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Article Dans Une Revue Épijournal de Géométrie Algébrique Année : 2018

Algebraic models of the Euclidean plane

Jérémy Blanc
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Résumé

We introduce a new invariant, the real (logarithmic)-Kodaira dimension, that allows to distinguish smooth real algebraic surfaces up to birational diffeomorphism. As an application, we construct infinite families of smooth rational real algebraic surfaces with trivial homology groups, whose real loci are diffeomorphic to R-2, but which are pairwise not birationally diffeomorphic. There are thus infinitely many non-trivial models of the euclidean plane, contrary to the compact case.

Dates et versions

hal-02314962 , version 1 (14-10-2019)

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Jérémy Blanc, Adrien Dubouloz. Algebraic models of the Euclidean plane. Épijournal de Géométrie Algébrique, 2018, 2 (14). ⟨hal-02314962⟩
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