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rybu

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TypePostAuthorRepliesLast post
Open problemSmooth 4-dimensional Poincare conjecture rybu13 years 36 weeks ago
forum topicMaintaining questions in a subject area rybu414 years 35 weeks ago
Open problemThe 4x5 chessboard complex is the complement of a link, which link? rybu014 years 36 weeks ago
Open problemUnsolvability of word problem for 2-knot complements rybu014 years 42 weeks ago
Open problemIs there an algorithm to determine if a triangulated 4-manifold is combinatorially equivalent to the 4-sphere? rybu015 years 26 weeks ago
Open problemWhat is the homotopy type of the group of diffeomorphisms of the 4-sphere? rybu015 years 26 weeks ago
Open problemWhich compact boundaryless 3-manifolds embed smoothly in the 4-sphere? rybu015 years 26 weeks ago
Open problemFundamental group torsion for subsets of Euclidean 3-space rybu015 years 26 weeks ago
Open problemWhich homology 3-spheres bound homology 4-balls? rybu015 years 26 weeks ago
Open problemRealisation problem for the space of knots in the 3-sphere rybu015 years 26 weeks ago
Open problemSlice-ribbon problem rybu015 years 26 weeks ago
Open problemSmooth 4-dimensional Schoenflies problem rybu015 years 26 weeks ago

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