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TypeTitleAuthorRepliesLast Post
Open problemFundamental group torsion for subsets of Euclidean 3-space rybu016 years 6 weeks ago
categorytorsion Anonymous016 years 6 weeks ago
categoryStallings Anonymous016 years 6 weeks ago
categoryPoincare Anonymous016 years 6 weeks ago
categorySmale Anonymous016 years 6 weeks ago
categoryhomology ball Anonymous016 years 6 weeks ago
categoryhomology sphere Anonymous016 years 6 weeks ago
Open problemWhich homology 3-spheres bound homology 4-balls? rybu016 years 6 weeks ago
categoryknot space Anonymous016 years 6 weeks ago
categorysymmetry Anonymous016 years 6 weeks ago
categoryknot Anonymous016 years 6 weeks ago
categorycobordism Anonymous016 years 6 weeks ago
categoryribbon Anonymous016 years 6 weeks ago
categoryslice Anonymous016 years 6 weeks ago
categorypoincare Anonymous016 years 6 weeks ago
category4-manifold Anonymous016 years 6 weeks ago
categorySchoenflies Anonymous016 years 6 weeks ago
category4-dimensional Anonymous016 years 6 weeks ago
categorysphere Anonymous016 years 6 weeks ago
category4-dimensional sphere Schoenflies Anonymous016 years 6 weeks ago
categoryBudney, R Anonymous016 years 6 weeks ago
Open problemRealisation problem for the space of knots in the 3-sphere rybu016 years 6 weeks ago
categoryFox, R Anonymous016 years 6 weeks ago
Open problemSlice-ribbon problem rybu016 years 6 weeks ago
categoryFox, R. H. Anonymous016 years 6 weeks ago