A colimit of classifying spaces

作者：Ellis Graham^*; Mikhailov Roman

来源：Advances in Mathematics, 2010, 223(6): 2097-2113.

DOI：10.1016/j.aim.2009.11.003

• Homotopy group
• Homotopy colimit
• Combinatorial group theory

We recall a description of the first non-vanishing homotopy group of a certain (n + 1)-ad of spaces and show how it yields group-theoretic formulae for homotopy groups of several specific spaces.

• 出版日期2010-4-1