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Related papers: Note on a family of surfaces with $p_g=q=2$ and $K…

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We study a family of surfaces of general type with $p_g=q=2$ and $K^2=7$, originally constructed by Cancian and Frapporti by using the Computer Algebra System MAGMA. We provide an alternative, computer-free construction of these surfaces,…

Algebraic Geometry · Mathematics 2017-11-03 Roberto Pignatelli , Francesco Polizzi

We construct a new family of minimal surfaces of general type with $p_g=q=2$ and $K^2=6$, whose Albanese map is a quadruple cover of an abelian surface with polarization of type $(1,3)$. We also show that this family provides an irreducible…

Algebraic Geometry · Mathematics 2014-12-01 Matteo Penegini , Francesco Polizzi

We classify minimal surfaces $S$ of general type with $p_g=q=2$ and $K_S^2=6$ whose Albanese map is a generically finite double cover. We show that the corresponding moduli space is the disjoint union of three generically smooth,…

Algebraic Geometry · Mathematics 2012-12-24 Matteo Penegini , Francesco Polizzi

We construct smooth minimal complex surfaces of general type with $K^2=7$ and: $p_g=q=2,$ Albanese map of degree $2$ onto a $(1,2)$-polarized abelian surface; $p_g=q=1$ as a double cover of a quartic Kummer surface; $p_g=q=0$ as a double…

Algebraic Geometry · Mathematics 2017-03-24 Carlos Rito

We compute the automorphism group of all the elements of a family of surfaces of general type with $p_g=q=2$ and $K^2=7$, originally constructed by C. Rito. We discuss the consequences of our results towards the Mumford-Tate conjecture.

Algebraic Geometry · Mathematics 2024-07-30 Matteo Penegini , Roberto Pignatelli

We construct a connected, irreducible component of the moduli space of minimal surfaces of general type with $p_g=q=2$ and $K^2=5$, which contains both examples given by Chen-Hacon and the first author. This component is generically smooth…

Algebraic Geometry · Mathematics 2013-10-02 Matteo Penegini , Francesco Polizzi

In this paper, we study algebraic surfaces of general type with $p_g=q=1$ and genus 2 Albanese fibrations. We first study the examples of surfaces with $p_g=q=1, K^2=5$ and genus 2 Albanese fibrations constructed by Catanese using singular…

Algebraic Geometry · Mathematics 2018-04-09 Songbo Ling

We construct a family of general type surfaces with $q=4$, $p_g=6$ and $K^2=24$. These surfaces enjoy some interesting properties: they are Lagrangian in their Albanese variety and their canonical map is $2:1$ onto a degree $12$ surface in…

Algebraic Geometry · Mathematics 2025-02-19 Paolo Grossi , Federico Moretti

We construct a new family of minimal smooth surfaces of general type with K^2=7 and p_g= 0. We show that for a surface in this family, its canonical divisor is ample and its bicanonical morphism is birational. We prove that these surfaces…

Algebraic Geometry · Mathematics 2012-11-02 Yifan Chen

We give first an easy construction of surfaces with $p_g=q=2, K^2=5$ and Albanese map of degree $3$, describing an irreducible connected component of the moduli space of surfaces of general type, which we show to be the only one of the Main…

Algebraic Geometry · Mathematics 2023-06-28 Massimiliano Alessandro , Fabrizio Catanese

The moduli space $\mathscr{M}$ of surfaces of general type with $p_g=q=1, K^2=g=3$ (where $g$ is the genus of the Albanese fibration) was constructed by Catanese and Ciliberto in \cite{CaCi93}. In this paper we characterize the subvariety…

Algebraic Geometry · Mathematics 2007-05-23 Francesco Polizzi

We study the construction of complex minimal smooth surfaces $S$ of general type with $p_g(S)=0$ and $K_S^2=7$. Inoue constructed the first examples of such surfaces, which can be described as Galois $\mathbb{Z}_2\times\mathbb{Z}_2$-covers…

Algebraic Geometry · Mathematics 2019-12-24 Yifan Chen , YongJoo Shin

We construct two complex-conjugated rigid surfaces with $p_g=q=2$ and $K^2=8$ whose universal cover is not biholomorphic to the bidisk. We show that these are the unique surfaces with these invariants and Albanese map of degree $2$, apart…

Algebraic Geometry · Mathematics 2020-06-16 Francesco Polizzi , Carlos Rito , Xavier Roulleau

In this paper we study the minimal surfaces of general type with $p_g=q=1$ and $K^2=4$ whose Albanese general fibre has genus 2, classifying those such that the direct image (under the Albanese morphism) of the bicanonical sheaf is sum of…

Algebraic Geometry · Mathematics 2009-06-15 Roberto Pignatelli

We consider minimal surfaces of general type with $p_g = 2$, $q = 1$ and $K^2 = 5$. We provide a stratification of the corresponding moduli space and we give some bounds for the number and the dimensions of its irreducible components.

Algebraic Geometry · Mathematics 2012-03-20 Tommaso Gentile , Paolo A. Oliverio , Francesco Polizzi

We study minimal complex surfaces S of general type with q(S)=q and p_g(S)=2q-3, q>= 5. We give a complete classification in case that S has a fibration onto a curve of genus >=2. For these surfaces K^2=8\chi. In general we prove that…

Algebraic Geometry · Mathematics 2008-11-05 Margarida Mendes Lopes , Rita Pardini

We prove a big monodromy result for a smooth family of complex algebraic surfaces of general type, with invariants p_g=q=1 and K^2=3, that has been introduced by Catanese and Ciliberto. This is accomplished via a careful study of…

Algebraic Geometry · Mathematics 2015-08-11 Christopher Lyons

In this paper we construct a new family of simply connected minimal complex surfaces of general type with $p_g=1$, $q=0$, and $K^2=3, 4, 5, 6, 8$ using a $\mathbb{Q}$-Gorenstein smoothing theory. We also reconstruct minimal complex surfaces…

Algebraic Geometry · Mathematics 2011-01-18 Heesang Park , Jongil Park , Dongsoo Shin

Let S be a minimal complex surface of general type with p_g=0 such that the bicanonical map of S is not birational and let Z be the bicanonical image. In [M.Mendes Lopes, R.Pardini, "Enriques surfaces with eight nodes", Math. Zeit. 241 (4)…

Algebraic Geometry · Mathematics 2007-05-23 Margarida Mendes Lopes , Rita Pardini

We classify the minimal algebraic surfaces of general type with $p_g=q=1, K^2=8$ and bicanonical map of degree 2. It will turn out that they are isogenous to a product of curves, so that if $S$ is such a surface then there exist two smooth…

Algebraic Geometry · Mathematics 2014-05-14 Francesco Polizzi
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