19

Questions
votes newest views recent
1
5
votes
1
answer
201
views

Homogeneous metrics of given volume element, on the n-sphere.

jul 24 at 4:13 Robert Bryant 21.8k●3●75●97

 
5
votes
1
answer
276
views

Spin and SO groups associated to a degenerate symmetric bilinear form

aug 12 at 18:27 Qiaochu Yuan 38.4k●5●116●303

 
4
votes
1
answer
612
views

Classification of smooth atlases

mar 6 12 at 20:05 Ryan Budney 21.6k●1●40●101

3
4
votes
2
answers
1k
views

Conditions for smooth dependence of the eigenvalues and eigenvectors of a matrix on a set of parameters

oct 2 at 13:03 Peter Michor 5,542●11●18

3
3
votes
3
answers
681
views

Can the adjoint of the exterior derivative in semi-Riemannian geometry be defined without the Hodge * operator?

nov 29 10 at 11:17 unknown (google) 1

1
1
vote
3
answers
248
views

Open problems in sub-Riemannian geometry

apr 18 at 21:08 Robert Bryant 21.8k●3●75●97

1
0
votes
3
answers
404
views

Analyticity of the solutions of PDE

apr 20 at 10:18 quid 13.3k●33●54

 
0
votes
1
answer
143
views

Applications of the natural bilinear forms on the direct sum between a vector space and its dual

feb 28 at 18:40 Peter Michor 5,542●11●18

1
0
votes
1
answer
386
views

Is there something like the Hodge decomposition if the metric is indefinite?

may 8 11 at 10:41 Cristi Stoica 1,698●13●23

prev 1 2