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On the complete classification of extremal log Enriques surfaces

✍ Scribed by Keiji Oguiso; De-Qi Zhang

Publisher
Springer-Verlag
Year
1999
Tongue
French
Weight
239 KB
Volume
231
Category
Article
ISSN
0025-5874

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R&urn& We introduce a new invariant, Pontryagin-Viro form, of real algebraic surfaces. We evaluate it for real Enriques surfaces with non-negative minimal Euler characteristic of the components of the real part and prove that, when combined with the known topological invariants. it distinguishes the