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THE JORDAN CONSTANT FOR CREMONA GROUP OF RANK 2

  • Yasinsky, Egor (Steklov Mathematical Institute of Russian Academy of Sciences)
  • Received : 2016.10.07
  • Accepted : 2017.02.13
  • Published : 2017.09.30

Abstract

We compute the Jordan constant for the group of birational automorphisms of a projective plane ${\mathbb{P}}^2_{\mathbb{k}}$, where ${\mathbb{k}}$ is either an algebraically closed field of characteristic 0, or the field of real numbers, or the field of rational numbers.

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