{"version":"1.0","type":"link","title":"Hopf surface - Newikis","description":"In complex geometry, a Hopf surface is a compact complex surface obtained as a quotient of the complex vector space (with zero deleted) 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…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}