{"version":"1.0","type":"link","title":"Graph of groups - Newikis","description":"In geometric group theory, a graph of groups is an object consisting of a collection of groups indexed by the vertices and edges of a graph, together with a family of monomorphisms of the edge groups into the vertex groups. There is a unique group, called the fundamental group, canonically…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}