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Jean Van Schaftingen's user avatar
Jean Van Schaftingen's user avatar
Jean Van Schaftingen's user avatar
Jean Van Schaftingen
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11 Questions

Score Activity Newest Views
7 votes
5 answers
1k views

The Hopf invariant is an isomorphism for $\pi_3 (S^2)$

5 votes
0 answers
251 views

Equivariant isometric embedding of manifolds in a Hilbert space under a noncompact group action

3 votes
2 answers
213 views

Name for an orthogonal decomposition of $L^2 (\mathbb{R}^2; \mathbb{C})$

3 votes
2 answers
858 views

Nonpathological nonnormal covering space

3 votes
2 answers
395 views

Metric space whose bounded subsets are totally bounded

2 votes
0 answers
314 views

Explicit map with Hopf invariant two in any even dimension

2 votes
0 answers
51 views

What do you call $\operatorname{diam} (A)^d/\mathcal{L}^d (A)$ for $A \subseteq \mathbb{R}^d$ convex?

2 votes
0 answers
133 views

Points are removable for weakly differentiable functions

1 vote
1 answer
75 views

Name for a uniform local boundedness property of a function

1 vote
0 answers
52 views

Factoring a smooth map as a function to a linear map

0 votes
0 answers
127 views

Riemannian manifolds on which bounded sets are totally bounded