bidouble

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English[edit]

Etymology[edit]

bi- +‎ double

Adjective[edit]

bidouble (not comparable)

  1. (mathematics) Acting as a finite flat Galois morphism with Galois group (Z/2)²-.
    • 2016, Alice Garbagnati, “Smooth double covers of K3 surfaces”, in arXiv[1]:
      We give explicit examples of surfaces with Kodaira dimension 1 and 2 obtained as double cover of K3 surfaces and we describe some of them as bidouble cover of rational surfaces.