezzo surface with at worse Du Val singularities of degree $\ge 3$. We construct an $H$-polar cylinder for any ample $\mathbb{Q}$-divisor $H$ on $S$.

Algebraic Geometry · Mathematics 2025-09-03 Masatomo Sawahara

We give examples of K-unstable singular del Pezzo surfaces which are weighted hypersurfaces with index 2.

Algebraic Geometry · Mathematics 2020-11-10 In-kyun Kim , Joonyeong Won

Let $S$ be a del Pezzo surface with at worst Du Val singularities of degree $2$ such that $S$ admits an $(-K_S)$-polar cylinder. In this article, we construct an $H$-polar cylinder for any ample $\mathbb{Q}$-divisor $H$ on $S$.

Algebraic Geometry · Mathematics 2026-05-15 Masatomo Sawahara

We present a description for the automorphism groups of Du Val del Pezzo surfaces whose automorphism groups are infinite.

Algebraic Geometry · Mathematics 2023-12-15 Nikita Virin

We classify smooth del Pezzo surfaces whose alpha-invariant of Tian is bigger than one.

Algebraic Geometry · Mathematics 2011-01-12 Ivan Cheltsov , Andrew Wilson

We classify all the del Pezzo surfaces with $\frac{1}{3}(1,1)$- and $\frac{1}{4}(1,1)$-singularities having no floating $(-1)$-curves into 39 types.

Algebraic Geometry · Mathematics 2019-03-05 Takayuki Miura

We give a classification of toric log del Pezzo surfaces with two or three singular points.

Algebraic Geometry · Mathematics 2019-10-02 Yusuke Suyama
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