On the asphericity of regions in a 3-sphere.

DOI10.4064/fm-32-1-149-166zbMath65.1442.01OpenAlexW1167730531MaRDI QIDQ2594983

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Publication date: 1939

Published in: Fundamenta Mathematicae (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/213054

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