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awarded  Necromancer
Feb
5
answered Why are there so many smooth functions?
Nov
6
answered reference on complex dynamics
Nov
3
awarded  Good Answer
Nov
2
reviewed Looks OK Geodesic on Banach Manifold
Oct
31
awarded  Necromancer
Oct
2
awarded  Necromancer
Sep
2
reviewed Approve Physicist's request for intuition on covariant derivatives and Lie derivatives
Jul
15
reviewed Approve Generalized geometries
Jul
12
reviewed Approve Example of a homogeneous (not monomial) $(x,y)$-primary ideal $I$ in $K[x,y]$
Jul
8
awarded  Good Answer
Jul
2
awarded  Organizer
Jul
2
revised Are there any books that take a 'theorems as problems' approach?
tag added
Jul
1
reviewed Edit How to determine an unitary operator involved in an unitary transformation?
Jul
1
revised How to determine an unitary operator involved in an unitary transformation?
fixing grammar
May
13
revised Who introduced the concept of topological mixing?
replaced adjectives with adverbs where they belong
Apr
18
awarded  Yearling
Apr
16
awarded  Nice Answer
Apr
12
awarded  Nice Answer
Apr
10
comment Most interesting mathematics mistake?
The story was recounted by Kazimierz Kuratowski in his ``A half century of Polish mathematics." Of course neither Suslin nor his advisor Lusin were Polish, but Waclaw Sierpinski, a Polish mathematician who was interned in Russia at that time, witnessed the conversation between Suslin and Lusin in which the student communicated the discovery to the professor.