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K3 surface  

Definición

  • In mathematics, a complex analytic K3 surface is a compact connected complex manifold of dimension 2 with а trivial canonical bundle and irregularity zero. An (algebraic) K3 surface over any field means a smooth proper geometrically connected algebraic surface that satisfies the same conditions. In the Enriques–Kodaira classification of surfaces, K3 surfaces form one of the four classes of minimal surfaces of Kodaira dimension zero.
    (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/K3_surface)

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http://data.loterre.fr/ark:/67375/PSR-XF5VH475-1

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