scientific article
zbMath0419.20025MaRDI QIDQ3852382
Publication date: 1979
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
spectral sequencesfree products of groupsfree group of finite rankfree products with amalgamationshomology isomorphismabelianization mapcentral, cyclic extensioncyclic extensions of free groupsfinitely generated groups with infinitely many endsfundamental group of a finite tree
Graphs and abstract algebra (groups, rings, fields, etc.) (05C25) Homological methods in group theory (20J05) Automorphism groups of groups (20F28) Free nonabelian groups (20E05) Free products of groups, free products with amalgamation, Higman-Neumann-Neumann extensions, and generalizations (20E06) Fundamental groups and their automorphisms (group-theoretic aspects) (20F34)
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