{"version":"1.0","type":"link","title":"Classifying space - Newikis","description":"In mathematics, specifically in homotopy theory, a classifying space BG of a topological group G is the quotient of a weakly contractible space EG (i.e., a topological space all of whose homotopy groups are trivial) by a proper free action of G. It has the property that any G principal bundle over…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}