Properly homotopic nontrivial planes are isotopic
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Publication:4326486
DOI10.4064/FM-146-2-141-152zbMath0835.57008OpenAlexW1014855895MaRDI QIDQ4326486
Publication date: 16 April 1996
Published in: Fundamenta Mathematicae (Search for Journal in Brave)
Full work available at URL: https://eudml.org/doc/212057
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