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Related papers: Classification of log Enriques surfaces with delta…

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Log Enriques surfaces with delta=2 are classified.

Algebraic Geometry · Mathematics 2016-09-07 Sergey Kudryavtsev

The exceptional log Del Pezzo surfaces with delta=1 are classified.

Algebraic Geometry · Mathematics 2015-06-26 Sergey Kudryavtsev

Log Enriques surface is a generalization of K3 and Enriques surface. We will classify all the rational log Enriques surfaces of rank 18 by giving concrete models for the realizable types of these surfaces.

Algebraic Geometry · Mathematics 2010-08-17 Fei Wang

We classifiy Enriques surfaces covered by the supersingular K3 surface with the Artin invariant 1 in characteristic 2. There are exactly three types of such Enriques surfaces.

Algebraic Geometry · Mathematics 2020-04-03 Shigeyuki Kondo

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

Algebraic Geometry · Mathematics 2019-10-02 Yusuke Suyama

Toric log Del Pezzo surfaces with Picard number 1 have been completely classified whenever their index is $\le 2$: In this paper we extend the classification for those having index 3: We prove that, up to isomorphism, there are exactly 18…

Algebraic Geometry · Mathematics 2007-09-10 Dimitrios I. Dais

We present the classification of involutions on Enriques surfaces. We classify those into 18 types with the help of the lattice theory due to Nikulin. We also give all examples of the classification.

Algebraic Geometry · Mathematics 2013-02-19 Hiroki Ito , Hisanori Ohashi

We show that there is only one log Enriques surface of index 7 and type $A_{15}$.

Algebraic Geometry · Mathematics 2018-08-22 Shingo Taki

We classify Enriques surfaces of zero entropy, or, equivalently, Enriques surfaces with a virtually abelian automorphism group.

Algebraic Geometry · Mathematics 2024-06-27 Gebhard Martin , Giacomo Mezzedimi , Davide Cesare Veniani

This note contains preliminary calculation of topological types or real Enriques surfaces. We realize 59 topological types of real Enriques surfaces (Theorem 6) and show that all other topological types belong to the list of 21 topological…

alg-geom · Mathematics 2008-02-03 Viacheslav V. Nikulin

This paper focuses on the classification of all toric log Del Pezzo surfaces with exactly one singularity up to isomorphism, and on the description of how they are embedded as intersections of finitely many quadrics into suitable projective…

Algebraic Geometry · Mathematics 2017-06-13 Dimitrios I. Dais

Complex Enriques surfaces with a finite group of automorphisms are classified into seven types. In this paper, we determine which types of such Enriques surfaces exist in characteristic 2. In particular we give a one dimensional family of…

Algebraic Geometry · Mathematics 2015-12-23 Toshiyuki Katsura , Shigeyuki Kondo

We consider log del Pezzo surfaces coming with a non-trivial torus action. Such a surface is 1/k-log canonical if it allows a resolution of singularities with discrepanies all greater or equal to 1/k-1. We provide a concrete classification…

Algebraic Geometry · Mathematics 2025-06-10 Daniel Haettig , Juergen Hausen , Justus Springer

We classify supersingular and classical Enriques surfaces with finite automorphism group in characteristic 2 into 8 types according to their dual graphs of all $(-2)$-curves (nonsigular rational curves). We give examples of these Enriques…

Algebraic Geometry · Mathematics 2019-05-17 Toshiyuki Katsura , Shigeyuki Kondo , Gebhard Martin

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

In the present paper we describe the K3 surfaces admitting order 11 automorphisms and apply this to classify log Enriques surfaces of global index 11.

Algebraic Geometry · Mathematics 2018-06-20 Keiji Oguiso , De-Qi Zhang

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 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 notion of ordinary Enriques surfaces and their canonical lifts in any positive characteristic, and we prove Torelli-type results for this class of Enriques surfaces.

Algebraic Geometry · Mathematics 2021-01-15 Roberto Laface , Sofia Tirabassi

We classify all primitive embeddings of the lattice of numerical equivalence classes of divisors of an Enriques surface with the intersection form multiplied by 2 into an even unimodular hyperbolic lattice of rank 26. These embeddings have…

Algebraic Geometry · Mathematics 2021-03-23 Simon Brandhorst , Ichiro Shimada
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