Extensions of finite cyclic group actions on bordered surfaces
نویسندگان
چکیده
منابع مشابه
Group Actions, Cyclic Coverings and Families of K3-surfaces
In this paper we describe six pencils of K3-surfaces which have large Picardnumber (15 ≤ ρ ≤ 20) and contain precisely five singular fibers: four have A-D-E singularities and one is non-reduced. In particular we describe these surfaces as cyclic coverings of the K3-surfaces of [BS]. In many cases using this description and latticetheory we are able to compute the exact Picard-number and to desc...
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ژورنال
عنوان ژورنال: Revista Matemática Iberoamericana
سال: 2015
ISSN: 0213-2230
DOI: 10.4171/rmi/837