On Z/3-Godeaux surfaces
On Z/3-Godeaux surfaces
复制标题
在 Z/3-Godeaux 曲面上
DOI:
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
G. Urz'ua
中科院分区:
文献类型:
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作者:
Stephen Coughlan;G. Urz'ua
We prove that Godeaux--Reid surfaces with torsion group Z/3 have topological fundamental group Z/3. For this purpose, we describe degenerations to stable KSBA surfaces with one 1/4(1,1) singularity, whose minimal resolution are elliptic fibrations with two multiplicity 3 fibres and one I_4 singular fibre. We study special such degenerations which have an involution, describing the corresponding Campedelli double plane construction. We also find some stable rational degenerations, some of which have more singularities, and one of which has a single 1/9(1,2) singularity, the minimal possible index for such a surface. Finally, we do the analogous study for the Godeaux surfaces with torsion Z/4.
影响因子:
0.8
作者:
M. Franciosi;R. Pardini;S. Rollenske
通讯作者:
M. Franciosi;R. Pardini;S. Rollenske