On the moduli space of real Enriques surfaces
Date
1997
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Degtyarev, A.
Kharlamov, V.
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Abstract
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 deformation types of such surfaces.
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Comptes Rendus de l'Academie des Sciences - Series I: Mathematics
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Elsevier
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