Reputation
683
Top tag
Next privilege 1,000 Rep.
Create tags
Badges
4 17
Newest
 Taxonomist
Impact
~6k people reached

Apr
19
awarded  Taxonomist
Mar
3
accepted Solvable Lie algebra with codimension 1 ideal
Feb
5
comment First examples for topology of non-Hausdorff spaces
@EricWofsey What is an "inductive Mayer-Vietoris argument"?
Feb
5
comment First examples for topology of non-Hausdorff spaces
@PedroTamaroff The only broad thing about the question is the last paragraph, which is optional (should I say "bonus question"?).
Feb
5
asked First examples for topology of non-Hausdorff spaces
Dec
20
awarded  Constituent
Dec
8
awarded  Caucus
Sep
28
answered Calculus on Manifolds (Spivak), problem 2-41(a)
Sep
24
awarded  Autobiographer
Jul
22
comment Connection in fibre bundle from discontinuous group action
@Bombyxmori I think it is reasonable, considering that I "act in every direction". The formal argument I know invokes Poincaré duality to conclude: if a group $\Gamma$ acts (faithfully) on a contractible manifold $X$ and $\mathrm{cd} \, \Gamma = \dim X$, then $X / \Gamma$ is compact. ($\mathrm{cd}$ being the "cohomological dimension".)
Jul
22
revised Connection in fibre bundle from discontinuous group action
deleted 89 characters in body
Jul
2
awarded  Curious
Jun
22
awarded  Nice Question
Jun
17
awarded  Yearling
Jun
12
comment Number of Zeros of a Section vs Integral First Chern Class
Thanks. Any hint as to why this is true?
Jun
12
comment Number of Zeros of a Section vs Integral First Chern Class
"complex line bundles are actually classified by their first Chern class" Is this true for bundles over any base space?
May
18
reviewed Reviewed Solving of the first-order nonlinear differential equation
May
17
reviewed Reviewed Lie group, differential of multiplication map
May
17
reviewed No Action Needed Given three continuous and diffrentiable functions satisfying given condition, which of the following options are correct
Mar
19
comment Can one exchange fibre and base space in a fibre bundle?
@geodude My question was about "general fibre bundles", I'm not really interested in direct products. Thank you for the link.