Jialong Deng's user avatar
Jialong Deng's user avatar
Jialong Deng's user avatar
Jialong Deng
  • Member for 6 years, 5 months
  • Last seen this week
  • Göttingen, Deutschland
34 votes
1 answer
2k views

Can a topological manifold have different tangent bundles?

13 votes
0 answers
480 views

Aspherical manifold and non-positive curvature

11 votes
1 answer
638 views

Can the diameter be controled by the injectivity radius and the volume?

10 votes
1 answer
385 views

Scalar curvature and the degree of symmetry

7 votes
1 answer
207 views

Existence of harmonic maps onto the $n$-sphere

7 votes
0 answers
311 views

Have examples of non-simple connected higher-dimensions integer homology sphere?

7 votes
2 answers
287 views

Does positive scalar curvature imply vanishing of the simplicial volume on a closed Riemannian manifold?

7 votes
1 answer
218 views

Can we realize the smooth metric of an Alexandrov space with nonnegative curvature by a Riemannian structure?

6 votes
0 answers
124 views

How to decide a closed Top/PL manifold is a boundary?

6 votes
2 answers
357 views

What is the geometric meaning of one Riemannian metric bigger than the other one on a smooth manifold?

6 votes
1 answer
231 views

When the image of a convex set in $\mathbb{R}^n$ is still a convex set?

5 votes
1 answer
338 views

The product of two Hausdorff measures

5 votes
3 answers
304 views

Recovering the length metric from Hausdorff measure

3 votes
0 answers
86 views

What can be reflected by the $C^0$-limit of Riemannian metrics?

3 votes
0 answers
83 views

If M times circle admits a locally CAT(0)-metric, then M also carries a locally CAT(0)-metric?

3 votes
0 answers
200 views

If the total space of circle bundle over hyperbolic manifold admits Riemannain metric of non-positive sectional curvature?

3 votes
0 answers
218 views

From nonnegative sectional curvature to positive sectional curvature

3 votes
0 answers
142 views

Can we use the "size" of smooth structure set to predict the information geometry or other topological information?

2 votes
1 answer
196 views

Non-negatively curved manifolds and the volume of balls

1 vote
0 answers
220 views

What is the meaning of Conjugate radius and Injectivity radius?

1 vote
1 answer
190 views

Non-positive sectional curvature in 3-dimensional manifold

0 votes
1 answer
259 views

The properties of total variation metric