Show that if for each i, the point p is a deformation retract of an open set W_i of X_i, then the fundamental group of X is the external free product of the groups pi_1(X_i, p) relative to the monomorphisms induced by inclusion.
Recently Asked Questions
- Describe a research scenario where you might consider using archival data? Please be specific as to the type of archival data (e.g. medical records, prison
- What distinguished President Eisenhower’s “Modern Republicanism” from his party’s policies in the past
- The International Banking Act required foreign banks to identify one state as their home state so that they would be regulated like other U.S.-based banks