Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1859-1871 https://doi.org/10.4134/BKMS.b160810 Published online July 20, 2017 Printed September 30, 2017
Egor Yasinsky Steklov Mathematical Institute of Russian Academy of Sciences
Abstract : We compute the Jordan constant for the group of birational automorphisms of a projective plane $\mathbb{P}^2_{\kk}$, where $\kk$ is either an algebraically closed field of characteristic 0, or the field of real numbers, or the field of rational numbers.
Keywords : Cremona group, Jordan constant, conic bundle, del Pezzo surface, automorphism group
