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Publication:3687357
zbMath0571.57013MaRDI QIDQ3687357
Publication date: 1984
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
second homotopy groupalmost invariant subsetsfree product decompositionsclosed, orientable 3-manifoldends of the fundamental grouphomotopy classes of embedded spheres
Homological methods in group theory (20J05) Fundamental group, presentations, free differential calculus (57M05) Realizing cycles by submanifolds (57R95)
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