Godeaux surfaces with an Enriques involution and some stable degenerations
Godeaux surfaces with an Enriques involution and some stable degenerations
复制标题
Godeaux 表面具有 Enriques 复合和一些稳定的退化
DOI:
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
R. Pardini
中科院分区:
文献类型:
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作者:
M. M. Lopes;R. Pardini
We give an explicit description of the Godeaux surfaces S (minimal surfaces of general type with \( K_{S}^{2} = \chi ({\mathcal{O}}_{S} ) = 1 \)) that admit an involution σ such that S/σ is birational to an Enriques surface; these surfaces give a 6-dimensional unirational irreducible subset of the moduli space of surfaces of general type. In addition, we describe the Enriques surfaces that are birational to the quotient of a Godeaux surface by an involution and we show that they give a 5-dimensional unirational irreducible subset of the moduli space of Enriques surfaces. Finally, by degenerating our description we obtain some examples of non-normal stable Godeaux surfaces; in particular we show that one of the families of stable Gorenstein Godeaux surfaces classified in Franciosi et al. (in preparation) consists of smoothable surfaces.
影响因子:
0.8
作者:
M. Franciosi;R. Pardini;S. Rollenske
通讯作者:
M. Franciosi;R. Pardini;S. Rollenske
影响因子:
0.6
作者:
Sönke Rollenske
通讯作者:
Sönke Rollenske
DOI:
10.1007/s00029-017-0342-6
发表时间:
2018
期刊:
Selecta Mathematica
影响因子:
--
作者:
Marco Franciosi;Rita Pardini;Sönke Rollenske
通讯作者:
Sönke Rollenske