Group extensions for 45 years

DOI10.1007/BF03028353zbMath0657.01011MaRDI QIDQ1110488

Saunders Mac Lane

Publication date: 1988

Published in: The Mathematical Intelligencer (Search for Journal in Brave)

zbMATH Keywords

cohomologyhomologytopological space

Mathematics Subject Classification ID

History of mathematics in the 20th century (01A60) Homological methods in group theory (20J05) Extensions, wreath products, and other compositions of groups (20E22) History of algebraic topology (55-03) History of category theory (18-03) History of group theory (20-03)

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