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Igor Belegradek
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Apparently, this user prefers to keep an air of mystery about them.

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51 On referee-author communications Jan 2 '11
47 Can a topological manifold have different tangent bundles? Apr 18 '16
42 Examples of non-diffeomorphic smooth manifolds with diffeomorphic tangent bundle Jul 13 '10
34 What is torsion in differential geometry intuitively? Apr 6 '10
34 If a manifold suspends to a sphere… May 5 '11
33 Can an oriented closed $n(\geq 2)$-dimensional manifold be smoothly embedded in $\mathbb{R}^{2n-1}$? Jan 1 '16
29 Is a free alternative to MathSciNet possible? Feb 1 '10
27 Can the product of a 3-dimensional lens space with a circle be diffeomorphic to another such product when the lens spaces aren't diffeomorphic? May 5
25 Non embedding of $Y\times Y$ into $\mathbb{R}^3$ Apr 14 '18
25 Proper subgroup of GL(n,Z) isomorphic to GL(n,Z)? Sep 15 '10
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