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Sergey Melikhov's user avatar
Sergey Melikhov's user avatar
Sergey Melikhov's user avatar
Sergey Melikhov
  • Member for 14 years, 1 month
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answer
44
Status of PL topology
May 5, 2012
answer
27
Can surfaces be interestingly knotted in five-dimensional space?
Jan 20, 2011
answer
23
A simplicial complex which is not collapsible, but whose barycentric subdivision is
Feb 6, 2012
answer
22
How to "see" that double suspension of homology 3-sphere is homeomorphic to a sphere?
Jun 13, 2012
question
22
Is the equivariant cohomology an equivariant cohomology?
Jun 21, 2011
answer
22
How to tackle the smooth Poincaré conjecture
May 22, 2012
answer
21
Pushforward and pullback.
Dec 14, 2010
answer
19
Can the Alexander horned sphere arise as a cell boundary in a finite CW-sphere?
Jun 4, 2012
answer
19
Torsion in homology or fundamental group of subsets of Euclidean 3-space
Nov 13, 2010
answer
18
Status of PL topology
May 9, 2012