Classification of curves on a two-dimensional manifold under a restricted set of continuous deformations
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Publication:2646417
DOI10.2307/1968926zbMath0021.32803OpenAlexW2323443721MaRDI QIDQ2646417
Publication date: 1939
Published in: Annals of Mathematics. Second Series (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.2307/1968926
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