Deane Yang's user avatar
Deane Yang's user avatar
Deane Yang's user avatar
Deane Yang
  • Member for 14 years, 5 months
  • Last seen this week
22 votes
1 answer
1k views

Is the metric completion of a Riemannian manifold always a geodesic space?

15 votes
2 answers
2k views

Does the Legendre-Hadamard condition imply a generalized Gårding inequality?

39 votes
6 answers
4k views

Negative impact of wrong or non-rigorous proofs

4 votes
1 answer
88 views

Point of maximal distance on a non-positively curved PL surface

24 votes
14 answers
4k views

Ring with three binary operations

12 votes
2 answers
2k views

Existence, uniqueness, and regularity for linear parabolic PDE on a complete Riemannian manifold

25 votes
4 answers
3k views

Ellipse naturally associated with a polygon

5 votes
1 answer
485 views

Isometric embedding of a positively curved polyhedral surface

6 votes
4 answers
645 views

What is the easiest way to classify all possible smooth orientable closed 2-manifolds?

12 votes
6 answers
3k views

Geodesics on a Grassmannian

15 votes
2 answers
848 views

Is a smooth closed surface in Euclidean 3-space rigid?

86 votes
11 answers
30k views

Is there a complex structure on the 6-sphere?

21 votes
5 answers
2k views

Point singularity of a Riemannian manifold with bounded curvature