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Jan Bohr
  • Member for 6 years, 4 months
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12 votes
2 answers
365 views

Are there exotic balls?

10 votes
1 answer
259 views

Dense subset of cut locus

9 votes
0 answers
305 views

Lifting spectral gap to covering space

9 votes
2 answers
750 views

Why is a Riemannian metric $g$?

8 votes
1 answer
225 views

Harmonic functions without critical points (global isothermal coordinates)

7 votes
0 answers
169 views

Quotient of measurable subspace measurable?

6 votes
2 answers
165 views

Find $(M,\partial M)$ with injective $H_k(\partial M)\rightarrow H_k(M)$.

5 votes
0 answers
237 views

Is the natural norm on the exterior algebra submultiplicative?

5 votes
1 answer
249 views

Extending strongly convex sets

4 votes
1 answer
76 views

Are points negligible for weak derivative in dimension 2?

4 votes
0 answers
130 views

Cauchy's integral formula with high tech methods

4 votes
0 answers
64 views

Dimension via Sobolev spaces?

3 votes
1 answer
246 views

$xf$ smooth $\Rightarrow$ $f$ smooth?

3 votes
0 answers
72 views

Is $C(\mathbb{R})\subset \mathbb{R}^\mathbb{R}$ measurable? [duplicate]

3 votes
0 answers
113 views

Distributional derivative only generalization?

3 votes
0 answers
94 views

Range of Lifted Differential Operators

3 votes
0 answers
58 views

Function spaces on manifolds via category theory

2 votes
1 answer
63 views

Heine-Borel property of symbol spaces

2 votes
2 answers
168 views

Winding number and zeroes of a holomorphic map

2 votes
1 answer
47 views

Convergence of maximum points on compact sets

2 votes
0 answers
68 views

What information is contained in the 'list of cells' of CW-complexes

2 votes
0 answers
85 views

Notions of Convexity

2 votes
1 answer
263 views

Extension of Pseudodifferential Operator to the real line

2 votes
1 answer
132 views

Manifold with unit balls of unbounded volume

2 votes
1 answer
127 views

Are isolated singularities always cone-like?

1 vote
0 answers
125 views

Proof compactness of adjoint operators

1 vote
0 answers
41 views

Extension to Borel measure

1 vote
0 answers
18 views

Fixed points of operators with wavefront constraint

0 votes
0 answers
45 views

Heuristics of overdetermined systems made precise

0 votes
0 answers
60 views

Hardy space and boundary regularity