e/Hopf surface

Information
has gloss	eng: In complex geometry, a Hopf surface is a compact complex surface obtained as a quotient of the complex vector space (with zero deleted) C2 \ 0 by a free action of a discrete group. If this group is the integers the Hopf surface is called primary, otherwise it is called secondary. (Some authors use the term "Hopf surface" to mean "primary Hopf surface".) The first example was found by , with the discrete group isomorphic to the integers, with a generator acting on C2 by multiplication by 2; this was the first example of a compact complex surface with no Kähler metric.
lexicalization	eng: Hopf surface
instance of	c/Complex surfaces