Mathematics – Algebraic Geometry
Scientific paper
2004-05-26
Mathematics
Algebraic Geometry
33 pages
Scientific paper
We give a complete description of all classical Enriques surfaces with non-zero global vector fields. In particular we show that there are such surfaces. The obtained result also applies to supersingular Enriques surfaces fulfilling a rather special condition. During this classification we study some properties of genus 1-fibrations special to characteristic as well as make a close study of the genus 1-fibration on the surfaces that we classify.
Ekedahl Torsten
Shepherd-Barron Nick I.
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