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24
If compact connected Lie groups are homeomorphic as topological space, are they isomorphic as Lie groups?
Jun 6 '11 at 12:20
12
Examples of common false beliefs in mathematics
May 19 '11 at 23:26
10
Lie algebra $\mathfrak{so}(9)$ as a subalgebra of $\mathfrak{f}_4$
Mar 24 '13 at 19:57
10
Examples of conjectures that were widely believed to be true but later proved false
Jul 2 '12 at 1:06
9
Instances where an existence result precedes the constructive version
Aug 15 '12 at 2:28
9
Commutativity of the fundamental group of any Lie Group
May 25 '12 at 13:06
9
$H_2$ of a simply connected Lie group vanishes
May 29 '11 at 15:50
8
one-parameter subgroup and geodesics on Lie group
Nov 22 '11 at 11:57
7
Automorphism group of flag manifolds?
Mar 14 '14 at 3:17
6
Flag manifolds (=R-spaces): quotients by parabolic subgroups vs. isotropy representation
Jan 22 '14 at 0:52
6
Is there a good notion of morphism between orbifolds?
Dec 13 '13 at 17:36
6
Is there a Morse theory proof of the Bruhat decomposition?
Apr 15 '12 at 14:09
6
homotopy type of connected Lie groups
Jun 19 '11 at 1:47
6
What's the notation for a function restricted to a subset of the codomain?
May 24 '11 at 2:37
5
Check symplectomorphism property on infinitesimal generators
Jul 27 at 0:58
5
Orbits of an action
Aug 7 '13 at 20:18
5
Compact surface with genus$\geq 2$ with Killing field
Feb 20 '13 at 22:55
5
Orthogonal foliations
Jun 10 '11 at 3:13
4
Cutlocus and conjugate points
Jan 24 '13 at 18:03
4
Criteria for Involutive Subbundles
Mar 22 '12 at 14:24
4
Full isometry groups of Stiefel and Grassmann manifolds
Feb 26 '12 at 19:31
4
Lie bracket of Invariant Vector fields
Nov 28 '11 at 18:43
4
Ricci curvature of the symplectic group
Jun 10 '11 at 15:11
4
Unique Almost Complex Structure with a Two-Form
May 26 '11 at 21:07
3
Lie group about the quantum harmonic oscillator
Apr 12 '14 at 13:49
3
Subgroups of $E(n) = \mathbb{R}^n \rtimes O(n)$ with trivial orbit space
Feb 1 '14 at 15:56
3
Another proof of the bidisc and the ball are biholomorphically inequivalent?
Feb 18 '13 at 19:40
3
locally compact NSS groups and infinite dimensional Lie groups
Feb 13 '13 at 21:38
3
Holonomy of compact manifolds
Apr 11 '12 at 16:46
3
Orbit of the identity matrix under Lie group algebra actions
Mar 25 '12 at 20:06
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