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Asaf Shachar
  • Member for 8 years, 9 months
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24 votes
1 answer
2k views

Geometric interpretation of Hölder's inequality

20 votes
2 answers
1k views

Is the AM-GM inequality the only obstruction for getting a specific sum and product?

19 votes
3 answers
1k views

If two Riemannian manifolds can be isometrically immersed in each other, are they isometric?

18 votes
1 answer
2k views

Is there an explicit left invariant metric on the general linear group?

18 votes
2 answers
2k views

Can every Riemannian manifold be embedded in a sphere?

16 votes
3 answers
1k views

Must a matrix of which all conjugates have zero diagonal be zero?

15 votes
2 answers
611 views

Isometry group of a norm is always contained in some Isometry group of an inner product?

15 votes
2 answers
2k views

Is every topological manifold completely metrizable?

14 votes
1 answer
4k views

Uniqueness of bi-invariant metrics on Lie groups?

13 votes
2 answers
992 views

Metric Isometry is always smooth?

13 votes
0 answers
327 views

Non-trivial isometries of the left invariant metric on $GL_n$

13 votes
1 answer
749 views

Is a general smooth rescaling of a complete vector field itself complete?

13 votes
0 answers
275 views

Is there a volume-preserving diffeomorphism of the disk with prescribed singular values?

12 votes
1 answer
297 views

Can we recover all matrix minors from some of them?

12 votes
1 answer
230 views

What is the "right" extra information needed to define the trace of a map between two different vector spaces?

12 votes
1 answer
1k views

"Lebesgue" measurabillity on Riemannian manifolds

12 votes
2 answers
2k views

Distance of a matrix from the orthogonal group

12 votes
1 answer
248 views

Is there a "global" convexity locally around a minimum?

12 votes
1 answer
416 views

Is every geodesic-preserving diffeomorphism an isometry?

11 votes
7 answers
780 views

The vertices of a tetrahedron lie on a sphere

11 votes
0 answers
739 views

Every vector bundle has a metric connection?

11 votes
1 answer
1k views

Does Hodge-star commute with metric connections?

11 votes
1 answer
326 views

The image of every strictly non-expanding map between spheres is contained in an open hemisphere?

10 votes
2 answers
301 views

"Universal" differential identities

10 votes
1 answer
661 views

Solutions to Dirichlet problem on manifolds with boundary

10 votes
3 answers
661 views

The Riemannian Distance function does not change if we use smooth paths?

10 votes
0 answers
165 views

Does the space of matrices above rank $k$ admit a transitive Lie group action?

10 votes
2 answers
317 views

Is this identity about the Ricci curvature true?

10 votes
1 answer
258 views

Are gradient flows the quickest way to minimize a function for a short time?

10 votes
1 answer
185 views

Can we approximate a.e. invertible matrices with everywhere invertible matrices in $L^2$ sense?

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